

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The GENERALAIRE 4305 is a multi-tap primary transformer rated at 50 VA, designed to power the MS24 air purifier control circuit. It accepts a 120, 208, or 240 volt primary input and steps down to a 24 volt secondary output, making it compatible with a range of residential and light-commercial electrical service configurations. The 4305 supports foot, plate, and spud mounting options, giving installers flexibility when positioning the transformer within an equipment cabinet or enclosure. Licensed HVAC technicians and electricians typically handle replacement of this component during air purifier service calls.
This transformer is used in GENERALAIRE MS24 air purifier installations. It provides the low-voltage secondary power required to drive the purifier control circuit. The multi-tap primary design allows the same transformer to serve installations wired at 120, 208, or 240 volts, which is practical in both residential and light-commercial settings where line voltage may vary by region or service panel configuration.
Designed for use with the GENERALAIRE MS24 air purifier.
Installation should be performed by a licensed HVAC technician or electrician. Disconnect and lock out all power to the air purifier and associated air handling equipment before removing the existing transformer. Verify that the primary tap selected matches the actual line voltage at the installation site before energizing. Follow all applicable NEC requirements for low-voltage wiring and transformer mounting.
Thanks for subscribing!
This email has been registered!