Transcription of Transformers
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Transformers
5 TransformersContact Technical Services at (800) 377-4384 with any questions. Visit our website at 197 Overcurrent ProtectionFusing and circuit breaker protection. How to overcurrent protect 600 Volt class Transformers and associated wiring per NEC (B), NEC and NEC (A).1. Primary protection only is required if the transformer is single-phase and the secondary has only two wires. Overcurrent protection rating and location are shown in Diagram A2. If the branch circuit feeding the transformer has overcurrent protection to meet the individual protection requirements in Example 1, then individual transformer protection is not B3.
5 Transformers Contact Technical Services at (800) 377-4384 with any uestions. Visit our website at www.solahd.com. 198 Fuse = I times 125% next size higher if primary current is 9 amp. or higher. No secondary fusing required.
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