Differential block ABB DDA202 2P 25A 30mA type A 2 modules B427954

The differential blocks are mechanically designed to prevent incorrect coupling between the block and the switch: the power of the block must always be equal to or greater than that of the magneto-thermal switch. The lateral plastic clamp allows for faster assembly of the block on the circuit breaker and a button prevents possible interventions. It is used to protect human health in the event of an earth fault (electrical leakage) or phase-to-earth electrocution, thus also providing protection against macro electric shocks, both direct and indirect, on exposed persons. The type A differential block guarantees operation for AC type currents and unidirectional pulsating type currents. Characteristics: Series Abb Rated voltage 230/400 Vac Current In 25A Differential current Idn 30mA Type of residual current device A 2 modules 2 poles Height 93 mm Width 70 mm Depth 76 mm Net weight 210 gr