Undervoltage release MNx Multi 9 OEM. Operating voltage (Ue) 400V AC. The associated device is triggered by opening the control circuit. A drop in the supply voltage does not trigger the associated device. A locking push-button control allows the protected circuit to be put into a safety state. With mechanical status indicator light (red) on the front. Fail-safe emergency stop function. Insensitive to changes in the control circuit voltage for improved operational continuity. The undervoltage release MNx complies with the following standards - IEC/EN 60947-1.