Panel Fuse Holder & 6×30 Fuse Blocks | 250V Industrial Grade Fuse Base
Industrial grade panel fuse holder and 6×30 fuse blocks with bakelite UL94 V0 flame retardant housing and 0.5mm phosphor bronze terminals, 10A 250V/125V AC/DC rated, 3000V withstand voltage, designed for industrial power supplies, control panels and distribution circuit overcurrent protection.
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The panel fuse holder series 6×30 fuse blocks are classic panel-installed circuit protection components for 6×30mm cartridge fuses. This 6x30mm panel fuse holder adopts high-temperature bakelite insulating base paired with 0.5mm phosphor bronze conductive terminals, delivering reliable insulation performance, stable contact and durable overcurrent protection for low-voltage AC and DC circuits. With standard panel cutout design and flame retardant bakelite housing, they are widely used in industrial control equipment, switching power supplies, power distribution units and instrumentation front panels.
Core Product Features
- Compatible with standard 6×30mm glass and ceramic cartridge fuses, covers mainstream low-voltage medium-power protection specifications
- Rated 10A at 250V/125V AC/DC, wide voltage compatibility, strong versatility across different application scenarios
- Bakelite (phenolic resin) housing, UL94 V0 flame retardant grade, excellent high-temperature resistance and arc suppression performance
- 0.5mm thick phosphor bronze terminals, high elasticity, stable clamping force, contact resistance below 5mΩ
- 3000V AC power frequency withstand voltage, insulation resistance above 100MΩ, high operational safety
- 50A breaking capacity, effectively interrupts fault current to protect downstream electrical components
- Threaded panel mount structure, standard cutout size, easy front-panel fuse replacement without opening enclosure
- Fully RoHS compliant, meets global electronics safety and environmental protection requirements
Compared with PCB mount fuse clips, this panel type model provides more flexible installation positions and easier daily maintenance. Its bakelite housing has outstanding thermal stability and arc resistance, making it a standard protection solution for low-voltage control circuits and bench-top power supply units.
Full Technical Specifications
| Specification Item | Parameter Value |
|---|---|
| Model | R3-13 |
| Compatible Fuse | 6 × 30mm glass / ceramic cartridge fuse |
| Rated Current | 10A |
| Rated Voltage | 250V / 125V AC / DC |
| Breaking Capacity | 50A |
| Power Frequency Withstand Voltage | 3000V AC |
| Housing Material | Bakelite, UL94 V0 flame retardant |
| Terminal Material | 0.5mm thick phosphor bronze |
| Contact Resistance | ＜ 5 mΩ |
| Insulation Resistance | ＞ 100 MΩ |
| Mounting Method | Panel mount, threaded nut fixing |
Selection & Application Guidance
When selecting panel fuse holder and 6×30 fuse blocks, first confirm the fuse size, system rated voltage and operating current. Choose a 6x30mm fuse with appropriate current rating based on actual load, and reserve a 1.25–1.5 times safety margin to prevent overheating during continuous operation. For equipment requiring front-panel fuse replacement, panel mount models are the preferred choice as they allow quick fuse replacement without opening the equipment enclosure. For arc suppression and insulation-sensitive scenarios, bakelite housing models are recommended for better high-temperature resistance and operational safety. Verify that the panel cutout matches the standard mounting size to ensure firm installation and stable contact performance.
Typical Application Scenarios
- Industrial control panels and medium-power automation equipment circuits
- Switching power supplies, industrial power modules and power distribution units
- Test instruments and laboratory power supply circuits
- Household appliances and medium-power electrical equipment
- Communication equipment and network power supply systems
- LED lighting drivers and low-voltage power modules
- Medical equipment auxiliary circuits and control systems
Installation & Maintenance Instructions
1. Select a 6x30mm cartridge fuse with correct current and voltage rating according to circuit protection requirements.
2. Drill a standard mounting hole on the equipment panel, insert the fuse holder from the front side, and tighten the fixing nut from the back to ensure firm installation.
3. Connect circuit wires tightly to the rear terminals and apply proper insulation treatment to prevent short circuit hazards.
4. Insert the fuse fully into the holder and tighten the end cap to ensure reliable contact and insulation performance.
5. Do not operate beyond the rated voltage and current range to prevent insulation breakdown and safety risks.
6. Disconnect the power supply completely before fuse replacement to avoid electric shock and short circuit damage.
7. Inspect terminals and fuses periodically for looseness, oxidation or overheating signs, and replace components promptly if abnormalities are found.
Frequently Asked Questions
Q1: What fuse size do these panel fuse holder and fuse blocks support?
A1: They are compatible with all standard 6×30mm glass and ceramic cartridge fuses, which is a widely used specification for low-voltage medium-power circuit protection.
Q2: What are the rated current and voltage?
A2: The rated current is 10A, and the rated voltage supports 250V and 125V for both AC and DC, covering most medium-power electrical equipment protection scenarios.
Q3: What material is the housing made of?
A3: The housing is made of bakelite (phenolic resin) with UL94 V0 flame retardant grade, featuring excellent high-temperature resistance, arc suppression and insulation performance.
Q4: What is the withstand voltage and insulation resistance?
A4: It supports 3000V AC power frequency withstand voltage, with insulation resistance above 100MΩ, providing high insulation strength and operational safety for low-voltage circuits.
Q5: What material and thickness are the terminals?
A5: The terminals are made of 0.5mm thick phosphor bronze, with high elasticity, contact resistance below 5mΩ, and stable clamping force for long-term use.
Q6: What mounting method does it adopt?
A6: It adopts panel mount design with threaded nut fixing structure, which can be directly installed on equipment front panels and control cabinet surfaces, with firm installation and convenient daily maintenance.
Q7: What are the main application fields?
A7: Widely used in industrial control equipment, switching power supplies, test instruments, household appliances, communication equipment and various medium-power low-voltage AC/DC circuit overcurrent protection.
