Three Phase Circuit Breakers for Distribution Transformers

ERMCO manufactures a complete product range of three phase circuit breakers for use in oil filled distribution transformers. These breakers come with the signal light and emergency overload features. Breakers may be ordered separately or as a breaker on a bracket.

The circuit breaker is typically mounted inside the transformer directly above the core/coil assembly. Operating linkage for the breaker is brought out through the tank above the oil level to an external operating handle.

The breaker on bracket is a completely factory assembled kit designed to provide the transformer manufacturer a simpler design for assembly and to eliminate linkage adjustments. The leading cause of inoperable circuit breakers – linkage problems – can be eliminated by specifying breaker on bracket.

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