SOLAR PRODUCTS CATALOG DO W Lit N te LO lfu A se D .co C m AT /c A at LO alo G gs S 1000 VDC Protection • Full-Range Protection • Remote Notification • Overvoltage Protection Technical Expertise and Manufacturing Excellence With over 14 million devices installed in photovoltaic power systems, Littelfuse understands the global challenges of the solar market. Littelfuse offers numerous circuit-protection products that are uniquely suited to protect the equipment and systems subject to the harsh environments of photovoltaic installations. Items listed within this catalog, and even newer products and information available online, represent over 80 years of Littelfuse technical expertise and manufacturing excellence. understand the applications and environments of photovoltaic systems. Littelfuse products are manufactured in one of six facilities around the world, supported by a strong network of suppliers and a knowledgeable sales channel. This allows Littelfuse to provide the best products for photovoltaic applications - delivered where and when needed. The high power research lab in Champaign, Illinois, USA, provides design and test capabilities for up to 1500 VDC. Littelfuse design engineers and technicians, who participate in the global standards committees, Circuit-Protection Products for Photovoltaic Applications FUSES FUSE HOLDERS RELAYS & CONTROLS VARISTORS TVS DIODES POWER DISTRIBUTION As a global leader in circuit-protection, Littelfuse provides a wide selection of fuses, fuse holders, relays & controls, TVS diodes and varistors to improve system uptime, sustainability and reliability of photovoltaic power systems. Littelfuse circuit-protection products meet the unique requirements of photovoltaic applications – where issues such as heat, efficiency, longevity and global standards impact the choices in selecting protection options. In addition to a wide portfolio of circuit-protection products, Littelfuse offers decades of design experience to help address application challenges and achieve regulatory compliance. Littelfuse App! Download our free Littelfuse Catalogs and Literature App to keep our products and technical resources at your finger tips! Visit our website www.littelfuse.com/solar for additional technical specifications, reference materials and the latest updates on new products currently being developed. 1 2 3 4 5 6 7 8 SOLAR-RATED PRODUCTS 10 9 11 1. SPFJ Solar Fuses..............................2 5. Up-LINK™ Fuse Holder....................7 2. SPF Solar Fuses...............................4 6. LFPHV Fuse Holders........................8 • 1000 VDC • 125-450 A • UL Class J Size • 1000 VDC • Up to 30 A • 10x38mm 3. KLKD Solar Fuses............................5 • 600 VDC • Up to 30 A • 10x38mm 4. LPSM & LPHV Fuse Holders............6 • 600 & 1000 VDC • Accepts 10x38mm fuses • DIN-rail mountable • 600 VDC • Accepts 10x38mm fuses • DIN-rail mountable • 1000 VDC • Accepts 10x38mm fuses • Indication Available 12 9. SE-601 & EL731 Relays.................13 10. TVS Diodes..................................14 8. LDC & IDSR Fuses..........................10 • 250 - 400 A • UL Class R Size • LDC - Up to 2000 A • IDSR - Up to 600 A • Up to 3,500 VDC • 10,000 A maximum energy 10. Varistor Products.........................15 7. SPFR Solar Fuses.............................9 • DC Ground Fault Monitor • Sensitive Earth Leakage Relay • Up to 9,000 A maximum energy • -55˚ C to +85˚ C 11. Power Distribution Blocks............16 • Multiple-wire rated terminals • Connectors in copper or aluminum POWR-GARD® Solar Rated Products SPFJ SERIES Solar FUSEs 1000 VDC • 125-450 A Specifications Voltage Ratings Interrupting Rating Amperage Approvals Material Environmental Country of Origin Description The SPFJ series is the smallest 1000 VDC 125-450 A photovoltaic fuse available in the market. The SPFJ series is manufactured in Class J case sizes that allows for both fuse holder and bus bar mounting configuration. The SPFJ meets both UL and IEC requirements. Ordering Information Catalog Number Features/Benefits • • • • • • 1000 VDC 600 VAC AC: 200 kAIC DC: 125-200 A: 20 kAIC 250-400 A: 10 kAIC 450 A: 20 kAIC 125, 160, 200, 250, 300, 350, 400, 450 70-100 Amp models soon to be released UL 2579 Listed (File: E339112) UL 248-8, Class J (except 125, 160, 200 A) C UL (except 125, 160, 200 A) IEC 60269-6 VDE Approved (No. 40033659, 40033660, 40033661) Body: Melamine End Bells: Copper Alloy RoHS Compliant Mexico Meets UL and IEC photovoltaic standards Small footprint reduces panel size Full-range PV time-current characteristic Flexibility of fuse holder or bus bar mounting Higher amperage solar fuses in standard sizes UL Listed Class J branch and feeder circuit rated Applications ORDERING number AMPERAGE* SPFJ 125 SPFJ125.X 125 SPFJ 160 SPFJ160.X 160 SPFJ 200 SPFJ200.X 200 SPFJ 250 SPFJ250.X 250 SPFJ 300 SPFJ300.X 300 SPFJ 350 SPFJ350.X 350 SPFJ 400 SPFJ400.X 400 SPFJ 450 SPFJ450.X 450 *70-100 Amp models in 200 Amp case size soon to be released. • Inverters • Re-combiner boxes Dimensions Recommended Fuse Holders LFJ 1000 VDC............................................................................3 F E Web Resources G A Downloadable CAD drawings and other technical information: www.littelfuse.com/spfj D B C Amperage DIMENSIONS INCHES (MM) A B C D E F G 125-200 3 (76.2) 4 11/32 (110.19) 5 3/4 (146.05) 1 1/2 (38.1) 1 1/8 (28.6) 0.334 (8.5) 3/16 (4.8) 250-400 3 3/8 (85.7) 5 1/4 (133.35) 7 1/8 (181.0) 2 (50.8) 1 5/8 (41.3) 13/32 (10.3) 1/4 (6.4) 450 3 3/4 (95.3) 5.98 (151.99) 8 (203.2) 2 1/2 (63.5) 2 (50.8) 17/32 (13.5) 3/8 (9.5) www.littelfuse.com/solar 2 © 2012 Littelfuse Solar Products Catalog POWR-GARD® Solar Rated Products LF Series Solar fuse block 1000 VDC Specifications Voltage Ratings Ampere Ratings Flammability Rating Termination Type Base Temp Rating Approvals Environmental 1000 VDC 100 A, 200 A, 400 A, 450 A UL94 V-0 Box Lug 130˚ C UL 4248-18 Listed File: E345481 Vol. 1 RoHS Compliant Recommended Fuses SPFJ Solar Series.................................................................... 2 Description The LFJ 1000 V fuse block is specifically designed for the Littelfuse SPFJ 1000 V Solar Fuse. It meets UL electrical characteristic requirements and is available in multiple amperages. Web Resources Sample requests, downloadable CAD drawings, dimensions and other technical information: www.littelfuse.com/fuseblocks Features/Benefits • Narrow width increases space savings • Range of amperages to match all SPFJ fuse options • Box Lug termination style accommodates a wide range of cable sizes • Stud-mounted option increases convenience • Approval for use with copper or aluminum lugs allowing for design flexibility Ordering Information (1000 V) Amperage ordering Number DC INTERRUPT RATING WIRE RANGE Standard (Metric) 200 LFJ102001C 20 kA 250 kcmil - #6 (127 mm2 - 16 mm2) Cu/Al Solid/Stranded 31.1 N-m (275 in-lb) 400 LFJ104001C 10 kA 350 kcmil - 1/0 (177 mm2 - 55 mm2) Cu/Al Solid/Stranded 31.1 N-m (275 in-lb) 450 LFJ104501C 20 kA 500 kcmil - #4 (253 mm2 - 25 mm2) Cu/Al Solid/Stranded 42.4 N-m (375 in-lb) RECOMMENDED TORQUE Wire TYPE Ordering Information (Stud-Mounted 1000 V) amperage ordering Number SCCR RATING RECOMMENDED TORQUE MAX. Bus bar THICKNESS FUSE TERMINAL 22.6 N-m (200 in-lb) 19.66 mm (.774”) 100 LFJ101001STST 10 kA 7.3 N-m (65 in-lb) 200 LFJ102001STST 20 kA 7.3 N-m (65 in-lb) 22.6 N-m (200 in-lb) 19.66 mm (.774”) 22.6 N-m (200 in-lb) 14.10 mm (.555”) 33.9 N-m (300 in-lb) 14.48 mm (.570”) 400 LFJ104001STST 10 kA 19.2 N-m (170 in-lb) 450 LFJ104501STST 20 kA 33.9 N-m (300 in-lb) © 2012 Littelfuse Solar Products Catalog 3 BASE TORQUE BOLT SIZE TORQUE 1/4” 5/16” 30-40 lb-in 40-50 lb-in www.littelfuse.com/solar POWR-GARD® Solar Rated Products SPF Series Solar FUSES 1000 VDC • 1-30 A Specifications Voltage Rating 1000 VDC Amperage Rating 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 25, 30 Max. Interrupting Rating 20 kA; Time Constant less than 2 ms Min. Interrupting Rating 1.35x Current Rating Material Body: Melamine Caps: Copper Alloy Operating Temperature See Datasheet Approvals UL 2579 Listed (File: E339112) IEC 60269-6 (1-25 A) VDE Approved (No. 40033098) Environmental RoHS Compliant Country of Origin Mexico Ordering Information Description The SPF Solar Protection Fuse series has been specifically designed for the protection of photovoltaic (PV) systems. This family of Midget style fuses (10 x 38 mm) can safely protect PV modules and conductors from reverseovercurrent conditions. AMPERAGE 2 8 30 30 (WITH PCB TABS) As PV systems have grown in size, so have the corresponding voltage requirements. This increase in system voltage has typically been intended to minimize power loss associated with long conductor runs. Standard circuit protection devices are not designed to completely protect photovoltaic panels. However, the SPF series is UL Listed to safely interrupt faulted circuits up to this demanding voltage level. CATALOG number SPF002 SPF008 SPF030 SPF030R Web Resources Downloadable CAD drawings and other technical information: www.littelfuse.com/spf Dimensions Inches (mm) Littelfuse offers 13 ampere ratings to match specific requirements in a variety of applications. Ferrule Version PCB Version Features/Benefits • • • • Ordering number SPF002.T SPF008.T SPF030.T SPF030.HXR .06 (1.52) .02 (.51) Meets UL, IEC and VDE photovoltaic standards UL 2579 Listed 1000 VDC maximum 1-30 A ratings available 20,000 A Interrupting Rating .14 (3.56) .04 (1.02) 1.5 (38.1) • Both PCB mount and dead-front holder options available 1.53 (38.86) Applications • Combiner boxes • Inverters MOUNTING HOLE • Battery charge controllers .406 (10.31) Recommended Fuse Holders .12 (3.05) DETAIL .12 .28 (3.05) (7.11) .406 (10.31) LPHV Series...............................................................................6 LFPHV Indication Series............................................................8 www.littelfuse.com/solar .50 (12.7) 4 © 2012 Littelfuse Solar Products Catalog POWR-GARD® Solar Rated Products KLKd Series Solar Fuses 600 VDC • 1-30 A Specifications Voltage Rating: 600 VAC/VDC Amperage Rating: 1/10, 1/8, 2 /10, 1/4, 3/10, 1/2, 3/4, 1, 11/2, 2, 21/2, 3, 31/2, 4, 5, 6, 7, 8, 9,10, 12, 15, 20, 25, 30 Interrupting Ratings: AC: 100 kA DC: 1/10 -30: 10 kA (UL 2579) 1/10 -30: 50 kA (UL 248-14) Material: Body: Melamine Caps: Copper Alloy Operating Temperature: See Datasheet 1/10 -30 A UL 2579 Listed (File: E339112) Approvals: 2-25 A IEC 60269-6 (VDE Approved to Certification: 40033094) UL 248-14 Listed (File: E10480) CSA Certified (File: LR29862) (1/10 -30 A Ferrule Style Only) CE Certified Environmental: RoHS Compliant Country of Origin: Mexico Description The KLKD fuse series is fast-acting and has a high DC voltage rating. This family of Midget style fuses (10 x 38 mm) is used in solar combiner boxes and in circuits with DC fault currents up to 50,000 amperes. KLKD fuses are available in standard and board-mount configurations. As PV systems have grown in size, so have the electrical characteristic requirements. The KLKD series has been designed to meet both the UL and IEC photovoltaic fuse standards. Ordering Examples AMPERAGE 1/8 Littelfuse offers a wide range of ampere ratings to match specific requirements in a variety of applications. 1 2 8 30 (WITH PCB TABS) Features/Benefits • Designed to UL and IEC photovoltaic specifications • 1/10-30 A ratings available • 50 kA DC Voltage Interrupting Rating (1/10-30 A) • Both standard and board-mount configurations available • 1-5 A meets UL1741 GFDI requirements Part number KLKD.125 KLKD001 KLKD002 KLKD008 KLKD030R ordering number KLKD.125T KLKD001.T KLKD002.T KLKD008.T KLKD030.HXR Dimensions in inches (mm) Ferrule Version PCB Version .06 (1.52) .02 (.51) Applications .14 (3.56) .04 (1.02) • Combiner boxes • Inverters 1.5 (38.1) Recommended Fuse Holders 1.53 (38.86) LPSM Series..............................................................................6 Web Resources Downloadable CAD drawings and other technical information: MOUNTING HOLE www.littelfuse.com/klkd .406 (10.31) .50 (12.7) DETAIL .12 (3.05) .12 .28 (3.05) (7.11) .41 (10.41) © 2012 Littelfuse Solar Products Catalog 5 www.littelfuse.com/solar POWR-GARD® Solar Rated Products LPHV/LPSM Series Touch-Safe Holders Specifications Voltage Rating: Amperage Rating: SCCR Rating: Wire Range: Terminal Type: Terminal Torque: Approvals: Environmental: LPHV: 1000 VAC/VDC LPSM: 600 VAC/VDC 30 A 200,000 Aac; 20,000 Adc #8–#14 CU 75°C Pressure Plate 17.7 in-lbs LPSM: UL Recognized (File: E14721) LPSM: CSA Certified (File: 7316) LPHV: 1000 VDC Self-certified RoHS Compliant Ordering Information LPHV (1000 VDC) ORDERING NUMBER PART NUMBER Poles One Description The LPHV and LPSM 10 x 38 mm midget fuse holders have a touch-safe design to protect personnel from contact with live parts when installing and removing fuses. The compact fuse holder mounts quickly onto 35 mm DIN-rail, decreasing panel layout and assembly time. The LPHV is self-certified to stringent Littelfuse standards for applications up to 1000 VDC when used with the Littelfuse SPF 10 x 38 mm midget fuse series. The LPHV and LPSM fuse holders are available in 1, 2, 3 and 4 pole configurations or can be connected together with an assembly kit. Applications include combiner boxes and inverters. (non-ID) (non-ID) LPHV001 LPHV001Z Two LPHV002 LPHV002Z Three LPHV003 LPHV003Z Four LPHV004 LPHV004Z Poles PART # LPSM (600 VDC) PART # ORDERING # (Indicator) (non-ID) One LPSM001 LPSM001ID LPSM001Z LPSM001ZXID (non-ID) ORDERING # (Indicator) Two LPSM002 LPSM002ID LPSM002Z LPSM002ZXID Three LPSM003 LPSM003ID LPSM003Z LPSM003ZXID Four LPSM004 LPSM004ID LPSM004Z LPSM004ZXID Multi-pole Assembly Kit: CYHP001 (Kit allows up to 10 holders to be connected) Features/Benefits Recommended Fuses • LPHV is self-certified to 1000 VDC • LPSM and LPHV are UL Recognized to 600 VDC • Mountable on 35-mm Din Rail • Safe and easy installation and removal of fuses • Indication available on LPSM SPF 1000 V Solar Series.............................................................4 KLKD 600 V Solar Series............................................................5 Web Resources Downloadable CAD drawings and other technical information: www.littelfuse.com/lpsm www.littelfuse.com/lphv Dimensions in inches (mm) 0.7 (17.78) 1.40 (35.56) 2.1 (53.34) 2.8 (71.12) 2.33 (59.18) 0.5 1.67 (12.7) (42.42) 3.06 (77.72) www.littelfuse.com/solar 6 © 2012 Littelfuse Solar Products Catalog POWR-GARD® Solar Rated Products Up-LINK Remote Indication Fuse holder Specifications Voltage Rating: Amperage Rating: SCCR: Terminal Type: Terminal Torque: Wire Range: Flammability Rating Approvals Environmental: 100–600 VAC/DC 30 A max 200,000 Aac; 20,000 Adc Pressure Plate 17.7 in-lbs #8–#14 CU Stranded; #10–#14 CU Solid UL94 V-0 Class CC: UL Listed (File: E14721) Midget: UL Recognized (File: E14721) CSA Certified (File: LR 7316) RoHS Compliant Remote Indicating Circuit Output (open fuse): Max Current Sink: Terminals: Wire Range: Suggested Insulation Strip Length: Description The Littelfuse Up-LINK solid-state dead-front fuse holder series provides remote fuse status functionality without the need to incorporate proprietary network protocols. It features two separate indication modes, remote indication for immediate notification to maintenance personnel and local LED indication on the front of the holder. Open Collector 25 mA (28 VDC Max) Push In #16–#24 CU Solid/Stranded 8 mm (0.31 in) Ordering Information Poles Class CC PART NUMBER One LINK001C LINK001C.Z Two LINK002C LINK002C.Z Three LINK003C LINK003C.Z Poles 10x38 mm PART NUMBER ORDERING NUMBER One LINK001M LINK001M.Z 8.00 Two [0.31] LINK002M LINK002M.Z LINK003M LINK003M.Z All 1, 2 and 3 pole Up-LINK holders have the same footprint as their corresponding Littelfuse LPSM, LPHV, Midget and LPSC Class CC dead-front fuse holders, making design upUp-LINK Interface grades easy in existing applications. + Voltage Source 28 VDC Max Product Benefits #16 — #24 AWG • Cost effective solution for remote blown-fuse indication PLC • Easily integrates with an existing PLC or system • Utilizes reliable solid state circuitry • Meets stringent IEC and UL Touch-Safe Standards to improve worker safety Three Quick Link Daisy Chain Connector Littelfuse Quick-LINK daisy chain connectors provide optimal utilization of multiple Up-LINK remote indicating fuse holders when integrated with a PLC. These products are used to daisy chain multiple Up-LINK units together and reduce the number of PLC I/O ports required. Dimensions in mm (inches) + 17.8 [0.70] ORDERING NUMBER - Web Resources 83.0 [3.27] Downloadable CAD drawings and other technical information: 77.7 [3.06] F1 Type Ordering Number 3 Base QLINK3B.Z 9 Extender QLINK9E.Z Up-LINK Functional Schematic Up-LINK Logic S1 Poles www.littelfuse.com/uplink S1 Q 1/LED 7 OFFProducts Catalog © 2012 Littelfuse Solar ON + OFF OFF 100-600 VAC/DC F1 Q1 D1 33V www.littelfuse.com/solar 0V 01Z POWR-GARD® Solar Rated Products lFphv fuse holders 1000 V • Touch-Safe • Indication Features/Benefits • • • • • • Touch-safe design offers protection when replacing fuses Compact design 35 mm DIN Rail Mountable Available in 1-, 2-, 3- and 4-pole configurations No fuse pullers or tools required for fuse removal Indication option available Specifications Voltage Ratings Amperage Rating SCCR Rating Terminal Type Power Dissipation Fuse Type Material Approval Environmental Description The Littelfuse LFPHV fuse holder is designed to house 1000 V SPF solar and FLU 10 x 38 mm fuses. It is not designed for load break but is ideal for isolating photovoltaic module strings for maintenance and meets UL requirements for 1000 V solar fuse protection. 1000 VDC 30 A 33 kA Pressure Plate 3 W Maximum SPF and FLU midget (10 X 38 mm) Thermoplastic UL Listed (File: E345481) IEC 60269-1* IEC 60269-4* IEC 60269-2* IEC 60269-6* *with VDE verification RoHS compliant, Lead (Pb) free Dimensions Inches (mm) 1-pole 2-pole 3-pole 1.38 (35.05) .689 (17.50) TERMINAL TORQUE 2.07 (52.58) 2.76 (70.10) NUMBER OF WIRES 1 1 2† WIRE TYPE WIRE SIZE TORQUE 90˚ Cu Only 18 AWG-8 2.547 AWG 18-22 lb-in/ 2.03-2.49 N-m .157 90˚ Cu Only (4.00) 4 AWG-6 AWG 22-26 lb-in/ 2.49-2.94 N-m 18 AWG-8 AWG 18-22 lb-in/ 2.03-2.49 N-m 90˚ Cu Only (64.68) †Must be the same cross-sectioned size LFPHV L30A 1000V FPHV0001Z LFPHV 30A 1000V LFPHV0001Z LFPHV 30A 1000V LFPHV0001Z LFPHV 30A 1000V LFPHV0001Z LFPHV 30A 1000V LFPHV0001Z LFPHV 30A 1000V LFPHV0001Z LFPHV 30A 1000V LFPHV0001Z LFPHV 30A 1000V LFPHV0001Z Ordering Information LFPHV 30A 1000V LFPHV0001Z 3.19 (81.00) Catalog Number LFPHV001 LFPHV002 LFPHV003 LFPHV004 LFPHV001ID LFPHV002ID LFPHV003ID LFPHV004ID 4-pole 2.76 (70.10) 2.07 (52.58) .157 (4.00) LFPHV 30A 1000V LFPHV0001Z 2.547 (64.68) Ordering Number LFPHV0001Z LFPHV0002Z LFPHV0003Z LFPHV0004Z LFPHV0001ZXID LFPHV0002ZXID LFPHV0003ZXID LFPHV0004ZXID Poles 1 2 3 4 1 2 3 4 PACK QTY 12 6 4 3 12 6 4 3 INDICATION – – – – • • • • Web Resources LFPHV 30A 1000V LFPHV0001Z LFPHV 30A 1000V LFPHV0001Z LFPHV 30A 1000V LFPHV0001Z LFPHV 30A 1000V LFPHV0001Z LFPHV 30A 1000V LFPHV0001Z Sample requests, downloadable CAD drawings and other technical information: www.littelfuse.com/lfphv LFPHV 30A 1000V LFPHV0001Z Recommended Fuses SPF 1000 V Solar Series.....................................................4 www.littelfuse.com/solar 8 © 2012 Littelfuse Solar Products Catalog POWR-GARD® Solar Rated Products SPFR Series and SPFRHV Series SPFR 1000 VDC Solar Fuse Specifications Voltage Rating: Ampere Rating: Interrupting Rating: Fuse Type: Approvals: 1000 VDC 250, 300, 350 and 400 A 10,000 A; Time Constant less than 1 ms Fast-acting UL Recognized 1000 VDC UL 248 (UL File: 71611) CSA Certified (File: 29862) Ordering Information AMPERAGE PART Number ORDERING NUMBER 250 SPFR 250 SPFR250.X 300 SPFR 300 SPFR300.X 350 SPFR 350 SPFR350.X 400 SPFR 400 Description The SPFR series was designed to meet the growing needs of the solar industry with higher amperage and voltage requirements. It was developed specifically for solar applications, ranging from 250 A to 400 A. Web Resources Applications Features/Benefits www.littelfuse.com/spfr SPFR400.X SPFRHV 1000 VDC Fuse Block Description Dimensions in mm (inches) • DC Voltage rating meets European system requirements and North American utility scale requirements • Multiple amperage ratings • UL Class H Dimensions • Full Range Protection 298.806 ± 0.78 (11.764 ± 0.032) 189.941 ± 0.77 (7.478 ± 0.032) Dimensions in mm (inches) The Littelfuse SPFRHV fuse block is designed to house Littelfuse high amperage (250-400 A) SPFR fuses. Specifications Voltage Rating: Amperage Rating: Approvals: Environmental: Downloadable CAD drawings and other technical information: • Solar Inverters • High-amperage combiner boxes 1000 VDC 250 - 400 A UL Recognized 1000 VDC UL 4248 (File: E14721) CSA (File: 29862) RoHS Compliant Ordering Information ORDERING Number AMPERAGE SPFRHV4001ST 250 – 400 Web Resources www.littelfuse.com/spfrhv 9 © 2012 Littelfuse Solar Products Catalog Downloadable CAD drawings and other technical information: www.littelfuse.com/solar ® POWR-GARD® Solar Rated Products IDSR and LDC 600 VDC Fuses IDSR Series Class RK5 Indicator® Fuse Specifications Voltage Ratings: Amperage Rating: Interrupting Ratings: Approvals: 600 VAC/VDC 1 ⁄10 – 600 A AC: 200,000 A rms symmetrical 300,000 A rms symmetrical (Littelfuse self-certified) DC: 20,000 A Standard 248–12, Class RK5 UL Listed (File: E81895) CSA Certified (File: LR29862) AMPERAGE RATING ⁄10 1 ⁄8 15 ⁄100 2 ⁄10 1 ⁄4 3 ⁄10 4 ⁄10 1 ⁄2 1 Description The design of the IDSR features a 600 VAC/DC rating, making it ideal for DC applications such as solar photovoltaic systems. ⁄10 8 ⁄10 18 ⁄10 2 1 21⁄ 4 21⁄ 2 28 ⁄10 3 6 1 ⁄8 11⁄ 4 14 ⁄10 11⁄ 2 16 ⁄10 1 4 8 9 10 12 15 41⁄ 2 5 5 6 ⁄10 6 61⁄ 4 7 3 ⁄10 31⁄ 2 2 171⁄ 2 20 25 71⁄ 2 30 35 40 45 50 60 70 75 80 90 100 110 125 150 175 200 225 250 300 350 400 450 500 600 Note: All fuses rated 1 A and above are Indicator ® fuses. Recommended Fuse Holder Ordering Example LFR.............................................................................. 11 Web Resources AMPERAGE PART NUMBER ORDERING NUMBER 30 IDSR030 IDSR030.T Downloadable CAD drawings and other technical information: www.littelfuse.com/idsr LDC Series Class L Fuses Specifications Voltage Ratings: Amperage Rating: Interrupting Ratings: Approvals: 600 VAC/VDC 150–2000 A AC: 200,000 A rms symmetrical DC: 50,000 A Standard 248–10, Class L UL Listed 601–2000 A (File: E81895) UL Recognized 150–600 A (File: E71611) CSA Certified 150–2000 A (File: LR29862) AMPERAGE RATING 150 200 250 300 350 400 Description The 600 Vac/dc rating of the LDC series can be used on either the AC or DC side of a photovoltaic system. Web Resources 750 800 900 1000 1100 1200 1300 1350 1400 1500 1600 1800 1900 2000 Ordering Example Downloadable CAD drawings and other technical information: www.littelfuse.com/ldc www.littelfuse.com/solar 450 500 600 601 650 700 10 AMPERAGE PART NUMBER ORDERING NUMBER 150 LDC150 0LDC150.X © 2012 Littelfuse Solar Products Catalog POWR-GARD® Solar Rated Products Class R Fuse Blocks Features/Benefits Specifications • Indication offered up to 100 A versions • One hand release from DIN Rail (snap-torelease) for all non-knife blade style fuses. • Universal mounting holes for easy replacement. • Clip designs maximize electrical contact and minimize heat rise. • Standard reinforcing clips on all fuse blocks. Voltage Rating: Ampere Ratings: Approvals: Environmental: 600 V 0 – 600 A UL Listed (File: E14721) CSA Certified (File: LR73091) RoHS Compliant Recommended Fuses IDSR......................................................................................... 10 Web Resources Downloadable CAD drawings and other technical information: www.littelfuse.com/lfr 1 2 3 1 2 3 30 60 1 100 3 1 3 1 3 1 3 200 400 600 Torque 2.8 N-m (25 in-lbs) C P S Wire Range Base Snap Temp to Rating release Wire Type 6-14 AWG 10-14 AWG CU Only 10-22 AWG Indication ordering number Suffix Box Pressure Screw Lug Plate CID PID SID CID PID SID CID PID SID CID — — CID — — CID — — — — LFR601001 CID — — LFR601003 CID — — LFR602001 C — — LFR602003 C — — LFR604001 C — — LFR604003 C — — LFR606001 C — — LFR606003 C — — BASE ordering number LFR600301 LFR600302 LFR600303 LFR600601 LFR600602 LFR600603 TERMINAL Amp Rating Poles Ordering Information COVer ordering number* 130˚C • • LFH60030FBC 130˚C • • LFH60060FBC 130˚C — • LFH60100FBC 5.6 N-m (50 in-lbs) 2.8 N-m (25 in-lbs) 2-4 AWG 6-14 AWG 13.6 N-m (120 in-lbs) 2/0-6 AWG 4.5 N-m (40 in-lbs) 8 AWG 4.0 N-m (35 in-lbs) 10-14 AWG 31.1 N-m (275 in-lbs) 250 kcmil-6 CU-AL 130˚C — — — 31.1 N-m (275 in-lbs) (2) 350 kcmil-1/0 CU-AL 130˚C — — — 42.4 N-m (375 in-lbs) (2) 500 kcmil-4 CU-AL 130˚C — — — CU-AL CU-AL Solid/ Stranded Note: Reinforcing springs standard on all Class R fuse blocks. *Covers sold individually. One cover needed for each pole. Dimensions inches (mm) 600 V 30 A 600 V 60 A 600 V 200 A 600 V 100 A 43.8 [1.73] 21.5 [.85] 19.2 [.76] 16.8 [.66] 6.4 [.25] 47.6 [1.87] 56.0 [2.20] 118.6 [4.67] 127.1 [5.00] 166.7 [6.56] 38.4 [1.51] 32.4 [1.28] 73.1 [2.88] 29.8 [1.17] 51.6[.78] [2.03] 19.9 41.1 [1.62] 11.4 [.45] 55.2 R3.4 [.13] TYP R2.6 [.10] TYP 74.2 [2.18] [2.92] 134.6 [5.30] 184.2 [7.25] �������� ����������� ����� ��� ���� ���������� � 145.3 [5.72] 125.7 [4.95] 107.0 [4.21] 52.5 [2.07] 79.8 [3.14] 61.0 [2.40] 20.7 [.82] 53.4 [2.10] 33.8 [1.33] 107.9 [4.25] 19.6 [.77] 86.4 [3.40] 15.0 [.59] 75.9 [2.99] 12.7 [.50] 66.7 66.0 [2.60] R3.4 [.13] TYP [2.63] 22.2 [.88] 22.9 [.90] 15.9 [.63] 76.2 [3.00] 63.5 [2.50] 52.3 [2.06] 84.2 [3.32] 64.6 [2.54] R3.4 [.13] TYP .2 THRU .5 .5 600 V 400 A Ø.3 THRU Ø.7 .4 Ø.3 THRU Ø.8 .4 172.8 [6.80] 160.1 [6.31] 228.6 [9.00] 368.3 [14.50] 192.0 [7.56] 244.3 [9.62] © 2012 Littelfuse Solar Products Catalog SPECIFICATIONS: 11 AMPERE RATING: 30 AMPERES INTERRUPT RATING: 10kA TERMINAL TYPE: BOX LUG �� ��������� 114.3 [4.50] 95.3 [3.75] 79.4 [3.13] 15.9 [.63] 34.9 [1.38] 19.1 [.75] 114.3 [4.50] .3 THRU .8 .4 177.8 [7.00] 266.7 [10.50] 84.4 [3. 15.9 [.63 250.8 [9.88] .3 THRU .6 .4 .3 THRU .8 .4 254.0 [10.00] 431.8 [17.00] ��������������������������������� ��� VOLTAGE RATING: 600V 95.3 [3.75] 146.1 [5.75] 222.3 [8.75] 273.1 [10.75] 600 V 600 A 88.9 [3.50] 73.0 [2.88] ������������������������������������������ ���������������������������������������������������� ������������������������������������������������� ����������������������������� ����������������������������������� ���������������������������������������� ������������������������������������������ ����������������������������������������� ���������������������������� ������ � ���������� �������������������� ����������������� ��� �������� ��������� ��������� www.littelfuse.com/solar �������������������� ������������������ ������������������� POWR-GARD® Solar Rated Products bus bar system POWR-BAR Distribution Specifications Voltage Ratings Current Ratings 600 VAC/DC 1000 VDC* Cross section (mm2) END FED CENTER FED SCCR Conductor Pitch Approvals Environmental Description 18 mm 2 80 A 160 A 25 mm 2 100 A 200 A 10 kA, 100 kA† Copper 17.8 mm UL508 (File: E328654) RoHS Compliant, Lead (Pb) free *1 Phase 18 mm2 rated 1000 VDC up to 160 A when center fed 1 Phase 25 mm2 rated 1000 VDC up to 200 A when center fed † When protected directly upstream by Class J 175 amperes max (18 mm2 bus bar) and Class J 200 amperes max (25 mm 2 bus bar). A key objective for panel designers is safe distribution of power to multiple fuse holders in a compact design. The Littelfuse UL508 bus bar system eliminates most wire terminations in a timesaving package. A power distribution block and associated conductors are no longer needed to feed multiple POWR-SAFE fuse holders. Ordering Information 1 PHASE, 18 mm2 Features/Benefits Ordering Number • Touch-safe design offers protection when replacing fuses • Compact design • 35 mm DIN Rail Mountable • Available in one and three phase configurations • No fuse pullers or tools required for fuse removal • Can be cut down to optimal size 1 PHASE, 25 mm2 LENGTH (mm) Poles 50 1ph3p25mm 3 50 1ph6p18mm 6 104 1ph6p25mm 6 104 1ph9p18mm 9 155 1ph9p25mm 9 155 1ph12p18mm 12 208 1ph12p25mm 12 208 1ph15p18mm 15 270 1ph15p25mm 15 270 1ph57p18mm 57 1009 1ph57p25mm 57 1009 Ordering Number Downloadable CAD drawings and other technical information: www.littelfuse.com/busbar LENGTH (mm) 3 3 PHASE, 25 mm2 3 PHASE, 18 mm2 Web Resources Poles 1PH3P18mm Recommended Fuse Holders LPSM (600 V)...................................................................... 6 LPHV (1000 V)..................................................................... 6 Ordering Number LENGTH (mm) Poles Ordering Number Poles LENGTH (mm) 3ph6p18mm 6 104 3ph6p25mm 6 104 3ph9p18mm 6 158 3ph9p25mm 9 158 3ph12p18mm 12 214 3ph12p25mm 12 214 3ph15p18mm 15 266 3ph15p25mm 15 266 3ph57p18mm 57 1009 3ph57p25mm 57 1009 End caps are standard with all 3 phase configurations except 57-pole meter length. End caps aren’t needed for the 1 phase configurations from the factory or if the copper bus is trimmed per the supplied instructions. Power feed lugs and protective covers are extra. Accessories Power Feed Lug Part Number Ampere Rating Wire Torque www.littelfuse.com/solar BB18 115 A #10 – 1/0 AWG copper 50 lb-in Pole Protective Covers Endcaps Part Number 5 covers Part Number: EDCP42 Part Number: EDCP7 CTPT5 12 for Single Phase 50 piece bag for Three Phase 50 piece bag © 2012 Littelfuse Solar Products Catalog POWR-GARD® Solar Rated Products Protection Relays & Controls SE-601 DC Ground Fault Monitor Specifications IEEE Device Numbers DC Overcurrent Relay (76G) Input Voltage See ordering information Dimensions H 75 mm (3.0"); W 55 mm (2.2"); D 115 mm (4.5") Trip Level Settings 1-20 mA Trip Time Settings 0.05 -2.5 s Output Contacts Isolated Form A and Form B Contact Operating Mode Selectable fail-safe or non-fail-safe Test Button Local Reset Button Local and remote Analog Output 0-5 V Conformally Coated Consult factory Approvals CSA certified, UL Listed, CE (European Union) Warranty 5 years Mounting DIN, Surface (standard) Panel (with PMA-55 or PMA-60 adapter) Description The SE-601 is used to detect harmful ground faults in ungrounded photovoltaic systems, and limit fault current to 25 mA or less. This relay is typically installed in the controls enclosure of the central inverter. In addition, a PGG series Ground-Reference Module is mounted between the positive and negative DC bus inside of a central inverter. Ordering Information Ordering Number SE-601-OD SE-601-OT SE-601-OU CONTROL POWER 24 Vdc 48 Vdc 120/240 Vac/Vdc EL731 Sensitive Earth Leakage Relay Description The EL731 is a microprocessor-based AC/DC Sensitive Earth-Leakage Relay that offers complete coverage for all frequencies from 0-15,000 Hz. Two CT’s are required for the entire frequency range, or one CT can be used for only lowor high-frequency detection. An RTD/PTC sensor input allows over-temperature protection. The EL731 offers metering capabilities, password-protected alarm and trip settings and optional network communications. It is used to add low-level ground-fault protection to variable-speed drives, and to dc currents. Specifications Ordering Information Ordering Number EL731-00-00 EL731-01-00 EL731-02-00 EL731-03-00 EL731-04-00 EL731-10-00 EL731-11-00 EL731-12-00 EL731-13-00 EL731-14-00 EL731-20-00 EL731-21-00 EL731-22-00 EL731-23-00 EL731-24-00 © 2012 Littelfuse Solar Products Catalog IEEE Device Numbers AC ground fault (50G/N, 51G/N), DC ground fault (79G), PTC overtemperature (49), RTD temperature (38, 49) Supply Voltage 120/240 Vac/Vdc, 24 Vdc, 48 Vdc/24 Vac Trip Level Settings 30-5,000 mA AC and DC Alarm Level Settings 30-5,000 mA AC and DC Trip Delay 0.05-2 s Output Contacts 3 Form C (programmable) Terminals Plug-in, wire clamping, 24 to 12 AWG (0.2-2.5 mm2) Communications Ethernet/IP, DeviceNet™, Profibus ®, Modbus (optional) Analog Output 4-20 mA (selectable 0-5 A or 0-100% trip-level setting) Conformal Coating Standard feature DimensionsH 48 mm (1.9”); W 96 mm (3.8”); D 129 mm (5.0”) Approvals UL Listed, CSA Warranty 5 years Mounting Panel; Surface and DIN Control power 120/240 Vac/Vdc 120/240 Vac/Vdc 120/240 Vac/Vdc 120/240 Vac/Vdc 120/240 Vac/Vdc 48 Vdc & 24 Vac 48 Vdc & 24 Vac 48 Vdc & 24 Vac 48 Vdc & 24 Vac 48 Vdc & 24 Vac 24 Vdc 24 Vdc 24 Vdc 24 Vdc 24 Vdc 13 www.littelfuse.com/solar POWR-GARD® Solar Rated Products TVS (transient Voltage Suppression) Diodes What Are Voltage Transients? Integration of Transient Voltage Suppression (TVS) components within solar system designs help to prevent the damaging effects of transient events, and assure compliance to safety and reliability standards. Voltage transients are unwanted short duration surges of electrical energy. They may result from the sudden release of previously stored energy, and can come from internal and external sources. If the voltage magnitude of the transient is large enough, circuit component damage or malfunction of the circuit may result. TVS and Solar Inverter Protection A PV solar system component particularly vulnerable to transient voltage effects is the power inverter. Its range of functions and direct connection to other system components enables vulnerability of transient voltage transfer. For example: Transients can occur either repeatedly or as random impulses. Repeatable transients are frequently caused by the operation of other system components, such as motors, generators or the switching of reactive circuit components. Random transients, are often caused by lightning, electrostatic discharge (ESD), and other outdoor environment events. Source Voltage Current Rise-Time Duration Lightning 25 kV 20 kA 10 µs 50 ms Load Switching 600 V 500 A 50 µs 500 ms 1 kV 300 kV 20 ns 1 ms 15 kV 30 A 1–5 ns 100 ns Electromagnetic Pulse (EMP) Electrostatic Discharge (ESD) www.littelfuse.com/tvsdiode • Conversely, transients originating from the outside utility power grid may pass through the main circuit panel and cabling to the inverter. • Startup of motorized equipment (such as power tools, tracking systems, fan motors) enable vulnerabilities produced by repeat load changes. • Electrostatic discharge events generated internal and external to the system may pass between the inverter and sensitive electronic control equipment. Package Type Peak Pulse Power Range 2 (PPP) Operating Temperature RoHS Reverse Standoff Voltage (VR) HF TVS Diodes are used to protect semiconductor components from high-voltage transients. Their p-n junctions have a larger cross-sectional area than those of a normal diode, allowing them to conduct large currents to ground without sustaining damage. Littelfuse supplies TVS Diodes with peak power ratings from 400 W to 15 kW, and reverse standoff voltages from 5 V to 512 V. Lightning-induced transient events may pass through the solar array and outdoor cabling to the inverter (and other sensitive electronic equipment in the path). For these reasons, it is important to build surge withstand ability within the inverter as well at locations before damaging transients may reach sensitive equipment. Series Name1 Transient Voltage Suppression (TVS) Diodes • 5.0-440 400 W • • 5.8-495 400 W • • SACB 5.0-50 500 W • • SMBJ 5.0-440 600 W • • 5.8-495 600 W • • 1KSMB 5.8-136 1000 W • • SMCJ 5.0-440 1500 W • • 1.5SMC 5.8-495 1500 W • • 5.0-170 3000 W • • 12-170 (unidirectional) 12-45 (bidirectional) 5000 W • • Surface Mount - Standard Applications (400-5000 W): SMAJ DO-214AC P4SMA DO-214AA P6SMB DO-214AB SMDJ 5.0SMDJ -85° to +302° F (-65° to +150° C) Axial Leaded - Standard Applications (400-5000 W): P4KE DO-41 5.8-495 400 W • • SA DO-15 5.0-180 500 W • • SAC DO-15 5.0-50 500 W • • P6KE DO-15 5.8-512 600 W • • 1.5KE DO-201 5.8-495 1500 W • • LCE DO-201 6.5-90 1500 W • • 3KP P600 5.0-220 3000 W • • 5KP P600 5.0-250 5000 W • • • • • • -85° to +302° F (-55° to +175° C) Axial Leaded - High Power: 15KPA P600 17-280 15000 W 20KPA P600 20.0-300 20000 W 30KPA P600 28.0-288 30000 W AK6 Radial Lead 58-430 NA AK10 Radial Lead 58-430 NA -85° to +302° F (-55° to +175° C) -67° to +347° F (-55° to +150° C) • • • • • • (1) Detailed information about most product series listed here can be found on our web site by entering www.littelfuse.com/series/(Series Name).html (2) For Maximum Clamping Voltage (VC) please refer to electrical characteristics table within each series data sheet www.littelfuse.com/solar 14 © 2012 Littelfuse Solar Products Catalog POWR-GARD® Solar Rated Products Overvoltage Suppression VARISTORS Protection Application and Needs: Remote Monitor / Admin 5 Ethernet Router AC Grid 4 1 SYNC Battery Bank Companion Solution: • AC output may use MOV in less exposed environments Series Name1 Operating Operating Peak Peak OpERATING TEMP. AC Voltage DC Voltage Current Energy 2 Range Range Range Range (A) Range (J) Mount/ Form Factor Agency Approvals Disc Size RoHS Example: Grid-Connected Solar Inverter Configuration CECC Inverter Driver µP Solutions: • AC Input: Fuse / MOV • DC Input: DC-rated fuse / Unidirectional TVS. • AC Output: Fuse / TVS • Outside Ethernet: SEP series SIDACtor® device • Local Ethernet: MLV / SPA VDE 2 Threats: • Power surges on AC or DC Input and AC Output • ESD threats through the communication network 3 DC/AC INVERTER CSA Battery Charge Controller Description: Microprocessor-controlled inverter with the AC output synchronized to the AC grid prevents over-discharging of the battery. UL PV Array • • • • • Radial Leaded MOV: Varistor Products Varistors possess characteristics that divert transient currents away from sensitive components. Littelfuse offers a range of options including protection of higher energy applications. www.littelfuse.com/varistor TMOV®/ iTMOV® 115-750 600010000 35-480 14, 20, 34 mm TMOV® 25S 115-750 20000 170-670 25 mm UltraMOVTM 130-625 170-825 175010000 12.5-720 UltraMOVTM 25S 115-750 150-970 22000 230-890 C-III 130-660 3500-9000 40-530 LA 130-1000 175-1200 1200-6500 11-360 ZA 4-460 5.5-615 50-6500 0.1-52 -55 to +85°C Radial Leaded • 7, 10, 14 20, 25 mm • • • • • 25 mm • • • • • • • • • • • • • • • • 10, 14, 20 mm 7, 10, 14 20 mm 5, 7, 10, 14, 20 mm • • Industrial High Energy Terminal MOV: BA/BB 130-2800 175-3500 50000 70000 450-10000 DA/DB 130-750 175-970 40000 270-1050 HA 130-750 175-970 25000 40000 200-1050 TMOV34S® 115-750 40000 235-1050 HB34, HG34, HF34 130-750 175-970 40000 270-1050 DHB34 250-2800 330-3500 20000 70000 330-10000 CA 250-2800 330-3500 20000 70000 330-10000 Screw / Clip Terminals 60 mm • • 40 mm • • 32, 40 mm • -55 to +85°C Industrial Packaged Radial Leads Bare Disc 34 mm • 34 mm • • • • • • 34 mm • 60 mm • (1) Detailed information about most product series listed here can be found on www.littelfuse.com/series/(Series Name).html (2) Not an applicable parameter for Crowbar devices © 2012 Littelfuse Solar Products Catalog 15 www.littelfuse.com/solar POWR-GARD® Solar Rated Products POWR-BLOKS™ Distribution Blocks Ordering Example Distribution Block Example Part No. Splicer Block Example Part No. Note: Aluminum blocks can use copper or aluminum wire; copper blocks can only use copper wire. More configuration options are available online. Web Resources Downloadable CAD drawings and other technical information: www.littelfuse.com/ld www.littelfuse.com/ls Dimensions in inches (mm) LX2XXX-XDIN Description 2.42 [61.5] POWR-BLOKS power distribution blocks offer a safe, convenient way of collecting or distributing power. The LX2xxx-xDIN series offers integral DIN-Rail mount and an optional hinged safety cover. Applications • Solar string • Array combiner boxes • Inverters Connectors The POWR-BLOKS use box lug connectors that are designed for a single or solid class B or C stranded conductor. Specifications Voltage Rating: .97" Amperage Rating: [25] Material: 3.38" Connector: (85.7) 4.00" [102] Flammability Rating: Approvals: Environmental: .31" [7.9] 1.94" 1.94" 5.00" 3.47" [49.3] 1.17" [29.7] .31" [7.9] 3.47" 2.61" [49.3] [127.0] [88.1] 600 V .97" 1.53" [38.9] Based on NEC® Table 310.16,(25) using 75°C copper wire Phenolic rated at 150°C and Thermoplastic rated at 125°C 3.38" Standard: Highly conduc tive aluminum, tin plated (85.7) Copper: Highly conductive copper, tin plated 4.00" [102] UL94 V-0 UL Recognized (File: E171395) CSA Certified (File: LR700111) RoHS Compliant 1 POLE www.littelfuse.com/solar 1 POLE LX3XXX .97".97" 1.53" [25] [25] 4.00" 1.17" .31" [7.9] 4.00" 4.00" 16 [38.9] [25] 3.38" (85.7) 4.00" .31" [7.9] 1.17" [29.7] 1.17" [29.7] [85.7] [101.6] [102] POLE 3 1POLE 2 POLE .97" 1.53" 3.38" (85.7) [102] [101.6] [29.7] (25) 3.38" 3.38" [85.7] .97" [38.9] [88.1] [66.2] .31" [7.9] 3 POLE 1.17" [29.7] 2 POLE © 2012 Littelfuse Solar Products Catalog .31" [7.9] ADDE Corporate Information Corporate Headquarters Littelfuse, Inc. 8755 West Higgins Road, Suite 500 Chicago, IL 60631 USA 773 628 1000 www.littelfuse.com Sales and Technical Support • United States, Canada and Mexico • Hong Kong, China Phone: 800 TEC FUSE (800 832 3873) Phone: +852 2810 5099 (217 531 3120) Fax: +852 2810 5500 Fax: 800 522 7697 • Beijing, China Phone: +86 10 84549408 • Brazil Fax: +86 10 84549405 Phone: +55 11 4427 6261 Fax: +55 11 4468 1356 • Shanghai, China Phone: +86 21 2327 6000 • Europe Fax: +86 21 5383 7476 Electrical and Electronic Products Phone: +49 4244 819149 • Shenzhen, China Fax: +49 421 20 31080 Phone: +86 755 8207 0760 Fax: +86 755 8207 0759 Automotive Products Phone: +49 4244 819142 Fax: +49 4244 819139 © 2012 Littelfuse Solar Products Catalog 17 • Singapore Phone: +65 6885 9188 Fax: +65 6885 9196 • Japan Phone: +81 45 478 1088 Fax: +81 45 478 1089 • South Korea Phone: +82 2 6000 8600 Fax: +82 2 6000 8655 • Taiwan Phone: +886 2 8751 1234 Fax: +886 2 8751 1177 www.littelfuse.com/solar Littelfuse® POWR-GARD® products and technical resources enhance the productivity and safety of electrical systems. POWR-GARD offers current-limiting fuses to decrease Arc-Flash exposure, fuse holders and fuse covers to reduce incidental contact, protection relays to safeguard equipment and safety resources to improve safety. g Fuses and Fuse Holders g Solar-Rated Products g Relays and Controls g Remote Indication g Safety Resources WWW.LITTELFUSE.COM /SOLAR For 35 years Littelfuse POWR-GARD has helped OEM engineers, consulting engineers and end users select the right products to protect critical electrical equipment—supported by our full line of product catalogs and reference materials. POWR-GARD Catalog Littelfuse offers a complete circuit protection portfolio of industrial power fuses, including time-saving indication products for an instant visual blown-fuse identification, even on de-energized systems. Relays & Controls Catalog The comprehensive line of electronic and microprocessorbased protections relays and controls safeguard equipment and personnel to prevent expensive damage, downtime or injury due to electrical faults. Up-LINK™ Product Brochure Up-LINK is a patented remote indication technology, incorporated in a growing number of fuse holders and other products that improve productivity by providing necessary information to monitoring sites. Varistor Catalog Littelfuse offers industrial Metal Oxide Varistors (MOVs) to protect against transient voltage surges. OEM Design Brochure Design engineers can work with Littelfuse POWR-GARD to add value to their products with standard or custom circuit protection solutions. Littelfuse POWR-GARD is in the App Store! Our free Littelfuse Catalogs and Literature App keeps our products and technical resources at your finger tips, wherever you are. Find products and technical specifications you need, quickly and easily! ©May, 2012 Littelfuse, Inc. Printed in USA. Specifications, descriptions and illustrative material in this literature are as accurate as known at the time of publication, but are subject to changes without notice. Visit www.littelfuse.com for the most up-to-date technical information. FORM NO. PF140-C Revision D