R3/22 Panel Mount Fuse Holders and 10A250V 6X30 Glass Fuses
Industrial‑grade bakelite panel mount fuse holder for 6×30mm glass & ceramic cartridge fuses, UL94 V0 flame‑retardant base, 0.4mm phosphor bronze terminals, rated 10A 250V/125V AC/DC, M15*1.0 threaded panel mounting for industrial cabinets and power equipment over‑current protection.
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Panel mount fuse holder for 6x30mm cartridge fuses adopts high‑temperature bakelite insulating base, built for reliable over‑current protection of low‑voltage AC‑DC systems. This 6×30 fuse base uses 0.4 mm phosphor‑bronze contact terminals, delivering stable contact performance, high‑grade arc‑suppression and excellent dielectric strength. M15*1.0 threaded panel‑mount construction allows quick front‑side fuse replacement without opening equipment housing. Widely deployed in industrial control cabinets, bench‑top power supplies, laboratory instruments and commercial appliance front panels.
Core Product Features
- Compatible with standard 6×30 mm glass / ceramic cartridge fuses, covers mainstream medium‑power low‑voltage protection requirements
- Electrical rating: 10A, 250V / 125V AC/DC; 50A breaking capacity for safe fault‑current interruption
- Bakelite (phenolic resin) base, UL94 V‑0 flame‑retardant grade; superior heat‑resistance and arc‑quenching performance
- 0.4 mm thick phosphor bronze terminals, spring‑contact design, contact resistance below 5 mΩ
- 3000V AC power‑frequency withstand voltage; insulation resistance greater than 100 MΩ for high‑safety operation
- M15*1.0 metric thread panel‑mount, standard panel cut‑out dimension, easy assembly and maintenance
- RoHS‑compliant construction, satisfies global electronics environmental‑protection and safety standards
Bakelite material brings better arc‑resistance and thermal stability versus many plastic fuse holders. The M15*1.0 threaded‑nut mounting ensures firm locking on metal or plastic panels, well‑suited for equipment where high‑temperature and arc‑suppression performance is required.
Full Technical Specifications
| Specification Item | Parameter Value |
|---|---|
| Model | R3‑22 |
| Compatible Fuse | 6 × 30 mm glass / ceramic cartridge fuse |
| Rated Current | 10A |
| Rated Voltage | 250V / 125V AC / DC |
| Breaking Capacity | 50A |
| Power Frequency Withstand Voltage | 3000V AC |
| Housing / Base Material | Bakelite, UL94 V‑0 flame‑retardant |
| Terminal Material | 0.4 mm thick phosphor bronze |
| Contact Resistance | ＜ 5 mΩ |
| Insulation Resistance | ＞ 100 MΩ |
| Mounting Thread | M15*1.0 |
| Mounting Method | Panel mount, threaded nut fixing |
Selection & Application Guidance
When selecting this bakelite panel mount fuse holder for 6×30 mm fuses, verify fuse dimension, system AC‑DC voltage and continuous operating current first. Select matching‑rating 6×30 glass/ceramic cartridge fuses and keep a 1.25‑1.5× safety margin to avoid over‑heating under continuous load. Prefer bakelite‑base variants for applications requiring enhanced arc‑suppression and high‑temperature resistance. Confirm M15*1.0 thread panel cut‑out matches drawing specifications to achieve secure installation and stable electrical contact. This threaded‑nut panel‑mount design enables front‑panel fuse replacement without taking equipment housing apart, which lowers field‑maintenance workload.
Typical Application Scenarios
- Industrial control cabinets and medium‑power automation‑equipment circuits
- Switching power supplies, adapters and power‑distribution units
- Test instruments and laboratory bench power‑supply circuits
- Commercial household appliances and medium‑power electrical equipment
- Communication equipment and network‑device power‑input protection
- LED power drivers and low‑voltage medium‑power modules
- Medical auxiliary equipment and low‑voltage control‑system circuits
Installation & Maintenance Instructions
1. Select a correct‑rating 6×30 mm glass / ceramic cartridge fuse according to your circuit‑protection requirements.
2. Machine M15*1.0 compatible mounting hole on equipment panel; insert fuse holder from front side and fasten rear fixing nut for firm installation.
3. Secure wiring to rear terminals properly and add required insulation protection to prevent short‑circuit hazards.
4. Insert cartridge fuse fully and tighten cap to guarantee reliable contact and insulation performance.
5. Never operate beyond published rated voltage‑current limits to avoid insulation breakdown and safety risks.
6. Cut off full power supply before fuse replacement to prevent electric shock and accidental short‑circuit damage.
7. Periodically inspect terminals and fuses for looseness, oxidation or thermal over‑heating signs; replace components promptly when anomalies are found.
Frequently Asked Questions
Q1: What fuse size fits this panel mount fuse holder?
A1: It accepts standard 6×30 mm glass and ceramic cartridge fuses, widely‑used for medium‑power low‑voltage circuit‑protection applications.
Q2: What are its electrical ratings?
A2: Rated current 10A; rated voltage 250V /125V for both AC and DC; breaking capacity 50A.
Q3: Why bakelite (phenolic resin) base?
A3: Bakelite base with UL94 V‑0 flame‑retardant grade delivers outstanding arc‑suppression, high‑temperature resistance and dielectric strength compared with ordinary plastic housings.
Q4: What are terminal specifications?
A4: Terminals are made of 0.4 mm‑thick phosphor bronze; contact resistance is less than 5 mΩ with stable spring clamping force.
Q5: What is the mounting thread specification?
A5: M15*1.0 metric thread panel‑mount design, fixed by lock‑nut from rear side of equipment panel.
Q6: What about insulation‑related electrical‑performance?
A6: 3000V AC power‑frequency withstand voltage; insulation resistance >100 MΩ to guarantee safe low‑voltage‑circuit‑operation.
Q7: What are main application‑fields?
A7: Applied for industrial‑control cabinets, switching power‑supplies, test instruments, household appliances, communication‑equipment and various medium‑power AC‑DC over‑current‑protection circuits.
