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The E-T-A 446-S-H-N-400A is a single-pole, thermal-magnetic circuit breaker with a push-to-reset actuator. It is designed for chassis mounting and operates at a voltage rating of 28V DC with a current rating of 400A.
This circuit breaker offers a high interrupting capacity of 10,000A and operates within an ambient temperature range of -55°C to +75°C. It meets various environmental and mechanical standards, including IP40 protection for the operating area and IP00 for the terminal area, and has undergone vibration, shock, corrosion, and humidity testing.
Key electrical specifications include a dielectric strength of 1,000V AC for both the operating area and main circuit to auxiliary contacts, and an insulation resistance greater than 100 MΩ at 500V DC. The typical life is rated at 1,000 operations at nominal current and 2,000 operations mechanically.
Typical applications for this robust circuit breaker include heavy-duty vehicles, battery systems, and process control. It is approved by 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 voltage rating is 28 V.
The current rating is 400 A.
It uses a thermal magnetic trip mechanism.
It is chassis mount.
The operating temperature range is -55°C to +75°C.
The interrupting capacity is 10,000 A.
It is rated for 1.5 kV.