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The Schurter Inc. 4430.3373 is a thermal circuit breaker featuring a 2-pole configuration and a rocker actuation type. Designed for panel mounting, this component provides reliable thermal overload protection.
Key electrical specifications include a rated voltage of 240 VAC and 60 VDC, with a rated current range up to 20 A. The circuit breaker has a conditional short circuit capacity of 1 kA at 240 VAC and a short circuit capacity Icn of 300A at 240 VAC for currents 3A or greater. It boasts a mechanical lifetime of 50,000 switching cycles and electrical lifetimes of 50,000 cycles for both AC and DC operations.
Environmental and mechanical data include a degree of protection of IP40 on the front side, dielectric strength of 4 kVAC, and insulation resistance greater than 100 MΩ at 500 VDC. The operating temperature range is -10 °C to 55 °C. The device is built to withstand vibration and shock according to IEC standards.
This circuit breaker is suitable for applications such as power tools, industrial appliances, power supplies, and equipment for construction and cleaning. Approvals include CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, and UL1077.
The operating voltage is 240VAC and 60VDC.
The allowable operating temperature range is -10°C to 55°C.
The current rating is 15A.
The degree of protection is IP40 according to IEC 60529. With a factory-mounted protection cover it becomes IP54.
The conditional short-circuit capacity (Inc) is 1kA at 240VAC per IEC 60934. The short-circuit capacity (Icn) is 300A for AC currents ≥3A at 240VAC.
The circuit breaker has 2 poles.
