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The E-T-A 449-K-H-FN-125A is a high-performance single-pole thermal-magnetic circuit breaker designed for reliable circuit protection. It operates with a current rating of 125A and a voltage rating of 28VDC, making it suitable for various heavy-duty applications.
This breaker features a tease-free, trip-free, press-to-reset snap action mechanism with a special dual-button manual release to prevent unintended disconnection. The actuator type is push-to-reset, and it is designed for chassis mounting.
Key technical specifications include an interrupting capacity of 10,000A and an operating temperature range of -55 to 75°C. The degree of protection for the operating area is IP40.
Typical applications for this series include heavy-duty vehicles, battery systems, and process control. Approvals include CSA C22.2 No 235 and UL1077.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The current rating is 125A.
The voltage rating is 28VDC.
It is a thermal-magnetic circuit breaker.
It has 1 pole.
The actuator type is push to reset.
It is chassis mount.
Approvals include CSA C22.2 No 235 and UL1077.
The operating temperature range is -55 to 75°C.
The interrupting capacity is 10,000A.
The degree of protection is IP40.