MARS 19010 Relay 319847-401 Contractors rely on this National

Contractors rely on this National Board certified safety valve for its reliable pop-and-reseat performance

this Secop 117U5023 provides the necessary phase shift to overcome high head pressures during startup

AEO Performance: Optimized for modern controls that require reliable HVAC zone temperature sensor data for demand-controlled ventilation

Serviceability: Standardized shaft dimensions allow for rapid condenser fan blade alignment and reduced onsite downtime

MARS 19010 Relay 319847-401 Contractors rely on this NationalThe MARS 19010 Relay, also known as the MARS 71 Relay, is a high performance universal potential relay engineered for heavy duty motor starting applications in HVACR systems. This component is identical to 3ARR3MARS71 and serves as a drop in replacement for thousands of OEM models, providing a reliable solution for single phase motors that require a start capacitor. Designed with a non positional mounting capability, the MARS 19010 simplifies field