The 42Y Nema frame is constructed from rolled steel with an Open Air Over (OAO) enclosure

The integrated interrogation delay prevents nuisance trips caused by thermostat bounce

Key Benefits Precise Voltage Conversion: Efficiently steps down 460V primary power to 24V AC

particularly those in the heavy-duty lineup

the B320 provides the durability required for closed-loop systems

Greenheck 304742 Motor 322838-752 The 42Y Nema frame isThe Greenheck 304742 Motor is a high performance 1 3 HP HVAC replacement motor engineered for demanding commercial and industrial ventilation. Operating at 115V with a standard 1725 RPM, this single phase 60Hz motor is a critical component for maintaining optimal airflow in Greenheck exhaust fans and centrifugal blowers. Built on a NEMA 48 frame with a 0. 5 inch shaft diameter, it features a resilient base (cradle mount) to significantly reduce