Trane ctr03021 Contactor 2 Pole 40 Fla Box Lugs

Product Description

The TRANE ctr03021 is a 2-pole contactor rated at 40 full-load amps (FLA), designed to open and close the power circuit in HVAC equipment. When energized, it connects line voltage to the compressor or condenser fan motor; when de-energized, it breaks that connection cleanly. This OEM replacement part is built to Trane factory specifications, which reduces the risk of nuisance trips and mismatched contact ratings. Terminal connections include box lugs and quick connects, giving technicians flexible wiring options on the job. Licensed HVAC technicians are the primary installers of this component.

This contactor is suited for residential and light commercial HVAC applications where a 2-pole, 40 FLA contactor is required. It is a direct OEM replacement intended to restore factory-spec performance in systems that originally used this part. Typical install scenarios include compressor contactor replacement during a no-start diagnostic, a failed contactor identified by pitted or welded contacts, or a preventive swap during a system tune-up. Confirm coil voltage and FLA rating against the equipment nameplate before installation.

Key Features

• 2-pole configuration controls two lines simultaneously for standard single-phase compressor loads
• 40 FLA rating handles full compressor load current without derating
• Box lug terminals accept a range of wire gauges for solid or stranded conductors
• Quick connect terminals allow fast low-voltage coil wiring
• OEM replacement part built to Trane factory specifications

Compatibility

Designed as an OEM-style replacement contactor for Trane HVAC systems requiring a 2-pole, 40 FLA contactor with box lug and quick connect terminations.

Installation Notes

Installation of this contactor should be performed by a licensed HVAC technician. Disconnect and lock out all power to the unit at the disconnect box and verify zero voltage with a meter before handling any wiring. Ensure the replacement coil voltage matches the control circuit voltage shown on the equipment wiring diagram. Follow NEC guidelines for conductor sizing and terminal torque when landing wires on box lug terminals.