Eaton / Cutler-Hammer FAZ-D16/3-NA Miniature Circuit Breaker
- 16A
- 3 Pole
- DIN Rail
Quantity
Eaton / Cutler-Hammer FAZ-D16/3-NA - 16A 3 Pole Miniature Circuit Breaker
New
Quantity
Description
Engineered for marine and industrial environments, this 16A miniature circuit breaker delivers reliable overcurrent protection. It is calibrated for highly inductive loads like motors. This three-phase unit mounts onto standard DIN rail systems and industrial control panels. It serves as a direct replacement for the legacy WMZT3D16 breaker, ensuring seamless upgrades. Featuring a D-curve thermal-magnetic trip, it provides a 14 kAIC rating at 480Y/277VAC. It is HACR rated and current limiting.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FAZ-D16/3-NA |
| Series | FAZ-NA |
| Amperage | 16A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 480Y/277VAC, 96VDC |
| Phase | 3 |
| AIC Rating | 14kA @ 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 (1 wire), 18-10 AWG (2 wires) |
| 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 |
|---|---|
| Accessories | Auxiliary Switch, Busbar System, Lockout Attachment, Shunt Trip, Undervoltage Release |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | ABS, CE, CSA, DNV, IEC, Lloyd's, RoHS, UL, VDE |
| Temp Rating | -40C to 75C |
| Construction Features | Current Limiting, HACR Rated, Reverse Feed, Trip-Free Mechanism, Visual Trip Indicator, RoHS Compliant |
Product FAQs
10 answersWhat types of loads is the D-curve trip characteristic designed for?
The D-curve magnetic trip point operates at 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.
Does this breaker meet UL 489 requirements for branch circuit protection?
Yes, it is a UL 489 listed miniature circuit breaker approved for branch circuit protection. It can also be installed in applications where UL 1077 supplementary protectors are permitted.
What legacy Cutler-Hammer part number does this breaker replace?
The FAZ-D16/3-NA serves as a direct replacement for the legacy Cutler-Hammer WMZT3D16 miniature circuit breaker.
How does the current limiting design protect downstream equipment?
The current limiting mechanism interrupts fault currents within one half cycle. This rapid response significantly reduces peak let-through energy, preventing damage to the circuit and connected devices during a short circuit.
Will the breaker still trip if the handle is held in the ON position?
Yes, it features a trip-free mechanism. The breaker will automatically trip and disconnect power during an overcurrent or short circuit event, even if the handle is physically restricted.
How do you verify the contact position of the breaker?
The front of the breaker features a color-coded indicator for immediate visual status. Green indicates the contacts are open and the circuit is isolated, while red indicates the contacts are closed and power is flowing.
Are the terminals rated for reverse feeding?
Yes, this breaker supports reverse feed applications. Power can be safely supplied to either the line or load side terminals without affecting performance.
Is this breaker approved for use with HVAC equipment?
Yes, it carries an HACR rating, making it suitable for protecting heating, air conditioning, and refrigeration circuits.
Can this breaker be used in DC control circuits?
Yes, it is dual rated for both AC and DC applications, making it suitable for industrial control panels and DC power supplies within its specified voltage limits.
Does the breaker hardware include captive terminal screws?
Yes, the terminal screws are captive, preventing them from being dropped or lost during installation inside industrial control panels.
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