R3‑52 Panel Mount Fuse Holder, 20A 250V AC DC for 6×30mm Glass & Ceramic Fuse Tube
R3‑52 M16*1.0 screw‑in panel mount fuse holder rated 20A 250V/125V AC DC for 6×30mm fuses. Bakelite UL94‑V‑0 housing, factory wholesale supply.
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R3‑52 Panel Mount Fuse Holder, 20A 250V AC DC for 6×30mm Glass & Ceramic Fuse Tube
Product Overview
R3‑52 screw‑in panel‑mount fuse holder is a high‑current chassis‑mount circuit‑protection component from GFEFUSE. It is designed for standard 6×30 mm glass and ceramic fuse tubes with 20A continuous current rating at 250V AC /125V DC. Adopt heat‑resistant Bakelite UL‑94V‑0 housing and 0.5 mm phosphor‑bronze terminals, delivering low contact resistance and excellent high‑voltage insulation performance. M16*1.0 mounting thread enables panel installation; twist‑off cap supports fast fuse replacement. Ideal for power supplies, industrial control cabinets and equipment requiring higher current protection.
Key Features
‑ Accept industry‑standard 6×30 mm glass / ceramic fuse tubes ‑ High current rating：20A, 250V AC /125V DC; breaking capacity 50A ‑ Heat‑resistant Bakelite body, flame retardant UL‑94V‑0 ‑ 0.5 mm phosphor bronze terminals for stable high‑current conduction ‑ Dielectric withstand voltage up to 3000 VAC ‑ Low contact resistance＜5 mΩ; insulation resistance＞100 MΩ ‑ M16*1.0 screw‑thread panel/chassis mounting ‑ Twist‑cap design for convenient fuse swap without tool
Technical Specifications
| Item | Parameter |
|---|---|
| Model No. | R3‑52 |
| Rated Current | 20A |
| Rated Voltage | 250V AC /125V DC |
| Compatible Fuse Size | 6×30 mm fuse pipe |
| Breaking Capacity | 50A |
| Housing Material | Bakelite (UL‑94V‑0) |
| Terminal Material | 0.5 mm Phosphor Bronze |
| Withstand Voltage | 3000 VAC |
| Contact Resistance | ＜5 mΩ |
| Insulation Resistance | ＞100 MΩ |
| Panel Mount Thread | M16*1.0 |
| Note | Fuse NOT included; product subject to change without prior notice |
Dimensions & Installation
（⚠️Not interchangeable with M151.0 models R3‑13/R3‑22） ‑ Reference overall dimension：total length 53.2 mm, refer to official datasheet for full dimension details. ‑ Installation：Drill M16*1.0 matching hole on equipment panel; pass fuse holder through panel; lock with mounting nut; twist open cap and insert 6×30 mm fuse tube then tighten cap.
Typical Applications
High‑current industrial power supplies & converters ‑ Test and measuring instruments ‑ Industrial control cabinets & chassis devices ‑ Charging equipment ‑ Audio and household high‑power appliances ‑ General‑purpose AC/DC over‑current circuit protection
FAQ
1: Which fuse can I use for R3‑52 fuse holder?
1): This holder fits standard 6×30 mm glass tube fuses and ceramic tube fuses. Fuse is not included in package.
2: What is the maximum rated current for R3‑52?
2): Rated continuous current is 20A, breaking capacity 50A.
3: Can R3‑52 work for DC circuits?
3): Yes, rated for both 250V AC and 125V DC circuit protection.
4: What mounting thread size of R3‑52?
4): M161.0 thread. It cannot share panel hole with M151.0 R3‑13/R3‑22 series.
5: What housing material for R3‑52?
5): Heat‑resistant Bakelite with UL‑94V‑0 flame‑retardant grade.
About Manufacturer
Dongguan GongFu Electronic Co., Ltd. is professional manufacturer of safety fuses and fuse holders. We produce panel‑mount fuse holders, PCB fuse sockets, inline fuse holders with strict electrical safety tests. Bulk wholesale, OEM & custom service available. Contact us for datasheet, quotation and samples.
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