Siemens Industrial Controls 3RA1954-2A Mechanical Interlock 319848-301 Built to handle the high

Built to handle the high rotational demands of HVAC blower motors and fan shafts

Thermal Safety: Built-in automatic overload protection prevents motor burnout during high-ambient temperature conditions

ensuring there are no alignment issues during field installation

the bulb should be mounted at the 10 or 2 o’clock position (never at the bottom) to avoid oil interference and ensure accurate refrigerant temperature readings

including 1HA0408 and 1FF0114 series

Siemens Industrial Controls 3RA1954-2A Mechanical Interlock 319848-301 Built to handle the highThe Siemens 3RA1954 2A Mechanical Interlock is a rugged, laterally mounted interlock specifically engineered for high capacity SIRIUS 3RT motor contactors within sizes S6, S10, and S12. Designed to ensure fail safe operation in reversing or changeover configurations, this contactor accessory prevents the simultaneous engagement of two power contactors, effectively protecting your motor winding and electrical distribution system from dead shorts. This