Trane CTR2573 Contactor

The Trane CTR2573 Contactor is a mission-critical 2-pole HVAC contactor designed for reliable load switching in residential and light commercial condensing units. Engineered for 24V coil voltage systems, this component handles a 30 AMP inductive load, making it the standard replacement for worn silver-cadmium oxide contacts that have pitted or welded over time. This contactor features a compact frame with standard mounting holes, ensuring a seamless fit when replacing legacy Trane OEM parts. It serves as the verified direct replacement for CTR0844, CTR01038, and C147094P03. For technicians performing HVAC contactor replacement, the CTR2573 offers low-chatter operation and high dielectric strength, ensuring the compressor and condenser fan motor receive stable power during high-demand cycles. Utilizing an OEM contactor rather than a generic alternative maintains the physical footprint and terminal orientation required for fast, accurate wiring in cramped electrical cabinets.

• Precise OEM Compatibility: Direct drop-in replacement for CTR0844, CTR01038, and C147094P03, eliminating the need for mounting hole modification.
• Durable 30A Rating: Built to handle the heavy inrush current of AC compressors and fan motors without premature contact pitting.
• Standard 24V Logic: Compatible with all standard Trane and American Standard 24-volt control circuits and thermostats.
• Reduced Mechanical Noise: Precision-wound coil assembly prevents the 60Hz hum frequently associated with lower-grade aftermarket relays.

Is the CTR2573 compatible with 1.5 to 3-ton AC units?
Yes, provided the inductive full-load amperage (FLA) does not exceed 30 amps and the control system utilizes a 24V transformer.

Can I use this to replace a 1-pole contactor?
This is a 2-pole contactor which breaks both lines of power. While it can often replace a single-pole unit for added safety, ensure the wiring schematic allows for breaking both legs of the circuit.

What causes this contactor to hum or chatter?
Chattering is typically caused by low voltage at the 24V coil or debris within the magnetic yoke. Always verify 24V at the coil terminals before replacing the component.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.