Bulldog 067211 67211 Molded Case Circuit Breaker

As a feed-thru molded case circuit breaker, it does not connect directly to a panelboard busbar. It requires wire connections at both the line and load side lugs. It is typically surface-mounted or installed in a dedicated enclosure rather than a standard load center.

No. Although manufactured by Bulldog, the 067211 is a feed-thru molded case circuit breaker, not a Pushmatic breaker. It lacks the bolt-on mounting mechanism required for Pushmatic busbars and is designed for independent or inline mounting.

The LI designation indicates long-time and instantaneous protection. The thermal (long-time) element responds to sustained overloads by heating a bimetallic strip to trip the breaker, while the magnetic (instantaneous) element reacts immediately to short-circuit faults.

Under standard electrical codes, continuous loads operating for three hours or more should not exceed 80 percent of the breaker rating. For this 15-amp breaker, the continuous load must be kept at or below 12 amps to ensure safe operation and prevent overheating.

The 10 kiloampere (10kA) interrupting rating indicates the maximum fault current the breaker can safely clear at 240V without failing or causing a safety hazard. It is suitable for applications where available fault currents do not exceed 10,000 amps.