Description
R3(12E) panel fuse holder. 5×20 board mount fuse holder
Fuse holder, fuse box, panel fuse holder, 5X20 fuse holder. 6X30 fuse holder. PCB fuse holder. Automotive fuse holder, DC fuse holder, rail fuse holder. 10×38 fuse holder.
- Product Introduction:
- Product model: R3-12E
- Rated current: 10A
- Rated voltage: 250V/125V (AC/DC)
- Fitting fuse pipe: 5 x 20mm
- Split current: 50A
- Base: Black Bakelite (UL-94V0)
- Terminal: 0.4mm (phosphor)
- Withstand voltage: 3000VAC
- Contact resistance: <5mΩ
- Insulation resistance: >100MΩ
Overview
The R3/12E is a dual-purpose panel and board-mount fuse holder engineered exclusively for 5x20mm glass and ceramic cartridge fuses. It combines compact panel installation with reliable PCB/board mounting, widely used in industrial controls, switching power supplies, LED drivers, instrumentation and consumer electronics. Designed to IEC 60127 and UL standards, it delivers stable overcurrent protection and easy fuse replacement.
Key Technical Specifications
- Model: R3/12E
- Mounting: Panel mount + board/PCB mount (dual design)
- Compatible Fuse: 5×20mm (glass/ceramic tube)
- Rated Current: 10A (max)
- Rated Voltage: 250V AC / 125V DC
- Dielectric Withstand: 3000V AC (1 minute)
- Insulation Resistance: >100MΩ (DC 500V)
- Contact Resistance: <5mΩ
- Housing Material: Black Bakelite, UL94 V-0 flame retardant
- Terminal Material: Nickel-plated phosphor bronze, solder type
- Operating Temperature: -40℃ ~ +125℃
- Certifications: UL, CSA, RoHS, REACH
Product Features
- Dual mounting design: supports both panel cutout installation and direct board/PCB soldering.
- 5x20mm universal fit: compatible with all standard 5×20mm fast/slow-blow cartridge fuses.
- High safety performance: UL94 V-0 flame retardant housing, 3000V AC dielectric strength, meets global safety standards.
- Low contact resistance: nickel-plated phosphor bronze terminals ensure stable conductivity and minimal heat generation.
- Easy maintenance: finger-grip knob design for tool-free fuse replacement; compact size (36.3×15mm) saves space.
- Wide application: ideal for industrial equipment, power supplies, chargers, audio devices and PCB circuit protection.
Application Scope
- Industrial control panels and automation equipment
- Switching power supplies, battery chargers and adapters
- LED drivers, lighting systems and consumer electronics
- Instrumentation, medical devices and communication equipment
- PCB/board-mount circuit protection for 5×20mm fuses
Installation Instructions
- Panel Mount: Insert R3/12E into an 8.5mm panel cutout, secure with the built-in nut, then insert the 5×20mm fuse and tighten the knob.
- Board Mount: Solder the nickel-plated terminals directly to the PCB/board, ensuring firm contact to avoid virtual connections.