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The Schurter Inc. 4430.0557 is a 2-pole thermal circuit breaker with a panel mount design. It offers a rated voltage of 240 VAC and 60 VDC, with a current rating range of 0.05 to 20 A AC. The breaker type is thermal, and it features a rocker actuation.
Key technical specifications include a conditional short circuit capacity of 1 kA at 240 VAC and various short circuit capacities (Icn) depending on the current rating and voltage. It has a mechanical lifetime of 50,000 switching cycles and electrical lifetimes of 50,000 cycles for both AC and DC.
The operating temperature range is -10 °C to 55 °C, with a storage temperature range also from -10 °C to 55 °C. Environmental protection includes IP40 on the front side, or IP54 with a factory-mounted protection cover. The unit exhibits vibration resistance and shock resistance according to IEC standards.
This circuit breaker is suitable for applications requiring reliable thermal overload protection. Its robust construction and compliance with various approval agencies like UL and CSA make it a dependable choice for industrial appliances, power tools, and equipment for construction.
240 VAC and 60 VDC.
Panel mount.
-10°C to 55°C.
At 240VAC, for In<3A: 10xIn; for In≥3A: 300A. At 60VDC, for In<3A: 10xIn; for In≥3A at 48VDC: 120A.
CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077.
4 kVAC.
50,000 switching cycles.