OEM Replacement for Ruud Single Pole / 1 Pole 40 Amp Heavy Duty Condenser Contactor 42-42478-02 by Ruud This is a Brand New Upgraded 1 Pole 40 Amp Condenser Contactor This is a "Heavy Duty" contactor rated at 40 Amps! The coil is rated for 24 volts- It also has a sealed contact! This contactor will work with 99% of residential units!