The ASI P0120019R is a rear panel mounted 3 phase ammeter selector switch with 1 pole for use with 3 current transformers. The ASI P0120019R 3 phase ammeter selector switch is used to simplify the current measurement with three CT (current transformers) with the use of one ammeter and switching the measurement from one CT to the ammeter one at a time thereby eliminating the need for 2 additional ammeters. The ASI P0120019R 3 phase ammeter selector switch features self cleaning contacts, silver alloy plating and a UL94V0 thermoplastic housing. With a UL508 general use rating of 12A at 600Vac, the P0120019R rotary cam ammeter selector switch is a compact design to save space, the wire connections are shock hazard proof and information on wiring and identification are laser engraved into the housing. This robust rotary ammeter switch is ideal for control and load switching applications in all types of industrial applications. A NEMA 4X handle is available to ensure reliabile operation in any industrial environment. Custom configurations of rotary cam switches are available upon request.