Resideo dpl3040a5003 Contactor 40A 3 Pole 24V

Product Description

The RESIDEO dpl3040a5003 is a three-pole definite purpose contactor rated for 40 amps with a 24-volt coil, designed for electromagnetically operated switching in HVAC and refrigeration systems. It handles the starting of induction motors in equipment such as condensing units, compressors, and commercial refrigeration loads. The contactor is compliant with A2L refrigerants, making it a current-generation-compatible component as the industry transitions to lower-GWP refrigerant blends. Licensed HVAC technicians and refrigeration mechanics are the primary installers. Its compact footprint fits standard equipment enclosures and panel mounting configurations.

This contactor is suited for residential and light commercial HVAC applications where a three-pole switching device is required for motor starting duty. It operates across a wide temperature range of -25 degrees F to 158 degrees F, allowing deployment in both indoor and outdoor equipment cabinets. Definite purpose contactors in this class are commonly found in split-system condensing units, heat pumps, and packaged rooftop units where multi-pole contactor switching is specified by the equipment manufacturer.

Key Features

• Three-pole configuration for motor starting duty in HVAC and refrigeration systems
• 40-amp load rating supports compressor and condenser fan motor applications
• 24-volt coil integrates directly with standard low-voltage thermostat control circuits
• A2L refrigerant compliant for compatibility with current and transitional refrigerant systems
• Wide operating temperature range of -25 degrees F to 158 degrees F
• Compact body dimensions suit standard electrical enclosures and OEM panel layouts

Compatibility

Designed as an OEM-style replacement definite purpose contactor for three-pole, 40-amp, 24-volt coil applications in residential and light commercial HVAC and refrigeration equipment.

Installation Notes

Installation should be performed by a licensed HVAC technician or electrician. Disconnect and lock out all power to the unit before removing or installing the contactor. Verify that line voltage, load amperage, pole count, and coil voltage match the equipment nameplate requirements before wiring. Follow applicable NEC guidelines for load wiring termination and enclosure requirements.