Allen-Bradley X-257898 Voltage Transformer 1-Phase

Allen-Bradley X-257898 is a single-phase control-circuit transformer rated for 350 VA, designed to derive a stable 120 VAC control supply from higher-voltage mains in industrial equipment. It accepts dual primary inputs of 240 VAC or 480 VAC and provides a 120 VAC secondary output, a configuration commonly used to power relays, contactors, timers, and other control devices within machine controls and automation panels. With a 350 VA rating, this transformer can support multiple control loads while isolating the control circuitry from the mains to help protect sensitive electronics and reduce noise on the control supply. As part of Allen-Bradley’s family of 1-phase control transformers, it is a typical choice for panel builders and OEMs needing a compact, reliable source of 120 VAC derived from 240/480 VAC service in equipment such as presses, conveyors, and packaging lines. Variations exist within the series for mounting configurations and accessory options; check the specific X-257898 datasheet or a current Allen-Bradley catalog page to confirm terminal arrangement and any fuse-block accessories.