
HVAC Transformers
Single-phase control transformers for HVAC equipment control circuits. VA ratings run 40, 48, 50, 75 and 100, with primaries covering 120 V, 208/240 V, 240/480 V, 277 V, and multi-tap 120-208-240 V and 120-208-240-480 V. Several list a 24 V secondary.
Size the transformer to the total VA draw of everything on the secondary — contactor coil, gas valve, thermostat, damper motor, condensate pump — not to the one component that failed. 40 VA is the most stocked size here, but adding a zone panel or a powered humidifier can push a control circuit past it. Multi-tap primaries let a single part cover 120, 208 and 240 V equipment, and in the 75 VA multi-tap, 480 V as well. Brands include TRADEPRO, MARS, JARD, Beckett, Honeywell Home and AprilAire.


TRADEPRO® Transformer Single Phase 120-208-240/24V 50VA TP-50VA

TRADEPRO® Transformer Single Phase 120-208-240/24V 40VA Quick Connect TP-40VA-QC

TRADEPRO® Transformer Single Phase 120-208-240-480/24V 75VA TP-75VA-MULTI

TRADEPRO® Transformer Single Phase 120-208-240/24V 40VA TP-40VA

