Schneider Electric Merten inserts MTN3755-0000 is a push button insert.Its matching mounting box can be recessed into the surface of the wall with flush type. The fixing mode of this device is by screws and claws.The push-button is made of metal, plastic, making it as resistant as possible.This push-button is SVHC (substances of very high concern) free too.Besides it is halogen free halogen free, which is good for your health.This is a 1-pole push-button and the control type of this push-button is rocker. And the switching current is no more than 10 A.250V is the rated operational voltage.Besides, the IP rating of this device is IP20.Being environmentally friendly, this push-button is a green premium product too.And it is mercury free.