Trane RLY3715 Start Relay

The Trane RLY3715 Start Relay is a specialized single pole single throw (SPST) electrical component engineered to handle high-torque motor starting requirements in residential and commercial HVAC systems. Rated for 35 Amp applications, this relay provides the necessary amperage to energize compressor motors and high-voltage circuits accurately. Functioning with a 239V pick-up and 135V drop-out configuration, the RLY3715 is the direct RLY1097 replacement, ensuring seamless integration into legacy Trane and American Standard equipment without the need for field modifications or retrofitting.

For technicians servicing air conditioners and heat pumps, this HVAC start relay provides precise control over the starting mechanism, reducing electrical stress on the compressor during high-load cycles. The unit features standard 1/4 inch quick-connect terminals for efficient wiring. Whether you are addressing a failed start-up sequence or performing preventative maintenance, this OEM replacement relay ensures the system meets factory electrical specifications for timing and current handling.

Key Benefits

• High-Capacity 35 Amp Rating: Built to manage the significant inrush current required by larger HVAC compressor motors.
• Direct OEM Compatibility: Serves as the official replacement for RLY1097, RLY0896, and RLY1570, maintaining system integrity.
• SPST Configuration: Simplifies the electrical path for straightforward motor start control and troubleshooting.
• Industrial-Grade Contacts: Designed for reliability in demanding thermal environments to prevent contact pitting and premature failure.

Common Questions

Can the RLY3715 replace the RLY1097 directly?
Yes, the RLY3715 is the direct replacement for the discontinued RLY1097. The terminal locations and electrical ratings are designed for a drop-in installation in compatible Trane units.

What is the coil voltage for this relay?
The Trane RLY3715 features a 239V pick-up rating, making it suitable for 208/230V single-phase HVAC equipment common in North American markets.

Is this relay suitable for 35 amp motors?
This relay is rated for 35 Amps, which provides sufficient overhead for most residential split-system compressors and light commercial motor applications.

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.