NC1 series AC contactor is mainly used in a circuit of AC 50Hz or 60Hz,
rated working voltage up to 660V and rated working current up to 95A.
It is used to remotely close or/and to switch off the circuit. Connected
with a thermal relay, it can form an electromagnet starter to protect a
circuit in which overload running may occur.

If assembled with building block type auxiliary contact set, air time-delay
element or mechanic interlock, it can form time delay contact, reversible
contactor and star-delta (Y-) starter.