Trane RLY0872 Relay 321894-708 the S30 time delay module

the S30 time delay module initiates a countdown

in homes with high pet dander or construction dust

40" WC specification for your specific furnace model

Standard plumbing practice dictates that the thermal element must be immersed in the top 6 inches of the tank

Common Questions & Technical Support Which Modine models is this kit compatible with

Trane RLY0872 Relay 321894-708 the S30 time delay moduleThe Trane RLY0872 is a high performance 115V 10A 3PDT delay relay engineered for precise timing in commercial and industrial HVAC controls. This OEM Trane replacement relay features a fixed 0. 3 second delay, making it essential for managing inductive loads and preventing contactor chatter in complex sequencing circuits. With a 3PDT (Triple Pole Double Throw) contact configuration, it provides versatile switching capabilities for multiple logic paths