Trane RLY3372 Start Relay 320735-701 Durable construction prevents galvanic corrosion

Durable construction prevents galvanic corrosion in commercial HVAC systems

or inducer motor failure

typically several duct diameters downstream from the burner but before any major branch take-offs

Adjustable Trip Point: Multi-turn potentiometer allows fine-tuning for specific motor loads to ensure accurate status feedback

Trane RLY3372 Start Relay 320735-701 Durable construction prevents galvanic corrosionAs a field technician, you understand that a reliable Trane RLY3372 start relay is critical for managing the high amperage inrush current required to kick over compressors during the startup cycle. This OEM Trane replacement part features a single pole, single throw (SPST) contact configuration rated for up to 50A, providing the switching capacity necessary for heavy duty HVAC applications. It serves as the direct RLY2227 replacement, ensuring total