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Residual current circuit breaker (RCCB) Switch the power supply whenever dangerously high fault currents. You protect people, animals and plants. DFS 2 are two-pole residual current protective switch for single-phase networks. In the standard version, the compact devices two division units narrow. They are equipped with many different fault current types and versions with rated currents up to 125 A available. The large Double level terminals can also be large conductor cross-section. The triggered position of the multi-function knob simplifies troubleshooting. The free label software helps with the label. Switch of the type A are pulse and alternating current and sensitive. This function is independent of mains voltage. Devices are in the standard version for the monitoring of circuits with a rated voltage of 230V/400V and a rated frequency of 50 Hz. Features: Power and auxiliary voltage-independent activation;-sensitive for change - and immediately pour pulsating errors (type A) - small size for all rated currents; - high short-circuit strength; - double-sided double terminals for large conductor cross-section and busbar connection; - switching position display; - a viewing window for labels; multi-function knob with three positions: "on", "off", "tripped"; - even in the design of "HD" available-neutral position as installation type: quick mounting on rail fixing - any installation position feed-in direction applications: power supplies from living and purpose buildings as well as industrial systems with TN-S, TT and TN-C-S-networks. In IT networks can residual current protective switch of this series to the cut-out in the case of a second error.; - excluded is the use in TN-C networks and for the protection of plants in which electronic equipment smooth DC residual currents or currents with frequencies is not equal to 50 Hz can cause. Here is a comprehensive protection. For such applications, we recommend our Allstrom-sensitiven residual current circuit breakers (Type B or B+). This text is machine translated.