5x20mm Glass Fuse Panel Mount Fuse Holders | 10A 250V IP40 Industrial Fuse Base

Panel mount fuse holders for 5x20mm glass cartridge fuses are compact panel-installed circuit protection components for low-voltage electrical systems. This 5×20 glass fuse holder adopts high-toughness PA insulating housing paired with high-conductivity metal terminals, delivering stable contact, reliable insulation and durable overcurrent protection for AC circuits. With IP40 dust protection, multiple international safety certifications and wide temperature adaptability, it is widely used in industrial control equipment, switching power supplies, household appliances and instrumentation front panels.

Core Product Features

• Compatible with standard 5×20mm glass and ceramic cartridge fuses, covers mainstream low-voltage protection specifications
• Rated 10A at 250V AC, 2.5W rated power dissipation, stable performance under continuous operation
• Housing made of PA engineering plastic, UL94 V0 flame retardant grade, excellent impact resistance and insulation performance
• IP40 degree of protection, prevents solid foreign objects and dust from entering, improves reliability in industrial environments
• Contact resistance below 5mΩ, low power loss, stable electrical performance under long-term load
• Wide operating temperature range from -30℃ to +85℃, adapts to various indoor and industrial working environments
• Fits panel thickness from 0.8mm to 2.8mm, compatible with most standard equipment panel designs
• Certified to EN 60127-6, UL 512 and C22.2 No.39 standards, meets global market access requirements
• Standard black colour, custom colours available on request to match different equipment appearance designs

Compared with bakelite panel fuse holders, this PA nylon model has better mechanical toughness and impact resistance, making it more suitable for automated assembly and export equipment with strict certification requirements. Its IP40 dust-proof design effectively extends service life in industrial workshop environments, and multiple international safety certifications simplify product compliance approval for global markets.

Full Technical Specifications

Selection & Application Guidance

When selecting 5x20mm panel mount fuse holders, first confirm the fuse size, system rated voltage and operating current. For export equipment requiring international safety certification, this EN/UL/CSA certified model is recommended to simplify market compliance approval. Choose a 5x20mm 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 used in dusty industrial environments, IP40 dust-proof models are preferred to extend service life. Verify that the panel thickness falls within the 0.8–2.8mm range to ensure firm installation and stable contact performance.

Typical Application Scenarios

• Industrial control panels and small automation equipment circuits
• Switching power supplies, adapters and power distribution units
• Test instruments, meters and laboratory power supply circuits
• Household appliances and medium-power electrical equipment
• Communication equipment and network terminal power protection
• LED lighting drivers and low-voltage power modules
• Medical equipment auxiliary circuits and control systems

Installation & Maintenance Instructions

1. Select a 5x20mm 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 fix it properly 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.

PTF_30-Panel-fuse-holder

Frequently Asked Questions

Q1: What fuse size do these panel mount fuse holders support?

A1: They are compatible with all standard 5×20mm glass and ceramic cartridge fuses, which is the most widely used small-size specification for low-voltage equipment and control circuit protection.

Q2: What are the rated current and voltage?

A2: The rated current is 10A, and the rated voltage is 250V AC, covering most low-voltage electrical equipment protection scenarios.

Q3: What material is the housing made of?

A3: The housing is made of PA (nylon) engineering plastic with UL94 V0 flame retardant grade, featuring excellent impact resistance, insulation performance and mechanical toughness.

Q4: What is the protection degree of this product?

A4: It has an IP40 degree of protection, which prevents solid foreign objects larger than 1mm and dust from entering, improving operational reliability in industrial workshop environments.

Q5: Does this product have international safety certifications?

A5: Yes, it is certified to EN 60127-6, UL 512 and C22.2 No.39 standards, meeting the market access requirements of major global regions.

Q6: What panel thickness is suitable for installation?

A6: It fits panel thickness from 0.8mm to 2.8mm, compatible with most standard equipment metal and plastic panel designs.

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 low-voltage AC circuit overcurrent protection.