Square D 8910DPA43V09

Square D by Schneider Electric 8910DPA43V09 is a three‑pole definite‑purpose contactor rated for 40 A, designed to switch 208–240 V control circuits with a 60 Hz coil (50 Hz/220 V variants exist for other regions). It can switch loads up to 600 VAC and carries a 25 HP rating at 575 VAC, making it suitable for HVAC, refrigeration, data processing equipment, and food service applications. The device features quick‑connect terminals and binder‑head screws for easy wiring, and there is an exclusive DIN rail mounting option to simplify panel installations; auxiliary contact modules snap onto either side of the DPA contactor to extend signaling and interlock capabilities. The 8910 family covers a current range from 20 A to 90 A, enabling selection across a broad set of load requirements while maintaining compact dimensions and robust reliability in industrial environments.