Eaton / Cutler-HammerFAZ-D10/1-NA-SP
Eaton / Cutler-Hammer FAZ-C40/1-NA-SP Miniature Circuit Breaker
- 40A
- 1 Pole
- DIN Rail
Eaton / Cutler-Hammer
FAZ-C40/1-NA-SP
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FAZ-C40/1-NA-SP
Quantity
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Eaton / Cutler-Hammer FAZ-C40/1-NA-SP - 40A 1 Pole Miniature Circuit Breaker
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Description
Packaged individually for convenience, this Eaton 1-pole, 40-amp miniature circuit breaker offers dependable branch circuit protection. It handles medium inrush currents in commercial and industrial settings. This unit mounts onto standard 35mm DIN rail systems and serves as a drop-in substitute for the legacy WMZT1C40 breaker. It features a reverse feed capable design for control panels. Rated for 10kAIC at 240VAC, this UL 489 listed device employs a C-curve thermal-magnetic trip unit.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | FAZ-NA |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | DIN Rail |
| Voltage | 240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC, 10kA @ 48VDC |
| Frame Type | FAZ |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | DIN Rail Systems, Industrial Control Panels |
| Wire Gauge | 18-6 AWG |
| Max Wire | 6 AWG |
| Min Wire | 18 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Curve | C |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Lockout Attachment, Busbar System |
|---|---|
| Accessories | Single Packaging |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | ABS, CE, CSA, cULus, DNV, IEC, Lloyd's, UL, VDE |
| Temp Rating | -25C to 75C |
| Construction Features | Current Limiting, HACR Rated, Reverse Feed, Trip-Free Mechanism, Visual Trip Indicator |
Product FAQs
8 answersWhat does the C curve designation mean on the FAZ-C40/1-NA-SP?
The C curve indicates a magnetic trip point of 5 to 10 times the 40A rated current. This makes it suitable for applications with medium inrush currents, such as small transformers and pilot devices.
Is the Eaton FAZ-C40/1-NA-SP rated for branch circuit protection?
Yes, the FAZ-NA series is UL 489 listed for branch circuit protection. It is not just a supplementary protector, and it also meets CSA C22.2 No. 5 and IEC 60947-2 standards.
Can the FAZ-C40/1-NA-SP be reverse fed?
Yes, power to this circuit breaker can be fed from either the line or the load side, offering wiring flexibility inside industrial control panels.
Does this Eaton miniature circuit breaker feature a trip-free design?
Yes, it utilizes a trip-free mechanism. The breaker will still trip safely under overcurrent or short-circuit conditions even if the toggle handle is physically held in the ON position.
Is the FAZ-C40/1-NA-SP a current-limiting circuit breaker?
Yes, its current-limiting design provides fast short-circuit interruption. This reduces the peak let-through energy that could otherwise damage downstream circuit components and wiring.
How can I visually verify the contact status of this breaker?
The breaker features a color-coded indicator on the front face that provides immediate visual confirmation of the internal contact status, showing red for ON and green for OFF.
What does the SP suffix indicate in the FAZ-C40/1-NA-SP catalog number?
The SP suffix stands for Single Package, indicating that this specific Eaton catalog number is packaged individually for distribution rather than in bulk OEM quantities.
How much DIN rail space does this 1-pole breaker require?
This single-pole miniature circuit breaker requires approximately 17.5 millimeters of width on a standard 35mm DIN rail.
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