Differential block ABB DDA204 4P 40A 300mA type A 2 modules B427987

Differential locks are mechanically designed to prevent incorrect coupling between the lock and the switch: the power of the lock must always be equal to or greater than that of the circuit breaker. 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 230/400Vac Rated current In 40A Rated residual current 300mA Differential type A 2 modules 4 poles Height 93 mm Width 140 mm Depth 76 mm Net weight 311 gr