UL, CSA, GL. The figures quoted for rated operational power within the price table are with respect to a voltage of 230/240V, with figures within brackets ( ) being those with respect to a voltage of 690V. The higher current rating refers to use in free air, the lower current rating represents use in an enclosure.. Front/Door Mounting Switch Disconnectors. Adaptable with simple attachment of auxiliary contact, neutral pole, or up to 3 main poles to basic 3-pole switch Suitable for main/emergency switching 690V nominal voltage Ingress protection IP55 Full compliance with BS/EN 60947-3 Supplied as complete kit in one pack