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The Schurter 4430.3709 is a thermal circuit breaker designed for overcurrent protection in electrical circuits. It has a rated current of 15A and can handle voltages up to 240VAC and 60VDC. The breaker uses a thermal tripping mechanism and is available with a rocker actuator.
Key electrical specifications include a dielectric strength of 4 kVAC and insulation resistance greater than 100 MΩ at 500 VDC. The short-circuit capacity varies by condition: for AC at In<3A it is 10xIn, for In≥3A it is 300A; for DC at In<3A it is 10xIn, at In≥3A and 48VDC it is 120A. The conditional short-circuit capacity (Inc) is 1 kA at 240VAC. Mechanical life is 50,000 switching cycles, and electrical life is also 50,000 cycles at rated current.
The breaker is panel mounted and offers IP40 protection on the front side, upgradeable to IP54 with a factory-mounted protection cover. It operates in temperatures from -10°C to 55°C and can be stored in the same range. The unit weighs between 30g and 50g. It is designed to withstand vibration and shock per IEC 60068-2-6 and IEC 60068-2-27.
This circuit breaker is suitable for a variety of applications requiring reliable overcurrent protection in industrial, commercial, or residential equipment. The red illumination indicates the breaker's status. Note that compliance data (RoHS, REACH, MSL) is unverified.
240VAC and 60VDC.
Panel mount.
-10°C to 55°C.
15A.
2 poles.
Yes, red illumination at 220V nominal.
Rocker actuator.