5H20L Fast-Acting Fuse 50A–150A 450V/500V 20kA

Description

 5H20L Fast-Acting Fuse – 50A–150A 450V/500V 20kA High Speed Protection

 Overview of 5H20L Fast-Acting Fuse

 Product Specifications

• Model: 5H20L
• Current Rating: 50A, 63A, 80A, 100A, 125A, 150A
• Rated Voltage: 450V DC, 500V DC
• Breaking Capacity: 20kA
• Fuse Characteristic: Fast-Acting
• Structure: Ceramic tube enclosed, compact size
• Application: New energy vehicle, ESS, industrial DC circuit
• Standard: IEC, UL international safety certification

 Core Advantages

1. Fast-acting response, quickly isolate short-circuit current
2. 20kA high breaking capacity, adapt industrial heavy-load faults
3. Matches mainstream 450V/500V new energy voltage platform
4. 50A-150A full current range, medium-power universal model
5. Anti-vibration & high temperature resistance, suitable for harsh working conditions

 Application Scenarios

• New energy vehicle DC power circuit protection
• Energy storage system (ESS/BESS) internal DC loop
• 450V/500V industrial DC power supply equipment
• EV charging pile auxiliary circuit protection
• Renewable energy DC power distribution system

 FAQ

5H20L Fast-Acting Fuse | 50A-150A 450V/500V DC 20kA

Full Product Description

Key Features

• Current Range: 50A – 150A
• Voltage Rating: 450V / 500V
• Breaking Capacity: 20kA
• aR fast‑acting semiconductor protection type
• Excellent current‑limiting and low I²T
• High‑strength ceramic housing, flame‑retardant
• High conductivity & low power loss
• Bolt‑down mounting for stable connection
• RoHS compliant, suitable for industrial use

Applications

• DC power supply systems
• UPS and backup power
• Inverters & converters
• Battery packs and battery protection
• Power electronic equipment
• Industrial control systems
• Electrical control cabinets
• Communication power equipment

Why Choose EssFuse?

5H20L Series DC automobile fuse

1. Purpose and use

This series of fuses are suitable for rated DC voltage up to 500V (450V), in the line with rated current up to 150A, the breaking capacity is 50kA, which is the comprehensive protection of on-board battery, on-board line system and inverter. At the same time, it has the characteristics of strong current limiting capacity, high breaking capacity, fast short-circuit breaking speed, and it can withstand temperature shock, mechanical vibration shock, current shock, chemical load, etc. This series of products conforms to ISO 8820 and JASO D622 and GB/T31465. Applicable standards for environmental reliability: GB/T31465.6, ISO 8820-8, JASO D622, UL248-20.

2. Normal working conditions

Normal operating conditions of ambient air temperature: -5 ℃ ~ 40 ℃; allowable operating conditions: -40 ℃ ~ +125 ℃;

3. Use category

Full range fast fuse

4. Structural characteristics

The melting tube of the product is made of high-temperature resistant ceramic material, with high flame-retardant performance and strong hardness.

The melt is sealed in the melting tube with a variable cross-section melt made of 99.99% pure silver. The melting tube is filled with chemically treated high-purity quartz sand and specially treated chemical materials as arc extinguishing medium. The contact surface is silver plated to ensure reliable electrical performance, greatly reducing temperature rise and power consumption; Both ends of the melt are firmly connected with the contact by spot welding, which greatly enhances the safety and reliability of breaking short circuit fault current.

5. Agreed current and agreed time

Note: The agreed current and agreed time required by the customer can be negotiated with our company.

The characteristics of fuse will vary according to the use environment and surrounding design requirements. The performance characteristics are obtained according to the rated constant temperature of 25 ℃.

6. Main parameters