WNU SERIES (UL-RECOGNIZED CONTACTOR)

・UL-Recognized contactor, allowing for export and use in the North America.

・A power transfer switch contactor with a neutral (off) position that can turn off input power on both sides.

・If residual voltage is left on the load side at the time of transferring, overcurrent may occur due to the phase shift between the backup generator and the residual voltage on the load side.

WNU Series products can prevent such overcurrent by pausing the transfer at the neutral position momentarily and allowing the residual voltage to attenuate.

・The tripping mechanism and the neutral position of this switch offers special operational sequence such as:

I⇒OFF⇒II, I⇒OFF⇒I

・It is suitable for small industrial and commercial facilities.