BC112H-M/Z3 REX 112KVA 480-120/208V 3PH ISO TRANSFORMER
The BC112H-M/Z3 REX 112KVA 480-120/208V 3PH ISO Transformer is a high-performance transformer designed for industrial applications. It provides reliable voltage transformation while ensuring optimal efficiency. With a robust construction, this transformer ensures durability and longevity, making it an excellent choice for your electrical systems. Perfectly suited for various installations.
At 112 KVA and 208V 3-phase, the full-load secondary current is approximately 311 A (calculated as 112,000 ÷ (208 × 1.732)). This determines the minimum rating required for your secondary overcurrent protection and downstream panelboard or switchboard.
The primary full-load current of the BC112H-M/Z3 at 480V 3-phase is approximately 135 A (112,000 ÷ (480 × 1.732)). Per CEC Section 26, primary overcurrent protection is typically sized at 125% of the primary FLA for supervised industrial installations — approximately 175 A — but always confirm with your engineer and local AHJ, as transformer protection rules can vary.
Rex transformers, including the BC112H-M/Z3 frame, can be difficult to source through standard channels. Northern Breaker Group specializes in obsolete and hard-to-find electrical equipment. Contact our Calgary, Edmonton, or Vancouver counters with your full unit nameplate details and we'll locate new, surplus, or equivalent replacement stock for you.
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