Panel Mount Fuse Holder for 6x30mm DC AC Tube Fuses
Model: R3-53</strong> Heavy‑duty panel mount fuse holder for standard <strong>6x30mm glass & ceramic tube fuses</strong>. Rated <strong>20A, 250V AC /125V DC</strong>, Bakelite UL94‑V0 housing with 0.8mm phosphor bronze terminals. M15*1.0 panel thread, front‑side fuse replacement for DC & AC circuit over‑current protection.
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R3-53 Panel Mount Fuse Holder for 6x30mm Glass & Ceramic DC & AC Tube Fuses
The R3-53 panel mount fuse holder is a heavy‑duty panel‑mount fuse holder engineered for standard 6×30 mm glass and ceramic tube fuses, suitable for both DC and AC circuit over‑current protection. It is widely adopted for power supplies, battery chargers, industrial instruments, audio equipment and household appliances requiring reliable inline fuse protection.
Constructed with flame‑retardant Bakelite base UL‑94V‑0, thick 0.8 mm phosphor bronze terminals deliver stable electrical contact and extended service life. It features M15*1.0 panel‑mount thread for simple through‑hole installation on cabinets and equipment enclosures. Fuse can be swapped from front side without opening device housing, making maintenance fast and convenient.
Superior electrical performance: 3000 VAC dielectric withstand voltage, contact resistance below 5 mΩ and insulation resistance higher than 100 MΩ. Rated current 20 A, rated voltage 250 V AC /125 V DC, split current 50 A for short‑circuit protection. This reliable fuse holder offers stable performance for continuous operation in different working environments.
Note: Product specifications subject to change without prior notice.
Key Electrical Specifications
| Model | R3-53 |
| Fuse Compatibility | 6 x 30 mm glass / ceramic tube fuse |
| Rated Current | 20A |
| Rated Voltage | 250V AC / 125V DC |
| Split Current | 50A |
| Withstand Voltage | 3000VAC |
| Contact Resistance | < 5mΩ |
| Insulation Resistance | > 100 MΩ |
| Housing Base Material | Bakelite (UL‑94V‑0) |
| Terminal Material | 0.8 mm phosphor bronze |
| Panel Mount Thread | M15*1.0 |
Mechanical & Material Features
- M15*1.0 thread panel‑through mounting, quick installation for cabinet enclosures
- UL‑94V‑0 Bakelite base, flame‑retardant for high‑safety AC‑DC circuit protection
- 0.8 mm thick phosphor bronze terminals, low contact resistance, durable long‑term performance
- Front‑side fuse replacement, no need to disassemble equipment housing
- Fits industry‑standard 6×30 mm glass and ceramic fuse tubes
Application Scenarios
- DC‑AC switching power supplies & battery chargers
- Industrial control instruments and automation equipment
- Audio & speaker devices
- Household electrical appliances
- Other DC‑AC over‑current protection circuits
Frequently Asked Questions
What is the model of this panel‑mount fuse holder?
The model is R3‑53. This R3‑53 panel mount fuse holder is designed for standard 6×30 mm glass and ceramic tube fuses, works well for both DC and AC circuit over‑current protection.
What size fuse fits this R3‑53 fuse holder?
This holder is designed for standard 6×30 mm glass and ceramic tube fuses, works well for both DC and AC circuit over‑current protection.
What is the rated current and voltage of this R3‑53 fuse holder?
Rated current is 20A. Rated voltage is 250V AC and 125V DC. Split current reaches 50A for short‑circuit protection.
What is the panel mounting thread specification?
The panel mount thread is M15*1.0, made for through‑panel installation on equipment cabinets and enclosures.
What materials are the housing and terminals made of?
The housing base is Bakelite with UL‑94V‑0 flame retardant rating. Terminals are 0.8mm phosphor bronze for stable electrical conductivity.
Do I need to take apart the whole device to change the fuse?
No. You just unscrew the cap from the front panel side to replace fuses directly, there is no need to disassemble the cabinet or equipment housing.
Where is this R3‑53 panel fuse holder commonly used?
Widely used for power supplies, battery chargers, industrial instruments, audio equipment and household appliances for DC and AC over‑current protection.
