Trane CTR02577 Contactor

The Trane CTR02577 is a 3-pole, 40 A definite‑purpose HVAC contactor with a 24 VAC control coil, designed to switch power to compressors, condenser fan motors, blower motors, and other high‑current loads in Trane systems. It is rated up to 600 VAC and 50/60 Hz, uses box lug connections, and is intended for panel mounting as an OEM replacement in Trane air conditioners, heat pumps, rooftop units, and packaged equipment. The unit is discontinued and superseded by SFCTR3P40A24VL. In terms of applications, it supports commercial HVAC and residential HVAC installations, including air conditioning systems, refrigeration equipment, and industrial HVAC controls. Common replacements include Trane SFCTR3P40A24VL, HCCY3XQ04CJ318, and CTR01161.