Abb differential lock (circuit breaker) DDA204 series with the following features:
Politiche per la sicurezza
(modificale nel modulo Rassicurazioni cliente)
Politiche per le spedizioni
(modificale nel modulo Rassicurazioni cliente)
Politiche per i resi
(modificale nel modulo Rassicurazioni cliente)
The differential blocks are mechanically designed to prevent a wrong coupling between the block and the circuit breaker: the power of the block must always be equal or greater than that of the circuit breaker. The lateral plastic clamp allows a quicker assembly of the block on the circuit breaker and a push button prevents possible interventions.
It is used to protect human health in case of earth fault (electrical leakage) or phase-to-earth electrocution, thus providing protection also against macro electrical shock, both direct and indirect, on exposed persons.
The differential block type A-S: selective or delayed residual current devices: they operate with intentional delay (like type A).
Features:
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