Minimum (Under) and Maximum (Over) Demand Current and Voltage Protection

Maximum Protection

Minimum Protection

Provides pickup and dropout values for alarm, contacts or tripping for current and voltage values. (There is no minimum for current.)

Pickup value (A) is set to activate an alarm or trip.
Pickup time delay (B) is set to start timing once the pickup value has been passed.
Dropout value (C) is set to deactivate the alarm and/or contact.
Dropout time delay (D) is set to start timing once the dropout value has been passed.
Minimum (under) voltage protection (V_min) is activated when any line-line voltage is below the minimum voltage setting.
Maximum (over) voltage protection (V_max) is activated when any line-line voltage is above the maximum voltage setting.
V_min has a dropout value ≥ pickup value.
V_max has a dropout value ≤ pickup value.
If current or voltage protection trips the circuit breaker, the circuit breaker cannot be reset until the current or voltage problem which caused the trip is corrected.
Ground-fault alarm on the 5.0P and 6.0P trip unit is based on true rms value of the ground current.
Do not set undervoltage protection below 80%.*