Technical Parameters Parameter Category Specification / Value Brand Eaton Product Model C445BD-SDNM Product Type Electromechanical Contactor Number of Main Poles 4 Rated Operational Current (Iₑ) at AC-3 55 A (at 690V AC) Rated Thermal Current (Ith) 80 A Rated Operational Voltage (Uₑ) Up to 690 V AC, 50/60 Hz Control Coil Voltage DC (Specific voltage is denoted by the suffix, e.g., C445BD-S24 for 24V DC. "SDNM" often indicates a standard version, and the exact voltage must be specified when ordering). Motor Rating (AC-3) at 400V ~ 55 kW Motor Rating (AC-3) at 690V ~ 75 kW Electrical Life > 1 Million operations (under specific load conditions) Mechanical Life > 10 Million operations Auxiliary Contacts Not included as standard; add-on blocks available (e.g., CA4... series) Mounting Snap-on mounting to standard DIN Rail (35mm) or screw mounting Approvals / Certifications CE, cULus, CCC, IEC/EN 60947-4-1