OS400J21

Name: OS400J21
Brand: ABB
SKU: OS400J21

The ABB OS400J21 is a 3-pole, front-operated switch fuse designed for high-performance protection in electrical systems. With a current rating of 400 A and robust insulation, it ensures reliable and efficient power distribution.

Product ModelOS400J21

Material Number1SCA022755R3070

Product ID88080

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
1. High Current RatingThe ABB OS400J21 supports a high current rating of 400 A, making it suitable for demanding electrical applications.
2
2. Robust InsulationEquipped with robust insulation, this switch fuse offers reliable protection against electrical shocks and faults.
3
3. Front-Operated MechanismThe front-operated mechanism provides easy access and control, enhancing user convenience and safety.
4
4. Class J Fuse SystemUtilizing a Class J fuse system, the OS400J21 ensures precise and reliable disconnection in case of overcurrent conditions.
5

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Pollution Degree

Product Net Width

254 mm

Product Net Height

230 mm

Product Net Depth / Length

176 mm

Product Net Weight

6.4 kg 14.11 lb

Conventional Free-air Thermal Current (Ith)

Î = 40 Â°C 400 A