Cartridge Fuse Holders Enclosed Fuseholders > Panel Mounted 345 Series Shock-Safe Panel Mount Enclosed Fuse Holders RoHS Pb Product Characteristics Compatible Fuses For 3AB, 3AG, 5×20mm, or 2AG Fuses Description Designed to eliminate the possibility of electrical shock, as defined in IEC standards 60127-6. The universal fuseholder body will accept 3AB, 3AG, 5 × 20mm, and 2AG fuse sizes depending on knob selected. Permits inventory reduction of bodies and provides knob interchange versatility. Anti-tease feature eliminates circuit interruption when knob is accidentally depressed. Five fuseholder types assure design flexibility. Available with two knob styles — screwdriver slot or fingergrip. Available in two terminal styles — dual-purpose for soldering or 3/16” NEMA quick connect; and ¼” NEMA/DIN quick connect. Quick fuse size identification is provided with letters on fingergrip knob and color-coded screwdriver slot knobs. Electrical Insulation Resistance: 10,000 megohm minimum at 500 VDC. Contact Resistance: Less than .005 ohm average at currents up to 1 ampere. Mounting Threaded styles withstand 15 in.-lb. mounting torque. Low profile and High profile panel thickness: .032” min./.310” max. Quick mount panel thickness: .012” min./.360” max. Rear mount panel thickness: .012” min./.260” max. Molded Parts Body Material: Black glass-filled thermoplastic (UL 94V0). Knob Material Grey, blue or black glass-filled thermoplastic (UL94 V-0) Hex Nut Material: Black glass-filled thermoplastic. Knob Finger-Grip, Fuse Extractor type or Screwdriver Slot, Fuse Extractor type with plated copper alloy insert. Plated copper alloy contact clips. Spring loaded, locking mechanism provides an anti-tease feature and will not vibrate loose. Terminals Copper alloy. Tin-plated. Three styles available. A .187” dual purpose terminal accepts wire for soldering or a Quick-Connect receptacle. .187” terminal for NEMA Quick-Connect and .250” terminal for NEMA/DIN QuickConnect available. Ambient Temperature –40ºC to +85ºC. Hardware Threaded style fuseholders are supplied with a thermoplastic hex nut unassembled. Quick mount style fuseholders are supplied with a push-on type retaining nut, black oxide finish, unassembled. A synthetic rubber “O” ring will be supplied only with the screwdriver slot knob when the drip-proof version is requested. To order with a metal internal tooth lockwasher (L) and/or neoprene panel washer (N) and/or drip-proof synthetic rubber “O” ring with Neoprene washer (NP) [Screwdriver slot knob only], add the appropriate suffix (L, N, or NP) respectively (or in combination) to the catalog number. * Please refer to Fuseology section for information on proper fuseholder re-rating. Agency Approval Additional Information Datasheet Resources Agency Samples © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 07/27/15 Agency File 3AG/AB Number 5×20mm 2AG E14721 20A 250V 10A 250V 10A 250V 7316 20A 250V 10A 250V 10A 250V 40001642 10A 250V 10A 250V — Cartridge Fuse Holders Enclosed Fuseholders > Panel Mounted Dimensions Low Profile Fingergrip Knob .090" x .160" HOLE .60" DIA. E E F US FUS .41" 1.59" Rear Mount Fingergrip Knob US special 1/2" thread .65" DIA. E E F Terminal Styles special 1/2" thread 1.50" MAX. FUS .50" MIN. special 1/2" thread .187" .250" 3/16" NEMA QUICK CONNECT 1/4" NEMA/DIN QUICK CONNECT .475" .480" Bottom Terminal Right Angle Straight .460" .465" C .500" .505" .60" DIA. E E F US .187" 3/16" DUAL PURPOSE SOLDER/QUICK CONNECT Suggested Mounting Holes High Profile Screwdriver Slot Knob .04"x.25" .070" HOLE .055" HOLE A 1.35" FUS .40" A B C .187" QC .53" .30" .020" .250" QC .59" .36" .032" Low Profile Screwdriver Slot Knob special 1/2" thread .04"x.25" .60" DIA. E E F US "Push-On" Type Retaining Nut for Quick Mount Fuseholder FU S .16" ´ Quick Mount Screwdriver Slot Knob Plastic Hex Nut with Flange 1.59" .65" DIA. .19" .04"x.25" .63" US .60" DIA. E E F B FUS .91" DIA. SPECIAL 1/2" THREAD 1.59" .16" .558" HEX. Part Numbering System EXAMPLE: (Complete Assembly with Options) Series Number 345 3 LS 7 L N P Options* Fuse Size Style Terminals 2 LF 1 L 2AG .177" x .570" Low Profile Body Black Fingergrip Knob 3/16" (Rt. Angle) Dual Purpose Solder/QC Lockwasher 3 RF 2 3AG .250" x 1.250" Rear Mount Body Black Fingergrip Knob 3/16" (Straight) Dual Purpose Solder/QC N Neoprene Washer P Drip-Proof “O” Ring** with Neoprene Washer 3 5 HS 5 x 20mm .197" x .787" 3/16" (Rt. Angle) NEMA QC High Profile Body Screwdriver Slot Knob 4 LS 3/16" (Straight) NEMA QC Low Profile Body Screwdriver Slot Knob **Options (L, N, P) can be ordered individually or in combination. **Screwdriver slot knob only. 7 QS 1/4" (Rt. Angle) NEMA/DIN QC Quick Mount Body Screwdriver Slot Knob To Order Knob Only: 8 1/4" (Straight) NEMA/DIN QC Screwdriver Slot Knob 2AG — Blue Knob 3AG — Grey Knob 5 x 20mm — Black Knob Fuse Size Fingergrip Knob Screwdriver Slot Knob 2AG 3452LF1-020 3452LS1-020 3AG 3453LF1-020 3453LS1-020 5 × 20mm 3455LF1-020 3455LS1-020 To Order Body Including Nut(s) Only: Terminal Style Bottom Terminal Low Profile Body Part Number*** High Profile Body Part Number Rear Mount Body Part Number Quick Mount Body Part Number 3/16” Dual Purpose (Rt. Angle) 3453LF1-010 3453HS1-010 3453RF1-010 3453QS1-010 3/16” Dual Purpose (Straight) 3453LF2-010 3453HS2-010 3453RF2-010 3453QS2-010 3/16” NEMA QC (Rt. Angle) 3453LF3-010 3453HS3-010 3453RF3-010 3453QS3-010 3453QS4-010 3/16”NEMA QC (Straight) 3453LF4-010 3453HS4-010 3453RF4-010 ¼” NEMA/DIN QC (Rt. Angle) 3453LF7-010 3453HS7-010 3453RF7-010 3453QS7-010 ¼”NEMA/DIN QC (Straight) 3453LF8-010 3453HS8-010 3453RF8-010 3453QS8-010 ***Low Profile Body will accept either Fingergrip or Screwdriver Slot Knob. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 07/27/15