DEA71 and DEB71 are modular residual current relays which, in conjunction with the MCB and the toroidal leakage current sensor, provide protection against possible risks arising from insulation or grounding faults. The setpoints can be fixed (DEA71) or adjustable (DEB71). The device is equipped with two changeover relay outputs. One output triggers at 60% I∆n providing a warning signal status, the other output triggers at 80%I∆n shutting down the system.

Benefits:

• Coordination in a system.DEB71 provides local protection interrupting the power supply only at the point where the fault occurs, through specific settings (IΔn, Δt) for each level into which the system is divided.
• Anti tampering. Fixed trip levels (DEA71) and sealable front lid (DEB71) provide protection against tampering.
• Safety against nuisance tripping. EN 60947-2 Annex M conformity.
• Output and status LED indication.Showing at a glance the level of leakage current in real time.
• Input for remote R / T button. Input for remote periodical test and for reset of tripped relay after solved fault.

Applications:

DEA71 and DEB71 provide, on all type of residential, commercial and industrial installations, protection to people against the electric shock risk and buildings against the risk of fire.