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The Schurter Inc. 4430.2979 is a thermal circuit breaker designed for reliable overload protection. It features a 2-pole configuration and a rated current of 20A, suitable for AC applications up to 240 VAC and DC applications up to 60 VDC.
This circuit breaker utilizes thermal tripping and rocker actuation for user-friendly operation. It offers a mechanical lifetime of 50,000 switching cycles and overload endurance. The device is designed for snap-in mounting, with specific mounting hole dimensions provided for integration into panels.
Key electrical specifications include a conditional short circuit capacity of 1 kA at 240 VAC and various Icn ratings depending on the current and voltage conditions. Environmental protection is rated at IP40 on the front side, which can be increased to IP54 with a factory-mounted protection cover. The operating temperature range is -10 °C to 55 °C.
Applications for this circuit breaker include power tools, industrial appliances, power supplies, and equipment for construction and cleaning. Its robust design and compliance with relevant standards make it a suitable choice for demanding environments.
The circuit breaker is rated for 240VAC and 60VDC.
The allowable operating temperature range is -10°C to 55°C.
The rated current is 2A, based on manufacturer page data.
It uses a thermal tripping mechanism.
The circuit breaker mounts via snap-in into a panel cutout.
The mechanical lifetime is 50,000 switching cycles.
Front side protection is IP40; with factory-mounted cover it is IP54.