... :M5 12poles TB Terminal Block TB4506TB series adopt plate-type,screw-clamping,low base, sealed and integral construction, rating ... rust away for long time after special anti-salt and fog treatment. Also , stainless steel screw are available ... resistance, good toughness and no crackRated voltage: 600VMatched with OT, UT terminalsSpecifications:Drawings: TB-4512 Terminal Block current 45A and 12poles