ABB S751/3-E50 Selective main circuit breaker, 50A, 3-pole

The S751/3-E50 Selective Main Line Circuit Breaker is certified according to DIN VDE 0641-21 and designed for the highest overvoltage category. It serves as a disconnecting device at the meter location, for the protection of distribution circuits and as a switching device with disconnect function. The S751/3-E50 is designed for direct mounting on a 4- or 5-pole busbar system with a rated current strength of up to 50mm² and max. 100A. Particularly noteworthy are the special selectivity features to ensure a high availability of the plant.

Technical data: Trigger characteristic: E (selective), function: single-pole switching, rated operating voltage: 230 / 400 V AC, rated insulation voltage (U i ): 690 V, rated switching capacity (230 / 400 V AC): 25 kA, rated frequency (f): 50 / 60 Hz, tightening torque: 2.5 ... 3 N·m, installation type: busbar 40 mm.

Environmental information: operating temperature: -25 ... +55 °C, storage temperature: -40 ... +70 °C, degree of protection: IP20 built into the distributor with cover IP40.

Product dimensions: Width: 81 mm, Height: 151.3 mm, Depth: 116 mm, Net weight: 1.17 kg.