Midget Panel Mount Fuse Holder | 5x20mm 10A 250V AC Flame Retardant
Compact midget panel mount fuse holder for 5x20mm glass/ceramic cartridge fuses, UL94 V-1 bakelite body with nickel plated brass terminals, 10A 250V AC rated, twist-off cap design for panel mounting circuit protection, fully certified.
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The midget panel mount fuse holder is a compact and reliable circuit protection component designed for standard 5x20mm glass and ceramic cartridge fuses. This panel mount fuse holder adopts heat-resistant bakelite insulating housing with high-conductivity nickel plated brass terminals, delivering stable electrical connection and reliable overcurrent protection for panel-mounted equipment. Widely used in industrial control panels, household appliances, power supplies and audio equipment, it features small footprint, durable construction and tool-free fuse replacement, making it an ideal choice for low-to-medium voltage circuit protection.
Key Features of Midget Panel Mount Fuse Holder
- Compatible with standard 5 x 20mm glass and ceramic cartridge fuses, the most widely used midget fuse specification
- Rated parameters: 10A maximum current, 250V AC rated voltage, covering most low-voltage control and power scenarios
- Housing material: Bakelite (phenolic resin), UL94 V-1 flame retardant grade, excellent heat, vibration and chemical resistance
- Terminal material: Nickel-plated brass, low contact resistance, high conductivity and strong anti-oxidation performance
- Twist-off cap design, tool-free fuse replacement, convenient for later maintenance and inspection
- Panel mount installation, standard 13mm cut-out diameter, easy to install on various panels and enclosures
- Wide operating temperature range, adapts to harsh industrial and outdoor working environments
- Compliant with UL, CSA, CE, CCC and RoHS international safety standards
Compared with PCB mount fuse holders, this panel type fuse base provides more flexible installation positions and easier maintenance access. Its compact midget design saves valuable panel space, making it especially suitable for compact equipment enclosures and dense control panel layouts.
Main Electrical Specifications
| Item | Parameter |
|---|---|
| Model | R3/11C |
| Compatible Fuse | 5 x 20mm glass / ceramic cartridge fuse |
| Rated Current | 10A |
| Rated Voltage | 250V AC |
| Housing Material | Bakelite (phenolic resin), UL94 V-1 flame retardant |
| Terminal Material | Brass, nickel-plated surface |
| Mounting Type | Panel mount (threaded fixing) |
| Panel Cut-out Diameter | 13 mm |
| Operating Temperature Range | -55℃ ~ +85℃ |
| Fuse Replacement | Twist-off cap, tool-free operation |
| Safety Certifications | UL, CSA, CE, CCC, RoHS compliant |
Selection & Application Guide
When selecting a panel mount fuse holder, first confirm the fuse size, system rated voltage and working current, as well as the panel installation space. For high-temperature and chemically corrosive environments, bakelite housing models with higher flame retardant grade are recommended. Always match the fuse rating with the actual working current of the circuit, reserving a 1.25-1.5 times safety margin to avoid premature fuse failure or insufficient protection. Ensure that the panel cut-out size matches the 13mm standard diameter to guarantee firm installation and good sealing performance.
Application Scenarios
- Industrial control panels and automation equipment
- Household appliances such as ovens, refrigerators and small kitchen appliances
- Switching power supplies, linear power supplies and PSU modules
- Audio / visual equipment and professional audio systems
- Lighting systems and commercial lighting control cabinets
- Medical equipment and laboratory instruments
- Automotive auxiliary circuits and on-board power systems
Installation & Usage Notes
1. Drill a 13mm diameter hole on the installation panel according to the dimension requirements, and ensure the panel surface is flat and burr-free.
2. Insert the fuse holder from the front of the panel, and tighten the fixing nut from the back to ensure firm installation without loosening.
3. Connect the circuit wires to the rear terminals firmly, and make proper insulation treatment to avoid short circuit risks.
4. Select a matching 5x20mm fuse with appropriate current rating, put it into the holder, and screw on the end cap tightly.
5. Do not use the fuse holder beyond its rated voltage and current range to prevent insulation breakdown and safety hazards.
6. Disconnect the power supply before replacing the fuse to avoid electric shock and short-circuit damage. The twist-off cap allows quick fuse replacement without additional tools.
7. Regularly check the terminals and cap for loosening or oxidation, and replace the product in time if any abnormality is found.
Frequently Asked Questions
Q1: What size of fuse does this midget panel mount fuse holder fit?
A1: It is compatible with standard 5x20mm glass and ceramic cartridge fuses, which is the most common midget fuse specification for low-voltage control circuits.
Q2: What are the rated voltage and current of this fuse holder?
A2: The rated current is 10A, and the rated voltage is 250V AC, covering most low-voltage industrial and household appliance circuit protection scenarios.
Q3: What material is the housing made of?
A3: The housing is made of bakelite (phenolic resin) with UL94 V-1 flame retardant grade, featuring excellent heat resistance, vibration resistance and chemical corrosion resistance.
Q4: What size of panel hole is required for installation?
A4: It requires a 13mm diameter cut-out on the panel, and is fixed with a threaded nut from the back side for firm installation.
Q5: Is it easy to replace the fuse?
A5: Yes, it adopts a twist-off cap design. You can replace the fuse directly by twisting the cap by hand, no additional tools are needed, which is very convenient for daily maintenance.
Q6: What safety certifications does this product have?
A6: It is certified by UL, CSA, CE and CCC, and is fully RoHS compliant, meeting the safety and environmental requirements of global major markets.
Q7: What is the operating temperature range?
A7: The normal operating temperature range is -55℃ to +85℃, which can adapt to various harsh industrial, outdoor and equipment internal working environments.
