Eaton / Cutler-Hammer FAZ-B20/2-NA Miniature Circuit Breaker

The B-curve designation means the breaker will trip magnetically at 3 to 5 times its 20A rated current. This is ideal for applications with low inrush currents, such as resistive loads, lighting, and basic control circuits.

Yes, the -NA suffix indicates this breaker is UL 489 listed for branch circuit protection in North America. It can be used for feeder and branch circuits, unlike UL 1077 supplementary protectors.

The box lug terminals require specific tightening torques based on wire gauge. Torque to 21 lb-in for 18-12 AWG, 25 lb-in for 10-8 AWG, and 36 lb-in for 6 AWG conductors.

Yes, this breaker is dual-rated for both AC and DC applications. It supports up to 96VDC with a 10kA interrupting capacity, making it suitable for DC control panels and power supplies.

Yes, Eaton FAZ-NA series miniature circuit breakers can be reverse fed. This allows flexibility when routing line and load wiring within an industrial control panel.

Yes, it includes a trip-free design. This safety feature ensures the breaker will still trip during an overload or short circuit even if the operating handle is physically held in the ON position.

Yes, the FAZ-NA series supports subsequent mounting of field-installable accessories. You can add auxiliary contacts or shunt trips to the side of the breaker for remote signaling and control.

Yes, the FAZ-B20/2-NA is a Class 3 current-limiting circuit breaker. It is designed to interrupt fault currents within one half-cycle, reducing the peak let-through energy that could otherwise damage downstream circuit components.