Eaton / Cutler-Hammer FAZ-D20/3-NA Miniature Circuit Breaker

The D-curve magnetic trip point activates at 10 to 20 times the rated current. This prevents nuisance tripping in highly inductive applications, making it ideal for motors, transformers, and power supplies with high startup inrush currents.

Yes, this breaker is UL 489 listed, which qualifies it for feeder and branch circuit protection in North America. This distinguishes it from UL 1077 devices, which are only rated as supplementary protectors.

Yes, the trip-free design ensures the breaker will open the circuit during an overcurrent or short-circuit event, even if the toggle handle is physically held in the ON position.

The breaker features a color-coded indicator on the front face that provides immediate visual confirmation of the contact position. It displays red when the contacts are closed (ON) and green when they are open (OFF or tripped).

Yes, power can be supplied to either the line or load side terminals. This reverse-feed capability allows for flexible wiring configurations inside control panels.

The FAZ-NA line supports various field-installable accessories, including auxiliary contacts, bell alarms, shunt trips, padlock hasps, and bus bar combs for multi-breaker configurations.

The current-limiting architecture interrupts fault currents within one-half cycle. This rapid clearing time drastically reduces peak let-through current and energy, minimizing potential thermal and magnetic damage to the protected circuit.

This 3-pole breaker has a compact footprint, measuring 17.5 mm per pole, for a total width of 52.5 mm. This modular design saves valuable space inside high-density industrial control panels.