LPS Series Shunt-Trip Disconnect Switch OPERATIONS & MAINTENANCE MANUAL Overview The Littelfuse POWR-Switch® LPS series disconnect switch is an integrated power controller designed to meet the requirements of NFPA®70 (National Electrical Code®), NFPA 72 (National Fire Alarm Code®), ANSI/ASME A17.1 (Safety Code for Elevators and Escalators), NFPA 13 (Installation of Sprinkler Systems) and other state and local jurisdiction requirements with regard to AC power for elevators. The Littelfuse POWR-Switch LPS series disconnect switch may be ordered in 30 A, 60 A, 100 A, 200 A or 400 A configurations, for 208, 240, 480 or 600 VAC (60 Hz), 3 or 4 wire systems. The Littelfuse POWR-Switch LPS series disconnect switch may be configured for use as Service Equipment with the addition of a 2-port ground lug and the appropriate label per NEC 230.66 (option S). Enclosures are available for The Littelfuse POWR-Switch LPS series disconnect switches which meet NEMA 1, NEMA 3R, NEMA 4/4X and NEMA 12 standards. The Littelfuse POWR-Switch LPS series disconnect switch is designed to interrupt the source of incoming AC power for a single cable or hydraulic elevator, upon a signal from the Fire Alarm Control Panel (FACP). This is primarily to minimize the risk of electric shock, and to prevent impact to the mechanical safety features of an elevator, caused by water released from the fire sprinkler system. 800.TEC.FUSE | littelfuse.com 1 of 13 © 2015 Littelfuse POWR-GARD® Products Rev: 051815 LPS Series Shunt-Trip Disconnect Switch LPS SERIES POWR-SWITCH Shunt Trip Disconnect Switch Specifications (POWR-Switch) Supply Voltage Rating* 208 V, 240 V, 480 V Ampere Range 30 A, 60 A, 100 A, 200 A, 400 A Interrupting Rating 200 kA Enclosures NEMA 1 (standard) NEMA 3R, NEMA 4, NEMA 12 (optional) ApprovalsUL Listed (File: E219511) *Contact factory for 600 V options. Specifications (Shunt Trip) Voltage Rating Max Inrush Max On time Momentary Inrush 120 V, 60 Hz 4A 1.5 cycles 140 VA Features/Benefits • Pre-engineered single unit, which makes procurement easier than systems with multiple components • Reduces labor costs up to 66% and total installation costs by over 30% • Pre-installed UL listed Class J fuse holder – unique Class J size eliminates the need for any rejection type fuse clips • Optional features offer flexibility for a variety of applications Description The Littelfuse® POWR-Switch provides a simple and economical solution for applications that require selective coordination and shunt trip capabilities. • Control power terminal block Utilizes Class J time-delay fuses that are easily coordinated with other system overcurrent devices. The shunt trip capability allows the POWR-Switch to meet the ANSI/ASME standard that requires power to be automatically disconnected before water is turned on by the fire safety system. • Pre-wired control circuits lower installation time • UL Listed package • Cu and AI wire rated • L ockable operating handle meets all code and safety requirements (Accepts up to 3 locks) • Every unit is fully tested before delivery Options Applications • Control power transformer with fuses and blocks • Elevator circuits • Data processing rooms • Building emergency systems • Fire safety interface relay • Key to test switch • Pilot light ”On” Web Resources • Isolated neutral lug Download technical information: littelfuse.com/lps • M echanical interlock auxiliary contact for hydraulic elevators with automatic recall (5 amp 120 Vac rated) • Fire alarm voltage monitoring relay • Option to bypass alarm when performing maintenance (-AZ option) • XPress-Ship™ service offers 48 Hours direct shipment service on select fully loaded LPS POWR-Switches 800.TEC.FUSE | littelfuse.com 2 of 13 © 2015 Littelfuse POWR-GARD® Products Rev: 051815 LPS Series Shunt-Trip Disconnect Switch LPS SERIES POWR-SWITCH Shunt Trip Disconnect Switch Ordering Information Complete catalog numbers consist of switch catalog numbers and the desired options. See example below. Example Catalog Number from Desired Options LPS1 T20 R1 K G N1 BF3 U – AZ = Littelfuse Catalog Number LPS1T20R1KGN1BF3U-AZ K Red R Green G 100 A N1 2 NO & 2 NC LPS1* 100 A 480 V T48 White W 200 A N2 400 A N4 LPS2* 200 A 30–60 A N6 1 NO & 1 NC OPTION CODE 120 V OPTION CODE R2 AZ OPTION (BYPASS FIRE ALARM DURING MAINT. TEST) OPTIONAL RATING 24 VDC Coil — OPTION CODE T20 T24 120 VAC Coil R1 RATING LPS3* 30 A 208 V LPS6* 60 A 240 V OPTION CODE OPTIONAL RATING OPTIONAL OPTION CODE REQUIRED RATING OPTION CODE RATING OPTIONAL OPTION CODE OPTIONAL RATING OPTIONAL OPTIONAL ENCLOSURES OPTION CODE REQUIRED ISOLATED NEUTRAL LUG FIRE ALARM SHUNT TRIP VOLTAGE MONITORING RELAY RATING REQUIRED KEY TO PILOT LIGHT TEST SWITCH “ON” MECHANICAL INTERLOCK AUX. CONTACT FOR HYDRAULIC ELEVATORS W/ AUTOMATIC RECALL (5 A ,120 VAC) OPTION CODE RATING BASE CATALOG # REQUIRED CONTROL POWER FIRE SAFETY TRANSFORMER INTERFACE RELAY STD. 100VA WITH (3 PDT, 10 A, 120 V) PRI & SEC FUSE (120 V SEC.) RATING LITTELFUSE SWITCH CATALOG NUMBER A 1-Pole F1 NEMA 3R U – B 3-Pole F3 NEMA 4 Y – NEMA 12 Z – AZ – LPS4* 400 A – *Part Numbers: Any voltage can be paired with any amperage. Options can be any combination but the ratings must match the option code. Not all options are required. Contact factory for 600 V control power transformer option. Note: When ordering - desired options must be listed in the order shown above. Typical options include Control Power Transformer, Fire Safety Interface Relay, Mechanical Interlock Auxiliary Contact and Fire Alarm Voltage Monitoring Relay. Dimensions of Enclosure CATALOG SERIES AMPERE RATING LPS3 NEMA 1 DIMENSIONS NEMA 3R DIMENSIONS NEMA 4, 12 DIMENSIONS LUG SIZE 30 24”H x 20”W x 9”D 24”H x 20”W x 8”D 24”H x 20”W x 10”D #14 - #8 AL or CU LPS6 60 24”H x 20”W x 9”D 24”H x 20”W x 8”D 24”H x 20”W x 10”D #14 - #2 AL or CU LPS1 100 24”H x 20”W x 9”D 24”H x 20”W x 8”D 24”H x 20”W x 10”D #8 - 1/0 AL or CU LPS2 200 30”H x 20”W x 9”D 30”H x 24”W x 8”D 30”H x 20”W x 10”D #6 - 250kcmil AL or CU LPS4 400 48”H x 36”W x 11”D Contact Factory Contact Factory 3/0 AL or CU Note: Over-size enclosures used to accommodate control power transformer, interface relay and terminal blocks. XPress-Ship™ US Only Littelfuse XPress-Ship™ service offers 48 Hours** direct-shipment service on select fully-loaded LPS POWR-Switch to meet your urgent system requirements on time. XPress-Ship™ switches include three JTD_ID Series fuses rated at the device’s maximum ampacity. AMPERE RATING VOLTAGE RATING CATALOG NUMBER XPress-Ship™ ORDERING NUMBER 60 A 480 V LPS6T48R1KGN6BF3-AZ XPS6T48R1KGN6F3-AZ* 100 A 480 V LPS1T48R1KGN1BF3-AZ XPS1T48R1KGN1F3-AZ* 100 A 480 V LPS1T48R1KGN1BF3 XPS1T48R1KGN1BF3 200 A 208 V LPS2T20R1KGN2BF3-AZ XPS2T20R1KGN2F3-AZ* 200 A 480 V LPS2T48R1KGN2BF3 XPS2T48R1KGN2BF3 *AZ option includes B & F3 options. **XPress-Ship™ 48 hour service requires ordering from XPress-Ship Ordering Numbers shown above and is subject to a maximum of any combination of three switches per customer order. XPress-Ship service offers 48 hour shipment from the factory through standard ground transportation. For expedited delivery, contact your local Littelfuse Representative. 800.TEC.FUSE | littelfuse.com 3 of 13 © 2015 Littelfuse POWR-GARD® Products Rev: 051815 LPS Series Shunt-Trip Disconnect Switch OPERATION & MAINTENANCE Shunt-Trip Operation The disconnecting means is a shunt-trip operated switch. The control power source for the shunt-trip operator is a 120 Vac supply originating in the Littelfuse POWR-Switch LPS Series disconnect. Current to the shunt-trip device is switched by an isolation relay, which is in turn controlled by the FACP. The control signal may be either 24 Vdc from the FACP (option R2) or a “dry” contact closure in the FACP (option R1). In the case of a “dry” contact closure, the sensing voltage is 120 VAC originating in the Littelfuse POWR-Switch LPS Series disconnect. CAUTION: When using the “dry” contact closure, option 1, DO NOT supply 120 Vac from the FACP as equipment damage or personnel injury may occur. A key test option (option K) is available to test the shunt-trip circuit. Supervisory Indication Additionally, an optional separate relay can be specified to monitor the 120 Vac control power source in the Littelfuse POWR-Switch LPS Series disconnect. This relay (option FR) is used to provide supervisory indication of “Control Power Available” as required by NFPA 72 Section 6.15.4.4. Fuse Table POWR-SWITCH VOLTAGE/ TRANSFORMER TYPE PRIMARY FUSES (2) FUSE TYPE FUSE RATING 208/120 240/120 480/120 600/120 KLDR001 KLDR500 KLDR400 KLDR250 SECONDARY FUSE (1) FUSE TYPE FUSE RATING 1 1/2 4/10 1/4 FLM1.12 FLM1.12 FLM1.12 FLM1.12 1-1/8 1-1/8 1-1/8 1-1/8 Other Options Optional features include contact closure for control of auxiliary power, i.e. battery lowering/door opening system (options A and B). Support for state of Arizona, Oregon and Texas requirements to prevent “nuisance” fire alarms by over-riding the “Control Power not Available” signal when the Littelfuse POWR-Switch LPS Series disconnect is manually (intentionally) turned off, and distinctive signaling for ON-OFF-TRIPPED conditions (option AZ). All Littelfuse POWR-Switch LPS Series disconnect switches are UL-Listed and designed for safe access by qualified personnel. When maintenance or shutdown service is required, no energized parts are exposed inside the enclosure when the disconnect switch is manually turned to the OFF position. For proper maintenance safety precautions, always turn off incoming power to the Littelfuse POWR-Switch LPS Series switch when possible. When servicing any live electrical equipment, always wear appropriate personal protective equipment. Power Wiring Torque Specifications CHARACTERISTICS LPS3 LPS6 LPS1 LPS2 LPS4 Amps AWG MCCB Mfr. MCCB Catalog No. MCCB Lug Type MCCB Lug Torque (in-lbs) Fuse Block Mfr. Fuse Block Catalog No. Fuse Lug Torque (in-lb) Neutral Lug Mfr. Neutral Lug Catalog No. Neutral Lug Torque (in-lbs) Ground Lug Mfr. Ground Lug Catalog No. Ground Lug Torque 30 10 ABB S3H150DBBS4 K4TB 50 in-lb* LITTELFUSE LFJ60030-3 25 in-lb† LITTELFUSE LS21211 35 in-lb† PANDUIT LAMA 1/0-14-Q 35 in-lb‡ 60 6 ABB S3H150DBBS4 K4TB 50 in-lb* LITTELFUSE LFJ60060-3 45 in-lb† LITTELFUSE LS21211 45-120 in-lb† PANDUIT LAMA 1/0-14-Q 45 in-lb‡ 100 3 ABB S3H150DBBS4 K4TB 50 in-lb* LITTELFUSE LFJ60100-3 120 in-lb† LITTELFUSE LS21211 120 in-lb† PANDUIT LAMA 1/0-14-Q 50 in-lb‡ 200 3/0 ABB S3H225DDDS4 K4TD 200 in-lb* LITTELFUSE LFJ60200-3 275 in-lb† LITTELFUSE LS31231 275 in-lb† PANDUIT LAMA 250-56-Q 375 in-lb‡ 400 (2) 3/0 ABB S5H400DWS4 K5TG 275 in-lb* LITTELFUSE LFJ60400-3 275 in-lb† LITTELFUSE LS455712 500 in-lb† PANDUIT LAMA-350-38-Q 375 in-lb‡ Note: Torque specs apply only to wire compression screws. Other requirements may exist for attachment of lugs and accessories to these devices. See manufacturer data. * ABB.com † Littelfuse Device nameplate data ‡ Panduit, “Torque Chart for Aluminum Mechanical Connectors” 800.TEC.FUSE | littelfuse.com 4 of 13 © 2015 Littelfuse POWR-GARD® Products Rev: 051815 LPS Series Shunt-Trip Disconnect Switch OPERATION & MAINTENANCE R1 Wiring Diagram (No AZ Option) 800.TEC.FUSE | littelfuse.com 5 of 13 © 2015 Littelfuse POWR-GARD Products ® Rev: 051815 LPS Series Shunt-Trip Disconnect Switch OPERATION & MAINTENANCE R2 Wiring Diagram (No AZ Option) 800.TEC.FUSE | littelfuse.com 6 of 13 © 2015 Littelfuse POWR-GARD® Products Rev: 051815 LPS Series Shunt-Trip Disconnect Switch OPERATION & MAINTENANCE R1 Wiring Diagram (With AZ Option) POWRSWITCH SCHEMATIC R1-AZ TERMINOLOGY LINE -Connection to the input source of power. LOAD -Connection to the protected circuit load. DISCONNECT -Main switch that disconnects power via manual, or shunt trip. CONTROL TRANSFORMER -Converts the incoming line voltage to 120vac. -An optional door pilot light used to indicate PL the presence of control voltage. Fire Alarm Supervisory Relay -Optional relay (FR) for monitoring control voltage. N.O.F.A. -Abbreviation for Normally Open Fire Alarm (contact closure initiates shunt trip). Fire Alarm Isolation Relay -Provides fire alarm initiating circuit isolation. KEY TEST -Optional door key-switch used for testing, to trigger a shunt trip disconnect. SHUNT TRIP -Mechanism, triggered by CR closure, that opens the disconnect. SW -Internal to the shunt trip mechanism that opens when the switch is tripped. 120vac IS PROVIDED FROM WITHIN THE POWRSWITCH. ONLY A CONTACT CLOSURE IS NEEDED. OPTION B: Auxiliary contacts are mechanically interlocked to the main switch contacts. These auxiliary contacts follow the main switch contacts. OPTION AZ: These contacts indicate the presence or absence of shunt control voltage. However, if the main switch is turned off, these contacts will indicate that shunt control voltage is present. 800.TEC.FUSE | littelfuse.com 7 of 13 © 2015 Littelfuse POWR-GARD® Products Rev: 051815 LPS Series Shunt-Trip Disconnect Switch OPERATION & MAINTENANCE R2 Wiring Diagram (With AZ Option) POWRSWITCH SCHEMATIC R2-AZ TERMINOLOGY LINE -Connection to the input source of power. LOAD -Connection to the protected circuit load. DISCONNECT -Main switch that disconnects power via manual, or shunt trip. CONTROL TRANSFORMER -Converts the incoming line voltage to 120vac. PL -An optional door pilot light used to indicate the presence of control voltage. Fire Alarm Supervisory Relay -Optional relay (FR) for monitoring control voltage. -Abbreviation for Normally Open Fire Alarm N.O.F.A. (contact closure initiates shunt trip). Fire Alarm Isolation Relay -Provides fire alarm initiating circuit isolation. KEY TEST -Optional door key-switch used for testing, to trigger a shunt trip disconnect. SHUNT TRIP -Mechanism, triggered by CR closure, that opens the disconnect. SW -Internal to the shunt trip mechanism that opens when the switch is tripped. THIS WIRE IS USED ONLY IF KEY TEST OPTION IS INSTALLED OPTION B: Auxiliary contacts are mechanically interlocked to the main switch contacts. These auxiliary contacts follow the main switch contacts. OPTION AZ: These contacts indicate the presence or absence of shunt control voltage. However, if the main switch is turned off, these contacts will indicate that shunt control voltage is present. 800.TEC.FUSE | littelfuse.com 8 of 13 © 2015 Littelfuse POWR-GARD® Products Rev: 051815 LPS Series Shunt-Trip Disconnect Switch Preventive Maintenance • Periodically check torque on the wire compression screws in the power circuit. The chart included has the torque values for the various models. • Annual review of POWR-Switch is recommended. ABB has no specific maintenance recommendations. Otherwise, predictive maintenance could be done by thermal-scan, either with an IR imager or a non-contact temperature sensor. • Any unexpected temperature increase, not related to load variations or ambient temperature could signal a problem with lug torque. • Maximum temperature at any lug should never exceed 75 degrees C under any conditions. • Clean and periodically dust product throughout the year. Frequently Asked Questions What UL listings does the Littelfuse POWR-Switch have? The POWR-Switch unit is UL-Listed to UL 98. The molded case switch used within the POWR-Switch is UL-Listed to UL 489. What codes and standards does the Littelfuse POWR-Switch meet? The POWR-Switch meets several NEC, NFPA 72, and ANSI/ASME standards. Please refer to Littelfuse product literature for more details. How does the Mechanical Auxiliary Contact Option (Option A) work? The “A” Option is a set of auxiliary contacts that are mechanically interlocked to the main switch. These contacts are generally used for auxiliary power interface such as battery lowering. The contacts are used to signal initiation of auxiliary power in the event of power loss. The contact is a single pole, double throw (SPDT) contact. It is important to note that these contacts differentiate between manually turned off or shunted off (refer to the table below). MAIN SWITCH STATE OF AUX CONTACTS NO (9 & 10) NC (8 & 9) Off On Shunted O X X O = Off How does the Mechanical Auxiliary Contact Option (Option B) work? X = On The “B” Option is two sets of auxiliary contacts that are mechanically interlocked to the main switch. These contacts are generally used to monitor the status of the switch. The contacts are double pole, double throw (DPDT) contacts. It is important to note that these contacts will follow the state of the switch. (Refer to the table below). STATE OF CONTACTS MAIN SWITCH NO NC ( Off On Shunted O X O O = Off How does the AZ Option (Option -AZ) work? X O X X = On Internal wiring between the molded case switch’s auxiliary contacts and the fire relay’s contacts implements a logic circuit that monitors the availability of shunt trip power. Terminals 15-16 close only if the main switch is on and the shunt trip power fails. They will not close if the main switch is manually turned off for maintenance, preventing a false alarm. (Refer to table below). MAIN SWITCH STATE OF AUX CONTACTS NO (15 & 16) NC (14 & 15) Off, Power Available On, Power Available Off, No Power On, No Power O o O X O = Off 800.TEC.FUSE | littelfuse.com X O O 9 of 13 X x X O X = On © 2015 Littelfuse POWR-GARD® Products Rev: 051815 LPS Series Shunt-Trip Disconnect Switch Does the instantaneous trip feature built into the molded case switch create the potential to strand passengers when used on circuits with hydraulic elevators and auxiliary battery lowering? The shunt trip mechanism within the switch is utilized, not the instantaneous trip feature of the switch. Even in the event of an instantaneous trip condition, the alarm relay will respond the same as when the switch is shunted off. There is no potential for stranding passengers when Littelfuse POWR-Switch units are installed with the Mechanical Interlock Auxiliary Contact Option (Option A, battery back-up feature). During a power loss, will the state of the switch change state? The POWR-Switch will not change state. However, units installed with the Mechanical Interlock Auxiliary Contact Option (Option A) will distinguish between turned off and shunted off and send a signal accordingly to the fire alarm controller. How does the POWR-Switch decide when the elevator needs to be lowered? The Littelfuse POWR-Switch does not make that decision. The POWR-Switch provides a signaling means to the fire alarm controller. The fire alarm controller makes all decisions regarding when and where the elevator is to be lowered. Does the fire safety relay monitor the voltage required by NFPA 72? No, the fire safety relay option (Littelfuse option R1 or R2) does not monitor voltage. Littelfuse offers both a fire safety relay and fire alarm voltage monitoring relay options. The Littelfuse Fire Alarm Voltage Monitoring Relay (F1/F3 option) does meet NFPA 72 (National Fire Alarm Code) requiring control circuits to be monitored for presence of voltage. The Littelfuse unit is wired to sense the voltage available to initiate the shunt-trip. It will change state if a power loss occurs. It does not rely on the shunt-trip itself. Does the Littelfuse POWR-Switch require any periodic maintenance? No specific maintenance is required. However, like most electrical equipment, it is always a good idea to periodically check wire connections for proper torque and ensure fuse clips are clean and tight. Please refer to the Preventive Maintenance section of this document for more details. How do you hook up the dry contacts for the battery back-up option? This will depend on how the Mechanical Auxiliary Contact (Option A) will be connected. The A Option will follow the ON/OFF of the switch when the handle is in the off position. Terminals 8 & 9 will be used when following the NC contacts. Terminals 9 &10 will be used when following the NO contacts. Where do you land the power for the shunt trip on the terminal strip? Where does the fire alarm get connected for monitoring the status of the switch? How do I connect to the fire alarm voltage-monitoring relay? 800.TEC.FUSE | littelfuse.com This will vary if using the R1 Option (120 VAC) or the R2 Option (24 Vdc). Terminals 1 & 3 will be used for the R1 Option. Terminal 3, 7, & 24 will be used for the R2 Option. This will vary on which option is being utilized (A or B). Option A will use terminals 8, 9, & 10. Option B will use terminals 14, 15, & 16. This is commonly referred to as the FR relay and is Littelfuse Option F1 or F3. Terminals 11, 12, & 13 are used for this purpose. 10 of 13 © 2015 Littelfuse POWR-GARD® Products Rev: 051815 LPS Series Shunt-Trip Disconnect Switch FREQUENTLY ASKED QUESTIONS If a POWR-Switch is ordered with a wrong component, can the component be changed in the field? No. To comply with UL guidelines, product modifications can only be completed by authorized factory personnel. Other modifications will void the Littelfuse UL listing. Can the POWR-Switch be used as a service entrance switch? The Littelfuse POWR-Switch is UL-Listed per UL 98. Yes, it can be used as a service entrance if properly labeled as such. Can the POWR-Switch be fed in reverse with the line from the bottom and load out the top of the switch? When connecting the POWR-Switch to the fire alarm, what do you do with the neutral? Can the POWR-Switch be used in an application with no fire alarm and can a smoke detector be connected instead? Does the FR Relay (Option F1 or F3) change state during a power loss? Is the operating handle of the POWR-Switch lockable in the “off” position only? What enclosures are available for the POWR-Switch? Is a CPT always required in a POWR-Switch? No, the POWR-Switch will not properly function. There is no need to tie into the neutral. POWR-Switch units equipped with a Control Power Transformer (CPT) will supply 120 volts. No, this is not in accordance with the fire code. Yes, the FR relay will always change state. The FR relay is designed to monitor voltage that is available for the shunt trip. This is a requirement of NFPA 72. Yes, the handle can only be locked from the “off” position and can accommodate a maximum of three padlocks. All ratings of the POWR-Switch come standard with a UL (NEMA) type 1 enclosure. Optional enclosures include UL (NEMA) type 3R, 4, and 12. In most cases, a CPT will be required to supply the 120 Vac for shunt tripping. How is the Littelfuse POWR-Switch typically shipped and how much do they weigh? The form of shipment will depend on the number of units ordered. Large quantities are typically shipped via truck and smaller quantities shipped via UPS. 30-100 amp units weigh approximately 70 pounds and 200 amp units weigh around 85 pounds. 400 amp units weigh over 200 pounds and can only be shipped via truck. What kind of fuses does Littelfuse recommend? JTD or JTD_ID fuses. The fuse holders installed in the panels are made to accommodate this type fuse. These fuses afford good short circuit and motor load protection. For fuse sizing see NEC Article 430.52 which says “in a nutshell” motor branch circuit fuses of the time-delay type may be sized for up to 175% of the motor full load amps. What is the warranty for the LPS? Under most circumstances, there is a one-year warranty. Please contact your local Littelfuse Sales Representative if you have any questions or a unique situation. 800.TEC.FUSE | littelfuse.com 11 of 13 © 2015 Littelfuse POWR-GARD® Products Rev: 051815 LPS Series Shunt-Trip Disconnect Switch FREQUENTLY ASKED QUESTIONS What do I do if the door is stuck? If the handle is in the ON position, pointing straight down or at 270 degrees (i.e. south), there should be no problem opening the door after switching it to the OFF position. If the handle seems to be in the down position, yet slightly to the right, it is a good indicator that the MCCB has been shunted. (See picture). This is easily corrected Step 1: The technician should place their left hand just to the left of the handle with the handle between their index finger and thumb. Then apply pressure with a majority of body weight. Step 2: T urn the handle to the OFF position while maintaining pressure on the door. Step 3: T urn the handle back to the ON position while maintaining pressure on the door. Step 4: T urn the handle back to the OFF position, while maintaining pressure on the door. At this point the MCCB should be reset in the correct position, with no further hindrances in opening the door. 800.TEC.FUSE | littelfuse.com 12 of 13 © 2015 Littelfuse POWR-GARD® Products Rev: 051815 LPS Series Shunt-Trip Disconnect Switch XPRESS-SHIP™ FREQUENTLY ASKED QUESTIONS I need a part number that is not listed on the XPress-Ship Program. Can I get an expedited shipment service? Yes, Littelfuse offers expedite shipment service for part numbers outside the XPress-Ship Program. I have a repeat order for a XPress-Ship Program part number, I have ordered in the past. Can I get the same part number in standard shipment service? Yes, you may request standard shipment service by substituting the ordering part number prefix ‘XPS’ with ‘LPS’ Can I get the XPress-Ship program product I ordered air shipped? Contact your Littelfuse Customer Service Team for pricing and availability. Example: XPress-Ship ordering number: XPS6T48R1KGN6F3-AZ Standard shipment ordering number: LPS6T48R1KGN6F3-AZ Yes, you may request air shipment when booking the order, however the customer would be responsible for all charges involved for air shipment. I need 10 units of a specific part number from the XPress-Ship Program. Can I get the program’s 48 hour service on all units? No, XPress-Ship 48 hour service is limited to three switches per customer order. Do I need to order fuses separately, when I place an order for a Part Number in XPress-Ship Program? No, all part numbers offered through XPress-Ship include three pre-installed JTD_ ID Series fuses rated at the device’s maximum ampacity. Contact your Littelfuse Customer Service Team for availability in scenarios such as this. Example: XPS2T48R1KGN2BF3 is a 200 A switch and ships with three 0JTD200.XXID fuses installed. Note: When ordering LPS Series in standard shipment service, fuses must be ordered separately. Can I receive a fuse rating other than the maximum rating supplied with the switch in the XPress-Ship Program? 800.TEC.FUSE | littelfuse.com No, switches in the XPress-Ship Program are offered with fuses pre-installed and rated to the maximum ampere rating of the switch. Customers may request a different fuse rating while booking the order and those will be charged and shipped separately, but are not included under the XPressShip Program Service Terms. 13 of 13 © 2015 Littelfuse POWR-GARD® Products Rev: 051815