P17 Tempra combined units to be composed - IK 08 according to IEC 62262 - Self - extinguishing : 650 °C - Max. IP 66Combined units height 220 mm to 441 mm Base for 220 x 125 mm faceplates - max. IP 66 - Base up to 2 sockets 16 A - Rail 5 modules 17.5 mm - External dimensions (Height x Width) : 371 x 125 mm