This Square D APPLETON EDSF22Q EXPLOSION PROOF 1 POLE SWITCH 120-277 VAC LAB22 is a sensor/switch manufactured by Square D. It detects a change in state, position, or presence and relays that information to a controller or operator interface. Key specifications noted on this listing include 120-277 VAC, 277 VAC, 1 POLE. It is commonly in production lines requiring accurate detection or operator control.
