ACV Door switch compact 54428070

This is a compact door switch for ACV boilers. It is installed on the boiler housing panel or door as a safety interlock. It cuts power to prevent access while the unit is in operation. This switch fits ACV Delta Pro S, ACV Smart Line, and ACV Prestige Solo models.

When replacing a door switch of this type, the key parameters are the electrical rating (voltage and current for the control circuit) and the physical mounting and actuator travel. The switch must match the original in actuation force and position so that it closes correctly when the door is shut and opens positively when opened. Compact variants are often used where space around the door hinge is limited. During replacement, verify wiring is correct, avoid overtightening, and test the switching function with a multimeter before closing the boiler.