173-6817, Siemens, Siemens SIRIUS ACT 3SU14 Series Contact Block, 500V ac/dc, 1CO, Brand Siemens, Block Type Contact Block, Voltage Rating 500V ac/dc, Series SIRIUS ACT 3SU14 Siemens SIRIUS ACT 3SU14 Series Contact Block, 500V ac/dc, 1CO