Surge Protector for a pair of floating circuit conductors (0-20mA or 0-10V), separate connection PE, color: black, degree of protection: IP20 Operating Temperature: -40 ... 85 ° C, rated voltage : 24 Vdc, rated current: 300mA, type TT-2-PE-24DC. Phoenix Contact._x000D_ _x000D_ _x000D_ _x000D_