Eaton / Cutler-Hammer FAZ-D20/1-NA-SP Miniature Circuit Breaker
- 20A
- 1 Pole
- DIN Rail
Quantity
Eaton / Cutler-Hammer FAZ-D20/1-NA-SP - 20A 1 Pole Miniature Circuit Breaker
New
Quantity
Description
Designed to handle significant startup surges, this 20-amp single-pole breaker delivers robust overcurrent defense for industrial applications. It attaches to standard DIN rail networks and serves as an exact replacement for discontinued WMZT1D20 models. The thermal-magnetic D-curve profile permits the high inrush currents typical of inductive loads, preventing unnecessary interruptions. This current-limiting device provides a 14kAIC rating at 277VAC and includes a visual trip indicator.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FAZ-D20/1-NA-SP |
| Series | FAZ-NA |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | DIN Rail |
| Voltage | 277VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 14kA @ 277VAC, 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 | D |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Busbar System, Lockout Attachment, Padlock Attachment |
|---|---|
| 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, SWD Rated, Reverse Feed, Trip-Free Mechanism, Visual Trip Indicator, RoHS Compliant |
Product FAQs
8 answersWhat types of loads is the D trip curve on the FAZ-D20/1-NA-SP designed for?
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 Eaton FAZ-D20/1-NA-SP a current limiting circuit breaker?
Yes, this breaker features a current limiting design that interrupts fault currents within one half cycle. This reduces the peak let-through energy, offering superior protection against circuit damage.
How is the FAZ-D20/1-NA-SP circuit breaker mounted?
This miniature circuit breaker is designed for easy installation on standard 35mm DIN rail systems commonly used in industrial control panels.
What does the -SP suffix mean in the FAZ-D20/1-NA-SP catalog number?
The -SP suffix indicates that this single-pole breaker is sold in a single package. The core breaker specifications remain identical to the standard FAZ-D20/1-NA.
Does the FAZ-D20/1-NA-SP feature a trip-free mechanism?
Yes, it utilizes a trip-free design, meaning the breaker will still trip during an overload or short circuit even if the handle is physically held in the ON position.
What safety standards does the FAZ-NA series meet?
The FAZ-NA series is UL 489 listed for branch circuit protection and also complies with CSA C22.2 No. 5 and IEC 60947-2 standards.
What type of wire terminals are included on this Eaton breaker?
It features standard box lug screw terminals with captive screws that cannot be lost during installation. The terminals accept 18 to 6 AWG copper wire.
Can the FAZ-D20/1-NA-SP be used for switching lighting loads?
Yes, this 20A breaker is SWD (Switching Duty) rated, making it suitable for switching fluorescent lighting loads on a regular basis.
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