Hubbell Incorporated HBL400FW Circuit Breaker

The Hubbell HBL400FW is a 400A, 600V single-pole circuit breaker from Hubbell Incorporated. It is designed to interrupt current to protect a single electrical circuit from overloads and short circuits. The device carries a 400-ampere rating and a maximum operating voltage of 600 volts, making it suitable for medium- to large-size branch circuits in electrical distribution setups. As a single-pole breaker, it protects one conductor within a panel or equipment where a 400A rating is specified. This model is used in installations that require a robust overcurrent protection device for industrial or commercial electrical systems that operate at up to 600V. For proper installation, follow all applicable electrical codes and verify compatibility with the panel or enclosure that accepts this model, and consult the manufacturer’s instructions during mounting and connections.