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03453LF1H
Fuseholder, Panel Mount, Shock Safe, 250V, 10A, 3AG, Solder / Quick Connect, Fingergrip Cap
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: LITTELFUSE
- Product type: Fuse Holders
- Fuse Holder Type:Cartridge Fuse Holder; Fuse Current:20A; Fuse Size Held:1/4" x 1-1/4", 6.3mm x 32mm, 3AB, 3AG; Holder Terminals:Quick Connect; No. of Fuses:1Fuses; Product Range:345
- SVHC: To Be Advised
- Fuse Current: 20A
- No. of Fuses: 1Fuses
- Product Range: 345
- Fuse Size Held: 1/4" x 1-1/4", 6.3mm x 32mm, 3AB, 3AG
- Fuse Holder Type: Cartridge Fuse Holder
- Holder Terminals: Quick Connect
- Voltage Rating VAC: 250V
- Voltage Rating VDC: 250V
| Delivery and price | |
|---|---|
| Units per pack | 100 |
| Price | 3.31 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**Cartridge Fuse Holders** Enclosed Fuseholders > Panel Mounted ~~**RoHS Pb** _IOWESs~~ ## 345 Series Shock-Safe Panel Mo ~~unt Enclosed Fuse Holders~~ ## ~~**Product Characteristics** [Po~~ |**Compatible**<br>**Fuses**|**For 3AB, 3AG, 5×20mm, or 2AG Fuses**| |---|---| |**Description**|Designed to eliminate the possibility of electrical shock,<br>as defined in IEC 60127-6. The universal fuseholder<br>body will accept 3AB, 3AG, 5 × 20mm, and 2AG fuse<br>sizes depending on knob selected. Permits inventory<br>reduction of bodies and provides knob interchange<br>versatility. Anti-tease feature eliminates circuit<br>interruption when knob is accidentally depressed. Five<br>fuseholder types assure design flexibility. Available<br>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”<br>NEMA/DIN quick connect. Quick fuse size identification<br>is provided with letters on fingergrip knob and color-| ||coded screwdriver slot knobs.| ||Insulation Resistance: 10,000 megohm minimum at| |**Electrical**|500 VDC. Contact Resistance: Less than .005 ohm| ||average at currents up to 1 ampere.| ||Threaded styles withstand 15 in.-lb. mounting torque.<br>Low profile and High profile panel thickness: .032”| |**Mounting**|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<br>(UL94 V0).| |**Knob Material**|Grey, blue or black glass-filled thermoplastic (UL94 V-0)<br>Hex Nut Material: Black glass-filled thermoplastic.| ||Finger-Grip, Fuse Extractor type or Screwdriver Slot,| ||Fuse Extractor type with plated copper alloy insert.| |**Knob**|Plated copper alloy contact clips. Spring loaded, locking| ||mechanism provides an anti-tease feature and will not| ||vibrate loose.| ||Copper alloy. Tin-plated. Three styles available. A .187”| ||dual purpose terminal accepts wire for soldering or a| |**Terminals**|Quick-Connect receptacle. .187” terminal for NEMA| ||Quick-Connect and .250” terminal for NEMA/DIN Quick-| ||Connect available.| |**Ambient**<br>**Temperature***|–40ºC to +85ºC.| ||Threaded style fuseholders are supplied with a| ||thermoplastic hex nut unassembled. Quick mount style| ||fuseholders are supplied with a push-on type retaining<br>nut, black oxide finish, unassembled. A synthetic rubber| ||“O” ring will be supplied only with the screwdriver| |**Hardware**|slot knob when the drip-proof version is requested.<br>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)<br>[Screwdriver slot knob only], add the appropriate suffix| ||(L, N, or NP) respectively (or in combination) to the| ||catalognumber. Accesories can be order byseparately.| * - Refer to Fuseology for information on proper re-rating. **==> picture [211 x 63] intentionally omitted <==** **----- Start of picture text -----**<br> Additional Information<br>Datasheet Resources Samples<br>**----- End of picture text -----**<br> ||**Agency Approval**|**Agency Approval**|**Agency Approval**|| |---|---|---|---|---| |**Agency**|**Agency File**<br>**Number**|**3AG/AB**<br>**(6.3x32mm)**|**5×20mm**|**2AG**| |~~™~~<br>G|E14721<br>7316|20A 250V<br>20A 250V|20A 250V<br>20A 250V|10A 250V<br>10A 250V| ||40001642|10A 250V|10A 250V|—| © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/01/18 Application testing is strongly recommended. **Cartridge Fuse Holders** Enclosed Fuseholders > Panel Mounted **==> picture [94 x 32] intentionally omitted <==** ## ~~**Dimensions**~~ **==> picture [505 x 564] intentionally omitted <==** **----- Start of picture text -----**<br> Terminal Styles<br>Low Profile Fingergrip Knob special 1/2" thread<br>.090" x .160" .070"<br>.60" DIA. HOLE .055" HOLE<br>HOLE<br>.41" 1.59"<br>Rear Mount Fingergrip Knob .187" .187" .250"<br>special 1/2" thread<br>3/16" DUAL 3/16" NEMA 1/4" NEMA/DIN<br>PURPOSE QUICK CONNECT QUICK CONNECT<br>.65" DIA. SOLDER/QUICK<br>CONNECT<br>Bottom Terminal<br>.50" MIN. 1.50" MAX. Suggested Mounting Holes Right Angle Straight<br>High Profile Screwdriver Slot Knob<br>.04"x.25" special 1/2" thread .475" .460" B<br>.480" .465" C<br>.60" DIA. .500" A<br>.505"<br>.40" 1.35 " A B C<br>Low Profile Screwdriver Slot Knob .187" QC .53" .30" .020"<br>.04"x.25" special 1/2" thread .250" QC .59" .36" .032"<br>.60" DIA. "Push-On" Type Retaining Nut<br>for Quick Mount Fuseholder Plastic Hex Nut with Flange<br>Quick Mount Screwdriver Slot Knob .16" ´ 1.59" .19" DIA..65"<br>.04"x.25" .63"<br>.60" DIA.<br>.91" DIA. SPECIAL .558"<br>.16" 1.59" 1/2" THREAD HEX.<br>Ordering Part Numbering System to order complete fuse holder (body and knob)<br>Example 03453LS7HXLNP - A 345 Series fuse holder for 3AG fuses with low profile body and a Screwdriver Slot knob, with<br>1/4" (Rt. Angle) Nema/Din QC terminals.<br>0 345 3 LS 7 H X L N P<br>Series Name<br>Fuse Size Style Terminals Packing Accessory*<br>2 LF 1 H L<br>.1772AG " x .570" Black Fingergrip KnobLow Profile Body Dual Purpose Solder/QC3/16" (Rt. Angle) For 100 Pieces (Bulk) Lockwasher<br>3 RF 2 N<br>.250"3AG x 1.250" Black Fingergrip KnobRear Mount Body Dual Purpose Solder/QC3/16" (Straight) Neoprene Washer<br>P<br>5 HS 3<br>5 x 20mm High Profile Body 3/16" (Rt. Angle) Drip-Proof "O" Ring**<br>.197" x .787" Screwdriver Slot Knob NEMA QC with Neoprene Washer<br>LS 4 *Optional (L,N,P) can be ordered<br>Low Profile Body 3/16" (Straight) individually or in combination<br>Screwdriver Slot Knob NEMA QC **Screwdriver slot knob only<br>QS 7<br>Quick Mount Body 1/4" (Rt. Angle)<br>Screwdriver Slot Knob NEMA/DIN QC<br>Screwdriver Slot Knob 8<br>2AG - Blue Knob 1/4" (Straight)<br>3AG - Grey Knob NEMA/Din QC<br>5 x 20mm - Black Knob<br>U<br>U<br>U<br>U<br>U<br>S<br>S<br>S<br>S<br>S<br>F<br>F<br>F<br>F<br>F<br>E<br>E<br>E<br>E<br>E<br>E<br>E<br>E<br>E<br>E<br>F<br>F<br>F<br>F<br>F<br>S<br>S<br>S<br>S<br>S<br>U<br>U<br>U<br>U<br>U<br>**----- End of picture text -----**<br> Note - If accessory is needed, add the "X" as filler on the ordering part number © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/01/18 **Cartridge Fuse Holders** Enclosed Fuseholders > Panel Mounted **==> picture [93 x 32] intentionally omitted <==** ## ~~**To Order Body Including Nut(s) Only**~~ **==> picture [506 x 108] intentionally omitted <==** **----- Start of picture text -----**<br> Terminal Style Bottom Terminal Low Profile Body High Profile Body Rear Mount Body Quick Mount Body<br>Part Number*** Part Number Part Number Part Number<br>3/16” Dual Purpose (Rt. Angle) 03453QS4ZX010 03453QS4ZX010 03453QS4ZX010 03453QS4ZX010<br>3/16” Dual Purpose (Straight) 03453QS4ZX010 03453QS4ZX010 03453QS4ZX010 03453QS4ZX010<br>3/16” NEMA QC (Rt. Angle) 03453QS4ZX010 03453QS4ZX010 03453QS4ZX010 03453QS4ZX010<br>3/16”NEMA QC (Straight) 03453QS4ZX010 03453QS4ZX010 03453QS4ZX010 03453QS4ZX010<br>¼” NEMA/DIN QC (Rt. Angle) 03453QS4ZX010 03453QS4ZX010 03453QS4ZX010 03453QS8ZX010<br>¼”NEMA/DIN QC (Straight) 03453QS4ZX010 03453QS4ZX010 03453QS4ZX010 03453QS8ZX010<br>**----- End of picture text -----**<br> ***Low Profile Body will accept either Fingergrip or Screwdriver Slot Knob. Z - 100 pieces (Bulk) X - Filler ||~~**To Order Knob Only**~~|~~**To Order Knob Only**~~||| |---|---|---|---|---| ||Fuse Size|Fingergrip Knob|Screwdriver Slot<br>Knob|| ||2AG|**03452LF1HX020**|**03453LF1HX020**|| ||3AG|**03453LF1HX020**|**03453LF1HX020**|| ||5 × 20mm|**03453LF1HX020**|**03453LF1HX020**|| ~~**To Order Accesories Only**~~ ||Accesory|Packaging|Part Number| |---|---|---|---| ||ACS Rubber Washer|**Bulk (100 pieces)**|**09010002H**| ||ACS Nut|**Bulk (100 pieces)**|**09030097H**| ||ACS Lockwasher|**Bulk (100 pieces)**|**09050023H**| ||ACS O-Ring|**Bulk (100 pieces)**|**09010134H**| - H - 100 Pieces (Bulk) X - Filler - H - 100 Pieces (Bulk) **Disclaimer Notice** - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/01/18
Updated at June 10, 2026
Founded in 1927 and headquartered in Chicago, Illinois, Littelfuse is a premier global manufacturer of circuit protection, power control, and sensing technologies. Widely recognized for pioneering the first small, fast-acting protective fuse, the company has grown into an industry leader whose highly reliable components are essential to modern industrial, transportation, and consumer electronics applications worldwide. At the core of the Littelfuse portfolio is an expansive and industry-leading range of circuit protection solutions. This encompasses a massive selection of traditional fuses, fuse holders, and resettable PTC thermistor fuses designed to safely interrupt overcurrent conditions. To defend against electrical overstress, Littelfuse also provides advanced transient voltage suppression (TVS) technologies, including thousands of specialized TVS diodes, TVS varistors, and gas discharge tubes (GDTs) that ensure robust defense against voltage spikes and environmental hazards. Beyond its foundational protection components, Littelfuse manufactures a diverse array of discrete semiconductors, sensors, and switching devices. Engineers rely on their high-performance thyristors, including TRIACs and SCRs, alongside power-efficient Schottky diodes and MOSFETs for demanding power control applications. Complemented by precision proximity sensors and highly reliable reed and solid-state relays, Littelfuse delivers the critical building blocks required for secure, efficient, and complete system design.
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