Struthers-Dunn W235ACX-3 Current Sensor Relay

Struthers-Dunn W235ACX-3 is a 235 Series adjustable current-sensing relay that combines a solid-state current sensor with a SPDT (Form C) contact rated at 10 A for switching AC loads. Designed for 120 VAC nominal operation, it allows a knob-adjustable sensing threshold from 1.5 to 15 A, enabling precise triggering when the detected current crosses the set point. Wiring is streamlined with quick-connect terminals, and the 235 Series supports socket or side mounting to fit diverse panel layouts. Typical uses include current-based control and monitoring in electrical panels, where a relay can be actuated or an alarm triggered as line current rises above the preset level. Applications span HVAC, pumps, and other automation circuits that require a compact, single-package current sensor and relay solution for reliable interlock and control signaling. The W235ACX-3 designation identifies this model as a 120 VAC current-sensing variant within the 235 family, delivering a Form C output suitable for energizing auxiliary devices or interlocks in control cabinets while maintaining a straightforward, installation-friendly footprint.