Trane RLY3148 Start Relay ensuring proper fitment and terminal

ensuring proper fitment and terminal alignment for quick field replacement

High Pressure Rating: UL-approved for up to 667 psig

It replaces older part numbers like 626419 and cross-references with 36T01B3 and A1505

for securing panels and internal components

this copper-jacketed thermocouple ensures the gas valve remains open only when a consistent pilot flame is detected

Trane RLY3148 Start Relay ensuring proper fitment and terminalThe Trane RLY3148 Start Relay is a high capacity potential relay engineered for heavy duty HVAC applications. Rated for 383V and 50A, this single phase component is critical for managing the initial inrush current during compressor start up. By temporarily engaging the start winding and disengaging once the motor reaches sufficient back EMF, it protects the compressor from electrical stress and reduces the risk of locked rotor amps (LRA). This OEM