Eaton / Cutler-Hammer FAZ-B30/3-NA Miniature Circuit Breaker

The B-curve thermal-magnetic trip profile means the breaker is designed to trip instantaneously at 3 to 5 times its rated current. This makes it ideal for resistive loads or sensitive control circuitry where low levels of inrush current are expected.

Yes. The -NA suffix indicates that this breaker is UL 489 listed, meaning it is fully approved for branch circuit protection in North American applications, unlike UL 1077 supplementary protectors.

This breaker is designed to snap onto a standard 35mm DIN rail, which is commonly used in industrial control panels and automation enclosures.

The required fastening torque depends on the wire size used. For 18 to 12 AWG wire, torque to 21 lb-in. For 10 to 8 AWG, use 25 lb-in, and for 6 AWG wire, tighten to 36 lb-in.

Yes, it features a color-coded contact position indicator on the front. It displays red when the breaker is ON and green when it is OFF or tripped, allowing for quick visual diagnostics.

Yes, the FAZ-B30/3-NA features a current-limiting design. It interrupts fault currents within one-half cycle, which reduces the peak let-through energy and provides superior protection for downstream circuit components.

Yes, this breaker supports a feed-thru connection and can be reverse fed, allowing power to be supplied to either the top or bottom terminals depending on your panel layout.