151-1263, Siemens, Siemens SENTRON 5TT INSTA Contactor, 24 V ac/dc Coil, 4-Pole, 63 A, 4NO, 400 V ac, Brand Siemens, Coil Voltage 24 V ac/dc, Number of Poles 4, Contact Voltage Rating 400 V ac Siemens SENTRON 5TT INSTA Contactor, 24 V ac/dc Coil, 4-Pole, 63 A, 4NO, 400 V ac