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The APPLETON E250 is a dry type control transformer rated at 0.25 KVA, designed to step down 240x480 volt primary input to a 120 volt secondary output. It features an electrostatic shield between the primary and secondary windings, which suppresses high-frequency electrical noise and reduces transient voltage spikes from reaching sensitive control circuits. This transformer is built for industrial and commercial control panel applications where reliable, clean power delivery to low-voltage control components is essential. Licensed electricians and panel builders typically install this unit in motor control centers, machine panels, and similar enclosures.
The E250 is suited for use in industrial facilities, commercial buildings, and manufacturing environments where dual-primary voltage configurations are required. The 240x480 volt dual-primary winding allows installation on either 240 volt or 480 volt single-phase circuits, making it adaptable to a range of facility power systems. It supplies 120 volt secondary power for control relays, pilot lights, solenoid valves, and similar control devices. Its compact form factor and shielded construction make it a practical choice for tight panel installations.
Designed as an OEM-style replacement or new-installation control transformer for industrial and commercial control panels requiring a 0.25 KVA, 240x480 to 120 volt dry type shielded unit.
Installation should be performed by a licensed electrician in accordance with NEC Article 450 governing transformer installations. De-energize and lock out the primary circuit before making any connections. Verify primary voltage selection matches the facility supply before energizing. Ensure the enclosure or panel provides adequate ventilation for the transformer's thermal rating.
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