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The Schurter Inc. 4430.1089 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 has a mechanical lifetime of 50,000 switching cycles and an overload capability of a minimum of 40 trips at 6 times the rated current for AC.
This circuit breaker operates within a temperature range of -10 °C to 55 °C and has a tripping type of thermal actuation via a rocker switch. It meets IEC 60934 standards for short circuit capacity, providing 1 kA conditional short circuit capacity at AC 240V and up to 300A short circuit capacity at In ≥ 3 A/ 240 VAC. The device offers a degree of protection of IP40 on the front side, which can be increased to IP54 with a factory-mounted protection cover.
Key electrical specifications include a dielectric strength of 4 kVAC and an insulation resistance greater than 100 MΩ at 500 VDC. The Schurter 4430.1089 is suitable for applications requiring reliable thermal overload protection in industrial appliances, power supplies, and equipment for construction. It is approved by CSA, EN, GB, IEC, and UL standards.
Rated voltage AC is 240 VAC and rated voltage DC is 60 VDC.
The allowable operation temperature range is -10°C to 55°C.
Conditional short circuit capacity is 1 kA at 240 VAC. Short circuit capacity Icn is 300A at 240 VAC for currents ≥ 3A.
Degree of protection is IP40, and IP54 with the factory-mounted protection cover.
The mechanical lifetime is 50,000 switching cycles.
It is approved by CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, and UL1077.
The tripping type is thermal.
