Schneider Electric Merten inserts MTN3714-0000 is a 1 pole switch. The fixing mode of this device is by screws and claws. Its matching mounting box can be recessed into the surface of the wall with flush type. Besides, the IP rating of this device is IP20. Being made of metal, plastic material, this switch is quite reliable and resistant. What's more, this device is qualified as a green premium product, with minimal use of hazardous substances. And it is mercury free Merten inserts can be used in any kind of CEE60 installation, with help of surface boxes and IP 44 solutions all applications. Merten Inserts can be combined with all various centerplates and outerframes designs of Merten System M, Merten Artec, Merten Antique.