440V to 400V Buck-Boost Transformer — Step-down, 3-Phase Delta
See how a 440V to 400V 3-phase delta buck-boost transformer corrects voltage and how to select the proper model.
Choosing a 440V to 400V transformer
Choose an available phase and load current to see a buyable exact-match unit for 440V to 400V correction. Current stock or lead time is shown with the result.
This voltage pair is used when the measured supply is near 440V and the connected equipment requires 400V. Confirm both values at the installation before choosing a transformer.
Find the right 440V to 400V transformer
Checking buyable configurations... If no online match is available, send the voltage pair, phase, and equipment nameplate amps for an application review.
✔ Recommended for your application
Sizing uses the correction winding only. Verify load current against the equipment nameplate and install per the included wiring diagram and applicable NEC requirements.