H345121
Fuse Holder
- Manufacturer: LITTELFUSE
- Product type: Fuse Holders
- Fuse Current: 16A
- No. of Fuses: 1Fuses
- Product Range: 345 Series
- Fuse Size Held: 5mm x 20mm
- Fuse Holder Type: Cartridge Fuse Holder
- Holder Terminals: Quick Connect
- Voltage Rating VAC: 250V
| Delivery and price | |
|---|---|
| Units per pack | 1000 |
| Price | 3.07 € |
| Current stock | 10+ |
| Lead time | 30 days |
**Fuseholders** **For 3AG, 5 x 20mm, or 2AG Fuses** ## **Shock-Safe for 3AG or 5x20mm Fuses PC Board Type** **==> picture [72 x 17] intentionally omitted <==** **----- Start of picture text -----**<br> V<br>® ® D E<br>AE <><br>**----- End of picture text -----**<br> Similar to Shock-Safe fuseholders shown on preceding page, but designed for P.C. board mounting. Shock-Safe design per IEC Standards 60127 and 60065. Two different knob styles available for use with 3AG (1/4" x 11/4") or 5 x 20mm fuses. **APPROVALS:** Recognized under the Components Program of Underwriters Laboratories (16A, 250V). Certified by CSA (15A, 250V). VDE approved (10A, 250V). ## **SPECIFICATIONS:** **Electrical:** Rating: See APPROVALS. **Insulation Resistance:** 10,000 megohm minimum at 500 VDC. **Contact Resistance:** Less than .005 ohm average at a current of one ampere. **Dielectric Strength:** 4000 volts minimum. **Mounting:** Intended for soldering to printed circuit boards. **Molded Parts:** Body Material: Black glass-filled thermoplastic (UL 94V0). **Knob:** Screwdriver slot, fuse extractor type with nickel-plated, copper alloy insert. Spring-loaded, bayonet style. **Knob Material:** Grey or Black glass-filled thermoplastic (UL94 V-0). **Terminals:** Brass. Tin-plated. **Ambient Temperature:** –40°C to +85°C. *** Please refer to Fuseology section for information on proper fuseholder de-rating.** ## **Reference Dimensions** **==> picture [215 x 187] intentionally omitted <==** **----- Start of picture text -----**<br> .49"<br>|—_ 1.77" —! | |_<br>4 4<br>.44" .48"<br>.20" .12"<br>a .68" le .24" .040" L o t<br>Recommended hole Pattern<br>< .598.602" +— " _> |< «—-— .698.702"" _ .242.246""<br>> | —<br>56"<br>IA.<br>ORDERING<br>Catalo Fuse<br>Numb Size<br>345 101 1/4" x 11/4" Fuses<br>345 121 5 x 20mm Fuses<br>Body only: 345 101-010<br>Knob only: 345 101-020 ( [1] /4" x 1 [1] /4") Grey;<br>345 121-020 (5 x 20mm) Black.<br>**----- End of picture text -----**<br> ## **For Midget Fuses Panel Mount Type** **==> picture [34 x 9] intentionally omitted <==** **----- Start of picture text -----**<br> ® Ww ®<br>**----- End of picture text -----**<br> Two panel mount fuseholder designs are available for supplementary or Class CC branch circuit protection. Class CC fuses have a rejection feature on one end cap which mates with the rejection feature of Littelfuse Class CC fuse blocks and fuseholders to prevent the installation of fuses with lower voltage ratings or interrupting ratings. **APPROVALS:** Recognized under the Components Program of Underwriters Laboratories and Certified by CSA. ## **SPECIFICATIONS:** **Electrical:** Rated at 30 amperes for any voltage up to 600 volts. **Dielectric Strength:** 4000 volts minimum. **Mounting:** Flange mounting either in front of or behind panel. Watertight version must be front panel mounted. Maximum panel thickness is .75". **Molded Parts:** Black thermoplastic (UL94 V-0). **Knob:** Screw type, with engraved markings: unfilled characters ( **571** 007, **571** 008, **571** 007P, **571** 008P), light blue characters ( **571** 027, **571** 028, **571** 027P, **571** 028P). **Terminals:** Brass. Tin-plated. Combination solder and[1] /4" QuickConnect. Side terminal has .125" diameter hole. Bottom terminal has .156" x .124" elongated hole. **Ambient Temperature:** –40°C to +85°C. **Hardware: 571** 007, **571** 008, **571** 027, **571** 028, **571** OCC, and **571** RCC, none; **571** 007P, **571** 008P, **571** 027P, **571** 028P, **571** OCCP, and **571** RCCP, two O-rings for watertight seal per MIL-PRF-19207. *** Please refer to Fuseology section for information on proper fuseholder de-rating.** **==> picture [174 x 93] intentionally omitted <==** **----- Start of picture text -----**<br> Reference Dimensions<br>.15" MAX | .86" 172" (2) DIA.<br>DIA. 1.12"<br>.032" reia= 2.08"2.40" ly .76" [= 1.31"1.75"<br>STANDARD MOUNTING<br>(FLANGE IN FRONT OF PANEL)<br>.15" MAX<br>1.310".890" 2 MOUNTING HOLES FORNo. 8 SCREWS<br>.446"<br>e e<br>**----- End of picture text -----**<br> ## **ORDERING INFORMATION:** |**Catalog Number**<br>**Standard**<br>**571** 027<br>**571** 028|**Catalog Number**<br>**Standard**<br>**571** 027<br>**571** 028|**Catalog Number**<br>**Watertight**<br>**571** 027P<br>**571** 028P|**Bottom**<br>**Terminal**<br>Straight<br>Rt. Angle|**Fuse Length**<br>**Range***<br>15/16" – 13/8"| |---|---|---|---|---| |**571** 007<br>**571** 008<br>**571** OCC<br>**571** RCC||**571** 007P<br>**571** 008P<br>**571** OCCP<br>**571** RCCP|Straight<br>Rt. Angle<br>Straight<br>Rt. Angle|113/32" – 11/2"<br>11/2"| *Fuse diameter is[13] /32". 13 471 w w w. l i t t e l f u s e . c o m
Updated at February 9, 2023
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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