B1H1C7 – NOARK 1P 7A 277V (C-CURVE 5-10 IN) STANDARD

A C-curve (5–10 In) circuit breaker is designed to tolerate moderate inrush currents before tripping instantaneously. This makes the NORB1H1C7 a strong fit for lighting circuits, small transformers, and general-purpose control loads — applications that draw a brief surge on start-up but not the high inrush of large motors. If your load has very high inrush (e.g. heavy motors or transformers), a D-curve breaker may be more appropriate. Not sure which curve suits your application? Contact our team and we'll help you select the right trip characteristic.

NOARK NORB1H series breakers are stocked or sourced through our Calgary, Edmonton, and Vancouver counter locations. Availability can vary, so we recommend contacting your nearest branch or submitting a quote request before your visit to confirm stock on hand for the 7A rating.

Yes — a breaker rated at 277V AC is suitable for use on circuits with lower voltages such as 120V or 240V AC, as the voltage rating represents the maximum allowable operating voltage. The NORB1H1C7 is therefore compatible with standard North American single-phase and multi-wire branch circuits, provided the current does not exceed 7A. Always verify your system's requirements and applicable Canadian Electrical Code (CEC) rules before installation.