Barber-Colman Company EA57 Solenoid Actuator DC

The Barber-Colman EA57 valve actuator is a proportional electric actuator designed for burner and damper control, providing a 90-degree swing and about 200 in‑lb of torque in a non-spring-return package. It operates on 120 V AC at 60 Hz and is rated around 40 W, drawing roughly 0.65 A during normal operation, with a 1 inch NPT mounting connection. Marketed as a direct retrofit for Barber-Colman, Eurotherm, and Schneider Electric units, the EA57 is widely used to modulate fuel‑air systems, dampers, and valve assemblies in industrial burner control applications. Typical configurations include a built‑in SPDT switch for position feedback and proportional control, offering smooth, controlled motion without an integrated return spring, which requires external forces to reset the position if needed.