Ground fault circuit interrupter (RCCB) switch off the power supply in case of dangerously high fault currents. Thus, you protect persons, animals and plants. DFS 4 are two or four pole ground fault circuit breakers for single or three phase networks. In standard design, the compact devices are four division units narrow. They are available with many different fault current types and versions at rated currents up to 125 A. The large double level terminals can also accommodate large conductor cross-sections. The trip position of the multifunction toggle facilitates troubleshooting. The free label software helps with the labeling. Type A switches are pulse- and AC-sensitive. This function is independent of mains voltage. Buttons for switching off in emergency situations, for example, can be connected to a NA-type fault-current circuit-breaker. An integrated LED indicates the emergency triggering through buttons or broken wires. The ground fault circuit breaker can only be switched on again after correction. Several RCCCBs can be connected in parallel. Features: Tripping independent of mains and auxiliary voltage; sensitive for alternating and pulsating DC fault currents (type A) only 1/2 TE wider than the standard device; no additional power supply required for the EMERGENCY STOP circuit; full separator properties; small size for all rated currents; high short-circuit resistance; double-sided double-level terminals for large conductor cross-section and rail connection; switch position display; viewing window for labeling labels; Multifunction control toggle with three positions: "ON", "OFF", "triggered"; connection C1 Neutral position left; mounting type: rapid mounting on mounting rail; mounting position arbitrary; feeding from above; application areas: RCCB of the NA series are particularly suitable for plants in which an emergency-OFF circuit with separator properties is to be provided, e.g. in classrooms or at production plants; The use in TN-C networks and for protection of plants is excluded. In which electronic equipment can cause smooth DC fault currents or fault currents with frequencies not equal to 50 Hz. There is no comprehensive protection here. For such applications, we recommend our all-current sensitive residual current circuit breakers (type B or B+).
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