... Block TB4503TB series adopt plate-type,screw-clamping,low base, sealed and integral construction, rating voltage 600V, rating current ... .Adopt flaming- retarding VO- grade PC as plastic base. The screw increase the bearing force after heart treatment ... plastic, ensures heat-resistance, good toughness and no crackRated voltage: 600VMatched with OT, UT terminalsSpecifications:Drawings: TB type Terminal ...