1 Pole Contactor 40 Amp 24VAC Coil

1 Pole Contactor 40 Amp 24VAC Coil

Key Features

• Poles: 1
• Amperage Rating: 40 Amp (Full Load Amps)
• Coil Voltage: 24 VAC
• Frequency: 50/60 Hz
• Terminals: Box lugs and spade terminals
• Includes a protective cover to prevent contact with live parts
• Operating Temperature Range: -40°C to 65°C (-104°F to 150°F)

Replaces / Cross-Reference Part Numbers

• Packard C140A
• TCDP401B6
• Westinghouse DW401A-120
• Serves as a universal replacement for most residential single-pole definite purpose contactors with matching electrical specifications.

Compatibility & Fitment

• Designed for HVAC, air conditioning units, heat pumps, refrigeration systems, and other motor load applications.
• Direct replacement for any 1-pole contactor rated at 40 amps or less (e.g., 25A, 30A) with a 24 VAC coil.
• Ensure pole count, amperage, and coil voltage match the original unit for proper fitment.

When to Replace

• Outdoor AC unit or compressor fails to start.
• A continuous humming or buzzing sound comes from the outdoor unit without the fan or compressor engaging.
• Visible signs of damage, such as burnt contacts, pitting, or melted casing.
• The contactor makes chattering or rapid clicking noises when energized.

Installation Tips

• Safety Warning: Disconnect all electrical power to the unit at the main breaker panel before beginning installation.
• Verify the specifications of the new contactor match the old part.
• Photograph or label all wire connections before disconnecting the old contactor.
• Connect high-voltage wires to the corresponding line and load terminals.
• Connect the low-voltage control wires to the coil terminals.
• Ensure all electrical connections are tightened securely.