This Harmony RXZ varistor has a rated voltage of 110V to 230V AC/DC.It has a light weight and it is compatible with socket RSZ with 1 and 2 changeover contacts.This protection module enables safety to your relay which helps to protect both people and system from electrical shock.Simple modular design facilitates post installation servicing, modification and adaption of machines by non-specialists.It can be matched with any relay socket from RSZ range.