Schneider Electric Merten surface-mounted housing MTN4024-6534 is in color anthracite with 2 gangs. As a green premium product, this device is environmentally friendly as well. And it is mercury free. And heavy metal free, which takes care of the environment and your health as always. Being made of ABS (acrylonitrile butadiene-styrene) material, this surface-mounted housing is quite reliable and resistant. This surface-mounted housing is SVHC (substances of very high concern) free too. Besides it is halogen free halogen free, which is good for your health. The varnished surface treatment helps deliver a clear transparent hard protection. In residential buildings, offices, schools or hotels, Merten System Design stands for inspiration, design and functionality in all living spaces. From controlling conventional installations to intuitive KNX technology, System Design offers all the functionality of a flexible modern switch range.