Circuit Breaker A 4A 2-Pole C-Curve UL 489 277/480V DIN Rail A Eaton FAZ-C4/2-NA
4A 2-pole DIN rail miniature circuit breaker with C-curve tripping for medium inrush loads such as small transformers and pilot devices. Rated 277/480V AC with 10 kAIC interrupting capacity and screw terminals for commercial and industrial control panels.
What this product is for
This 4A 2-pole Eaton FAZ-NA miniature circuit breaker is used for branch circuit protection in commercial and industrial control panels, OEM equipment, and export-to-North-America machinery builds. It is designed for applications where a C-curve trip is preferred to handle typical medium inrush current.
Use for
- Protecting 277/480V AC branch circuits
- Control panels and industrial machinery
- Small transformers, pilot devices, and similar medium inrush loads
- DIN rail mounted assemblies requiring UL 489 protection
Avoid for
- Applications requiring a different trip curve for very low or very high inrush loads
- Circuits above 4A continuous load requirements
- Installations where voltage, interrupt rating, or certification requirements do not match the equipment design
Best for
Best for electricians, panel builders, and maintenance teams specifying a compact 2-pole breaker for low-amperage branch circuits in commercial and industrial equipment. The C-curve trip is commonly used where nuisance tripping from moderate startup current needs to be reduced.
Installed in
Typically installed on standard DIN rail inside electrical enclosures, industrial control panels, OEM assemblies, and machine panels. Product size is approximately 4.13 in H x 2.97 in W x 1.4 in D (105 x 75 x 36 mm).
Why this product exists
This breaker provides branch circuit protection for North American applications using a compact industrial miniature format. Eaton lists it for medium inrush current applications and identifies it as suitable for protecting small transformers and pilot devices.
Compared with similar products
Compared with supplementary protectors, this FAZ-NA model is UL 489 listed for branch circuit protection. Compared with B-curve breakers, the C-curve trip is typically better suited to loads with moderate startup current. Actual suitability depends on the connected load, available fault current, and local electrical code.
Specifications
- Brand: Eaton
- Manufacturer part number: FAZ-C4/2-NA
- Product family: FAZ-NA
- Product type: Industrial miniature circuit breaker
- Amperage: 4A
- Poles: 2-pole
- Trip curve: C-curve
- Trip characteristic: 5-10 x In
- Voltage rating: 277/480V AC
- Interrupt rating: 10 kAIC, 14 kAIC
- Frequency: 50-60 Hz
- Mounting: DIN rail
- Terminals: Screw terminals
- Certification: UL 489, CSA C22.2 No. 235
- Approximate dimensions: 1.4 in D x 2.97 in W x 4.13 in H (36 x 75 x 105 mm)
- Approximate weight: 1 lb (0.45 kg)
- Current Rating4A
- Voltage277/480V AC
- MountingDIN rail
- Poles2-pole
- Interrupt Rating10 kAIC, 14 kAIC
- Dimensions1.4 in D x 2.97 in W x 4.13 in H (36 x 75 x 105 mm)
- ApprovalsUL 489, CSA C22.2 No. 235
- Product FamilyFAZ-NA
- Approximate Weight1 lb (0.45 kg)
- Frequency50-60 Hz
- Trip CurveC-curve
- TerminalsScrew terminals
- Trip Characteristic5-10 x In
- BrandsEaton
- Stock in Elmira1
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