|Non-delayed disconnection of NZM circuit-breaker or N switch-disconnector when the control voltage sinks below 35 – 70% US.|
For use with emergency switching off devices in conjunction with Emergency switching off button.
When the undervoltage release is de-energized, accidental contact with the main contacts of the switch during attempts to switch on is safely prevented.
Undervoltage releases cannot be installed simultaneously with NZM...-XHIV... early-make auxiliary contact or NZM...-XA... shunt release.
|with terminal block on the left-hand switch side|
|without auxiliary contact|
Rated control voltage
|Us||V||48 V 50/60 Hz|
For use with