BA45B-Q/Z3 REX 45KVA 208-600/347V 3PH TRANSFORMER

In Canada, 347 V is the standard phase-to-neutral voltage of a 347/600 V wye distribution system. It is widely used for commercial and industrial lighting circuits (fluorescent, LED high-bay, and HID fixtures rated 347 V) as well as certain motor and HVAC loads. The Rex BA45B-Q/Z3's 347 V secondary is specifically designed for these Canadian distribution requirements.

Add up the full-load kVA (or convert kW using your power factor) of all equipment fed by the transformer. Per the Canadian Electrical Code, transformers on continuous loads should not be loaded beyond 80% of their rated capacity — so a 45 kVA unit is ideally suited for continuous loads up to approximately 36 kVA. If your calculated load is higher, you may need a larger unit. Contact our team and we can help you size correctly.

Rex transformers can be difficult to source as the brand has limited current distribution in Canada. Northern Breaker Group specializes in obsolete and hard-to-find electrical equipment — if the BA45B-Q/Z3 is no longer in active production, we can search our inventory and supplier network to locate new-old-stock or a compatible equivalent. Reach out to one of our Calgary, Edmonton, or Vancouver locations for availability and a quote.