ZoneFirst PIRR Relay Complete Internals: Includes the bonnet

Complete Internals: Includes the bonnet O-ring

making it the standard choice for controlling different speed taps on a blower motor based on the heating or cooling demand

ensuring correct mechanical linkage for modulating control

designed to be integrated into existing wiring harnesses with ease

ZoneFirst PIRR Relay Complete Internals: Includes the bonnetThe ZoneFirst PIRR is a 24Vac 4PDT Plug In Relay engineered as a direct high performance replacement for RR and RMABS relays. Designed for immediate integration into the 4PDR relay socket, this "ice cube" style component is a fundamental requirement for maintaining legacy electromechanical zone control panels, including older TAT Mark IV, V, VII, VIII, XXXI II, and MM 2 3 systems. This relay features gold flashed silver alloy contacts rated for 3A at