Eaton / Cutler-HammerFAZ-D10/3-NA
Eaton / Cutler-Hammer FAZ-D4/3-NA Miniature Circuit Breaker
- 4A
- 3 Pole
- DIN Rail
Eaton / Cutler-Hammer
FAZ-D4/3-NA
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FAZ-D4/3-NA
Quantity
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Eaton / Cutler-Hammer FAZ-D4/3-NA - 4A 3 Pole Miniature Circuit Breaker
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Description
Tailored for commercial and marine applications, the Eaton FAZ-D4/3-NA provides dependable three-phase protection. It is optimized for motor control systems requiring tolerance for high startup currents. This device installs onto standard DIN rail systems inside industrial control panels. It functions as a replacement for the legacy WMZT3D04. Rated 10 kAIC at 480Y/277VAC, it incorporates D-curve thermal-magnetic trip technology. The current-limiting design ensures system reliability.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FAZ-D4/3-NA |
| Series | FAZ-NA |
| Amperage | 4A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 480Y/277VAC, 96VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 480Y/277VAC, 10kA @ 96VDC |
| 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 | D |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Busbar System, Lockout Attachment, Shunt Trip, Undervoltage Release |
|---|---|
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489, RoHS |
| Approval | ABS, CCC, CE, CSA, DNV, HACR, IEC, Lloyd's, RoHS, SWD, UL, VDE |
| Temp Rating | -25C to 75C |
| Construction Features | Current Limiting, HACR Rated, Reverse Feed, Trip-Free Mechanism, Visual Trip Indicator, RoHS Compliant |
Product FAQs
8 answersWhat applications are best suited for the D-curve trip characteristic on the FAZ-D4/3-NA?
The D-curve magnetic trip point is 10 to 20 times the rated current. This makes it ideal for highly inductive loads with high inrush currents, such as motors, transformers, and power supplies, preventing nuisance tripping during startup.
Is the FAZ-D4/3-NA rated for branch circuit protection?
Yes, the NA suffix in the Eaton FAZ series indicates it is a UL 489 listed miniature circuit breaker. This makes it suitable for primary branch circuit protection in industrial control panels, unlike UL 1077 supplementary protectors.
How is the FAZ-D4/3-NA circuit breaker mounted in a panel?
It is designed for installation on standard 35mm DIN rail systems. It utilizes a spring clip for secure mounting in industrial control panels and can be reverse fed if required by the application.
Does this Eaton FAZ-NA breaker offer current limiting protection?
Yes, it features a current-limiting design that interrupts short-circuit fault currents within one half cycle. This reduces peak let-through energy, providing enhanced protection against downstream circuit damage.
Can the breaker be held in the ON position during a fault?
No, it features a trip-free design. The breaker will trip internally and disconnect the power supply during an overload or short circuit, even if the toggle handle is physically held in the ON position.
What type of wire connections does this breaker accept?
It features standard box lug terminals with captive screws that accept wire gauges from 18 AWG to 6 AWG. The captive screw design prevents hardware loss during installation.
Can the FAZ-D4/3-NA be used in DC control circuits?
Yes, this breaker is dual-rated for both AC and DC applications. It supports up to 96VDC with a 10kA interrupting capacity, making it versatile for various industrial control environments.
What international standards does the FAZ-D4/3-NA meet?
In addition to being UL 489 listed for North America, this breaker fulfills CSA C22.2 No.5 and IEC 60947-2 standards, making it suitable for global industrial control panel designs.
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