Shunt release MN + undervoltage release 230V AC SE SPA-MNR2A Systeme Electric

The minimum voltage release MN causes the immediate tripping of the SystemePact ACB circuit breaker when its supply voltage drops to a value between 35% and 70% of the rated voltage. If the release is not energized, manual or electrical closing of the circuit breaker is impossible. Reclosing the circuit breaker is possible when the release supply voltage reaches 85% of the rated value.