Is Compact NSXm suitable for isolation with positive contact indication.
All Compact NSXm devices are suitable for isolation as defined in IEC standard 60947-2:
-> The isolation position corresponds to the O (OFF) position.
-> The operating handle cannot indicate the OFF position unless the contacts are effectively open.
-> Padlocks may not be installed unless the contacts are open.
Installation of a rotary handle does not alter the reliability of the position-indication system.
The isolation function is certified by tests guaranteeing:
-> The mechanical reliability of the position-indication system
-> The absence of leakage currents
-> Overvoltage withstand capacity between upstream and downstream connections.
The tripped position does not insure isolation with positive contact indication. Only the OFF position guarantees isolation.