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The Schurter Inc. 4411.0052 is a thermal circuit breaker with a threaded neck type and push-to-reset actuation. It is designed for panel mounting and offers a compact design with positively trip-free release.
This circuit breaker operates at AC voltages up to 277V and DC voltages up to 28V, with a rated current range of 0.05A to 30A. It has a high breaking capacity and features quick connect terminals (6.3 x 0.8 mm), with screw clamp terminals provided for rated currents above 20A.
Key electrical specifications include a conditional short circuit capacity of 1 kA at 240V AC and a short circuit capacity (Icn) of 8 x In for currents below 7A and 400A for currents 7A and above. It offers dielectric strength of 1.5 kV (50 Hz) and impulse dielectric strength greater than 2.5 kV (1.2/50 μs). Insulation resistance is rated above 100 MΩ at 500 VDC.
Environmental and mechanical specifications include an operating temperature range of -5°C to 60°C, IP40 degree of protection on the front side, and resistance to vibration and shock. Endurance is rated for a typical 3000 switching cycles at 2 x Ir. Applications include power supplies, uninterruptible power supplies, power tools, and household appliances.
The device operates at 240/277 VAC and 28 VDC.
The unit functions reliably between -5 °C and 60 °C.
The breaker sustains 3000 switching cycles at twice the rated current.
The unit withstands up to 400 A under DC conditions at 28 V.
Yes, the breaker utilizes a push-to-reset actuator for power restoration.