NZM6B-63/ZM6-3.7-20-OBI-CNA Eaton Molded Case Circuit Breaker

The NZM6B-63/ZM6-3.7-20-OBI-CNA is a molded case circuit breaker with a continuous current rating of 3.7A and a magnetic instantaneous trip range of 10–20A. It belongs to the NZM6B-63 series and is designed for use in compact industrial motor protection applications. The device complies with applicable standards for molded case circuit breakers and incorporates the OBI-CNA configuration. Its trip characteristics are fixed and non-adjustable, with the instantaneous function activated within the specified 10–20A band. The model number identifies the specific variant including frame size, current rating, trip curve, and terminal configuration.