Load Shedding and Reconnection

Load Shedding and Reconnection Depending on Current

The pickup curve for load shedding and reconnection depending on current is parallel to the I²t and Idmtl long-time curves. If a rating plug without long-time protection is installed, the load shedding and reconnection function based on current cannot be activated.

• I²t long-time protection: the neutral is taken into account.

• Idmtl long-time protection: the neutral is not taken into account.

The function does not trip the circuit breaker. It can be used to disconnect and reconnect non-priority loads by triggering an alarm linked to:

• Outputs of the IO module

• The communication option

The load-shedding and reconnection function is determined by thresholds and time delays.

pickup threshold pickup time delay dropout threshold dropout time delay long-time protection curve

The pickup threshold is always greater than or equal to the dropout threshold.

Load Shedding and Reconnection Depending on Power

Load shedding and reconnection depending on power calculates the total active power on the three phases. The function does not trip the circuit breaker. It can be used to disconnect and reconnect non-priority loads by triggering an alarm linked to:

• Outputs of the IO module

• The communication option

The load-shedding and reconnection function is determined by thresholds and time delays.

pickup threshold pickup time delay dropout threshold dropout time delay

The pickup threshold is always greater than or equal to the dropout threshold.