Undervoltage release MN Multi 9 OEM. Operating voltage (Ue) 220-224V AC. Causes the device with which it is combined to trip when the input voltage drops (between 70% and 35% of Un). Prevents the device from closing until the input voltage is restored. With mechanical status indicator light (red) on the front. Emergency stop via opening button. The undervoltage release MN complies with the following standards - IEC/EN 60947-1, EN 60947-2.