It operates by using a spring-loaded lever to open up and close a list of inner contacts In the unit. It has a simulated plunger lever actuator. It requires a 7.2N running force to energize the spring. The operating recent rating is 15A. Farrell Heyworth outsource this Test to the https://kingswoodhomes.uk.com/developments/properties/4-bedroom-detached-houses-darwen/