This Standard gives requirements for contactors household and similar purposes, including contactors for distribution control in buildings. Contactors for such purposes have particular requirements which include test sequences and sampling plans to facilitate testing.
Contactors according to this standard are limited in the range of operational currents and operational voltages to values appropriate to the applications. Such contactors are for use in circuits of limited prospective short-circuit fault current for which they need to be co-ordinated with an appropriate short-circuit protective device to provide suitable co-ordination.1