Weil McLain 510-312-167 Transformer Els PW 17895 Always check for a grounded

Always check for a grounded "C" wire

B) correspond directly to the lettered and numbered terminals on original RLY02807 and RLY02257 boards

providing a clear indication that the control relay is energized

including 3508731

This outdoor temperature sensor features 35-foot leads

Weil McLain 510-312-167 Transformer Els PW 17895 Always check for a groundedThe Weil McLain 510 312 167 is a mission critical combination transformer and DPST relay assembly designed for seamless integration into Weil McLain boiler control circuits. This factory spec component serves as a robust 120 24 volt step down transformer, providing a consistent 40 VA power rating to drive low voltage ignition systems, zone valves, and auxiliary controls. Engineered for high demand hydronic environments, the 510 312 167 relay assembly