C25DNL340 is an Eaton / Cutler-Hammer C25 Series definite purpose contactor designed primarily for HVAC and light industrial motor switching applications. It is a 3-pole, 40A non-reversing contactor with a 24VAC coil (50/60 Hz), commonly used for controlling compressors, fans, pumps, and other three-phase or single-phase loads in HVACR systems and OEM equipment.