Frequency 50/60 Hz Class 1 Built-in suitability up to IP 20 Screw terminals Tread fastening Power range 0,03-30 kVA Standing construction to bottom attachment Series DT/DTB Lying construction to wall fastening Series DTL/DTBL Built-in suitability up to IP23 (in steel panel case) Series DTA/DTBA Other voltage, power and construction on query