ZoneFirst PIRR Relay Its rectangular form factor allows

Its rectangular form factor allows for secure fitment in tight control boxes often found in ductless mini-split and furnace applications

The bimetal sensing element is tuned to open the electrical circuit at 150°F to prevent heat exchanger damage and close at 110°F once temperatures return to a safe operational threshold

Professionals typically find this limit control in Rheem and Ruud condensing units

As a veteran-grade general purpose limit switch

Does this unit require a neutral wire for installation

ZoneFirst PIRR Relay Its rectangular form factor allowsThe 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