BC45H-M/E3R/Z3 REX 45KVA 480-120/208V 3PH ISO TRANSFORMER
The BC45H-M/E3R/Z3 REX 45KVA Transformer is designed for 480-120/208V 3-phase applications. This high-quality isolation transformer ensures optimal performance and reliability across various electric setups. Its robust construction makes it ideal for demanding environments, providing superior voltage regulation and shock protection. Perfect for both commercial and industrial use.
At 45 KVA and 120/208V 3-phase, this transformer can deliver approximately 125A per phase on the secondary side (45,000 VA ÷ (208V × √3) ≈ 124.9A). This is sufficient to feed a 100A or 125A 120/208V panelboard with appropriate derating for continuous loads. Contact us with your specific load schedule and we can help confirm the sizing.
Isolation transformers provide galvanic separation between the primary (480V) and secondary (120/208V) circuits, which suppresses electrical noise, transient surges, and ground faults from passing through to sensitive equipment. The REX BC45H-M/E3R/Z3 is particularly well-suited for hospital-grade circuits, CNC/machine tool applications, data centre infrastructure, and any environment where power quality and safety isolation are critical.
REX transformers can be difficult to source through standard supply channels, especially older or specialized configurations like the BC45H-M/E3R/Z3. Northern Breaker Group specializes in obsolete and hard-to-find electrical equipment across Canada. Whether you need an original unit or a compatible replacement, reach out to our Calgary, Edmonton, or Vancouver counters and we'll work to locate what you need.
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