2H38L Fast DC Fuse (200A-500A)250V300V DC FUSE LINK

2H38L Fast DC Fuse (200A-500A)250V300V DC FUSE LINK

描述

2H38L Fast DC Fuse (200A–500A) 250V / 300V DC FUSE LINK

2H38L Series DC(EV)  fuse

1. Purpose and Use

The 2H38L series fuse is suitable for rated DC voltage up to 250V (max 300V), and rated current from 200A to 500A. Breaking capacity: 10kA. It is widely used in chargers, power supplies, vehicle batteries, vehicle circuit systems, and inverter protection. It offers strong current limiting, large breaking capacity, and fast short-circuit response. It withstands temperature, mechanical, current, and chemical shocks. Standards: ISO 8820, JASO D622, GB/T31465.

2. Normal Working Conditions

Ambient temperature for operation: -5℃ to +40℃. Allowable conditions: -40℃ to +125℃.

3. Use Category

Full-range fast fuse (gR).

4. Structural Characteristics

The fuse tube is made of high-temperature ceramic material with strong hardness and flame retardancy. The melt is 99.99% pure silver with a variable cross-section, sealed in high-purity quartz sand and arc-extinguishing chemicals. Silver-plated contact surfaces ensure excellent conductivity and lower temperature rise. Both ends of the melt are spot-welded to the contacts for safe and reliable short-circuit fault interruption.

5. Agreed Current and Time

Note: Customer-specific agreed current/time values can be discussed.

Test Current (A) Fusing Time (s)
Min Max
1.1In 14400
2In 1 300
3In 0.2 30
5In 0.05 1

Note: Fuse characteristics vary with environment and application design. All values are rated at 25℃.

6. Main Parameters
No. Product Model Rated Current (A) Rated Voltage (DC) Voltage Drop (110%) (mV) Breaking Capacity (kA)
1 2H38L200 200 300V / 250V 113 10
2 2H38L250 250 300V / 250V 105 10
3 2H38L300 300 300V / 250V 102 10
4 2H38L350 350 300V / 250V 97 10
5 2H38L400 400 300V / 250V 88 10
6 2H38L450 450 300V / 250V 95 10
7 2H38L500 500 300V / 250V 77 10

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