10x38mm Panel Mount Fuse Holders | 30A 600V Industrial High Voltage Fuse Base
Industrial grade 10x38mm panel mount fuse holders with bakelite UL94 V0 flame retardant housing and 0.8mm thick phosphor bronze terminals, 30A/32A 600V AC/DC rated, 3000V withstand voltage, designed for industrial power distribution, PV systems and high voltage circuit overcurrent protection.
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strong>Panel Mount Fuse Holders</strong> for 10x38mm cartridge fuses are heavy-duty panel-installed circuit protection components built for medium to high voltage electrical systems. This 10x38 fuse holder adopts high-temperature bakelite insulating base paired with 0.8mm thick phosphor bronze conductive terminals, delivering excellent insulation strength, high voltage endurance and reliable overcurrent protection for both AC and DC circuits. Its standard panel cutout design and robust mechanical performance make it widely used in industrial control cabinets, high-voltage power supplies, power distribution systems and new energy equipment.</p>
. This 10×38 fuse holder adopts high-temperature bakelite insulating base paired with 0.8mm thick phosphor bronze conductive terminals, delivering excellent insulation strength, high voltage endurance and reliable overcurrent protection for both AC and DC circuits. Its standard panel cutout design and robust mechanical performance make it widely used in industrial control cabinets, high-voltage power supplies, power distribution systems and new energy equipment.
Core Product Features
- Compatible with standard 10×38mm glass and ceramic cartridge fuses, covers mainstream medium-high voltage protection specifications
- Rated 30A / 32A at 600V AC/DC, suitable for high-voltage industrial circuit and power distribution protection
- Bakelite (phenolic resin) housing, UL94 V0 flame retardant grade, excellent high-temperature resistance and arc suppression performance
- 0.8mm thick phosphor bronze terminals, reinforced structure, 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 industrial electronics safety and environmental protection requirements
Compared with low-voltage small-size panel fuse holders, this high-voltage model has significantly upgraded voltage endurance and current carrying capacity, adapting to harsher industrial high-voltage operating environments. Its bakelite housing provides outstanding arc resistance and thermal stability, making it a standard protection solution for high-voltage power supply and industrial distribution circuits.
Full Technical Specifications
| Specification Item | Parameter Value |
|---|---|
| Model | R3-18 |
| Compatible Fuse | 10 × 38mm glass / ceramic cartridge fuse |
| Rated Current | 30A / 32A |
| Rated Voltage | 600V AC / DC |
| Breaking Capacity | 50A |
| Power Frequency Withstand Voltage | 3000V AC |
| Housing Material | Bakelite, UL94 V0 flame retardant |
| Terminal Material | 0.8mm thick phosphor bronze |
| Contact Resistance | ＜ 5 mΩ |
| Insulation Resistance | ＞ 100 MΩ |
| Mounting Method | Panel mount, threaded nut fixing |
Selection & Application Guidance
When selecting a 10x38mm panel mount fuse holder, first confirm the fuse size, system rated voltage and operating current. For circuits above 500V, bakelite housing models with sufficient voltage withstand rating must be selected to avoid insulation breakdown risks. Choose a 10x38mm 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 high-temperature and high-voltage industrial environments, prioritize products with UL94 V0 grade housing and high insulation resistance to ensure 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 cabinets and automation equipment high-voltage circuits
- High-voltage switching power supplies and power distribution equipment
- Solar PV combiner boxes and battery energy storage system protection
- EV charging stations and new energy auxiliary power systems
- Test instruments and laboratory high-voltage power supplies
- Telecom base stations and communication power equipment
- Industrial automation control and medium-voltage distribution units
Installation & Maintenance Instructions
1. Select a 10x38mm 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 does this panel mount fuse holder support?
A1: It is compatible with all standard 10×38mm glass and ceramic cartridge fuses, which is a widely used specification for medium-high voltage industrial circuit protection.
Q2: What are the rated current and voltage?
A2: The rated current is 30A / 32A, and the rated voltage reaches 600V for both AC and DC, covering most industrial high-voltage power and distribution 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 for high-voltage environments.
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 high-voltage circuits.
Q5: What material and thickness are the terminals?
A5: The terminals are made of 0.8mm thick phosphor bronze, with reinforced structure, 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 cabinets, high-voltage power supplies, power distribution equipment, solar PV, energy storage systems, charging stations and various medium-high voltage AC/DC circuit overcurrent protection.
