86 x 146mm|Ambient operating temperature: -5 to 40C (24hour average not exceeding 25C)|Degree of protection: IP20|Face plate material: urea-formaldehyde|Minimum wall box depth: 16mm|Fixing screws: M3.5x25mm |Max Installation Altitude 2000 meters|Heavily embossed terminal marking for clear terminal identification|Only one size screwdriver required for installation|Contoured to blend into the wall