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This E-T-A 449-K-H-FN-500A is a single-pole thermal-magnetic circuit breaker designed for high-current DC applications. It offers a robust 500A current rating and operates at up to 28VDC.
The breaker utilizes a thermal-magnetic tripping mechanism for reliable overcurrent protection. It features a convenient push-to-reset actuator for manual operation and is designed for chassis mounting, making it suitable for integration into various systems.
Typical applications for this type of circuit breaker include heavy-duty vehicles, battery systems, and process control equipment where dependable circuit protection is essential. The unit is built to withstand demanding environments, as indicated by its operating temperature range of -55 to +75 °C and an interrupting capacity of 10,000A.
Compliance information includes CSA C22.2 No 235 and UL1077 approvals. While RoHS, REACH, and MSL status are listed, these should be verified for critical applications.
| 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 500 A.
The voltage rating is 28 V.
It is a Thermal Magnetic circuit breaker.
This circuit breaker has 1 pole.
The actuator type is Push to Reset.
The mounting type is Chassis Mount.
The operating temperature range is -55 to +75 °C.