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Built to withstand the back-EMF often seen in induction motor circuits
System Protection: Acts as a primary furnace safety switch to prevent overheating and potential structural damage to the heat exchanger
and B2 furnace series
it will lockout
Trane RLY2138 Relay 322838-752 Built to withstand the back-EMFThe Trane RLY2138 Relay is an essential OEM industrial grade component for precise 24V HVAC control. This robust 1NO 1NC relay (normally open normally closed) is engineered for switching high current loads in Trane air handlers, furnaces, and light commercial packaged units. Featuring high conductivity silver cadmium oxide contacts, the RLY2138 is rated for up to 25A at 277 VAC, providing reliable SPST performance with a 7FLA 42LRA inductive rating.