Transformer Sizing

Quick dry-type transformer sizing with primary/secondary currents and recommended OCPD per CEC 26-250. Adds 25% future growth to the load.

PhaseConnected load (kW)Power factor

Primary voltage (V)Secondary voltage (V)

Tip: enter your real connected kW. We convert to kVA using your PF and add a 25% growth allowance before selecting the next standard size.