ABB S751/3-E63 Selective main circuit breaker, 63A, 3-pole

The S751/3-E63 Selective Main Line Circuit Breaker is certified according to DIN VDE 0641-21 and is designed for the highest overvoltage category. It has a rated operating voltage of 230 / 400 V AC and can be fed directly into a 4 or 5-pole busbar system of 40mm with up to 50mm² and max 100A. Distinctive characteristics are the high selectivity properties to ensure high system availability, and the integrated lockout feature that allows simultaneous blocking of the 3 poles of a three-phase supply. The integrated sliding lock can also be secured with a padlock, wire seal or cable tie.

Technical specifications include a rated impulse withstand voltage of 6 kV to 9.8 kV, a rated frequency of 50 / 60 Hz and a mechanical durability of 20,000 cycles. The mounting position is arbitrary and the device is equipped with a position indicator (Red ON / Green OFF). The connection option accepts spring-loaded terminals for conductors from 2.5...16 mm² and 2.5...50 mm².

The product has a width of 81 mm, height of 151.3 mm, and depth of 116 mm with a net weight of 1.17 kg. It complies with the EU directive 2015/863 of July 22, 2019 (RoHS 3) and falls into the WEEE category 5 (small devices). Accessories can be attached.