Detailed Product Description S9 Shunt Release (for NB1, NBH8, NBH8LE, NB1L, NB1LE)Product Features: 1.1 General: Remote opening of the device when a voltage is applied.1.2 Manufactured according to IEC/EN 60947-5-11.3 Rated voltage: DC 24V, 48VAC 24V, 230V, 400V1.4 Mounted on the left of the MCBs/RCBOs.