447-S-H-FA24-180804-300A
ETA
The E-T-A 447-S-H-FA24-180804-300A is a 1-pole thermal magnetic circuit breaker rated for 300A and 28VDC. It features a chassis mount design and push-to-reset actuator.
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This E-T-A 447-S-H-FN-300A is a single-pole, thermal-magnetic circuit breaker with a chassis mount design. It is rated for a maximum current of 300A and a voltage of 28VDC.
The circuit breaker utilizes a push-to-reset actuator and offers a thermal-magnetic tripping mechanism. It has an interrupting capacity of 10,000A and operates within an ambient temperature range of -55°C to +75°C.
Key electrical specifications include an insulation voltage of 1,000V for the operating area and between main circuit and auxiliary contacts, with an insulation resistance greater than 100 MΩ at 500V DC. The device offers degrees of protection IP40 for the operating area and IP00 for the terminal area.
Mechanical and environmental resilience are demonstrated through vibration resistance of 10g (without auxiliary contacts) and 4g (with auxiliary contacts), shock resistance of 50g (without auxiliary contacts) and 20g (with auxiliary contacts), and compliance with corrosion and humidity test standards. The typical mechanical life is rated at 2,000 operations.
| 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 300A.
It uses a thermal magnetic trip mechanism.
It is a chassis mount device.
The operating temperature range is from -55°C to +75°C.
It is approved by CSA C22.2 No 235 and UL1077.
The interrupting capacity is 10,000 A.