The 48 x 48 selector switches are designed for flush-mounted installation on doors, wicket doors and front plates of enclosures and cubicles. The ammeter selector switch uses a single ammeter (by means of current transformers) for successive measurement of the currents of a three-phase circuit. Electrical durability of 100,000 operations, and mechanical durability of 2,000,000 operations. This product is calibrated for 20A circuit rating. 4 silver-nicket contacts for phase 1, 2, 3 or none. Complient to standards IEC/EN 60947-3. Ingress Protection IP65 on front, and IP20 on the back at terminal level. Product dimensions are 48mm in height, 48mm in width and 93mm in depth. Embedded depth behind a door, 66mm.
