Eaton / Cutler-HammerFAZ-D10/1-NA-SP
Eaton / Cutler-Hammer FAZ-D40/1-NA-SP Miniature Circuit Breaker
- 40A
- 1 Pole
- DIN Rail
Eaton / Cutler-Hammer
FAZ-D40/1-NA-SP
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FAZ-D40/1-NA-SP
Quantity
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Eaton / Cutler-Hammer FAZ-D40/1-NA-SP - 40A 1 Pole Miniature Circuit Breaker
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Description
Part of the FAZ-NA series, this 40A single-pole miniature circuit breaker provides reliable branch circuit protection for commercial and industrial applications. It handles highly inductive loads, such as motors and transformers, where high startup inrush currents occur. The unit snaps securely onto standard 35mm DIN rail systems inside control panels. It serves as an exact replacement for the legacy WMZT1D40 model. Rated for 10 kAIC at 240VAC, it features a D-curve magnetic trip.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 | D |
| 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 | HACR Rated, Current Limiting, Reverse Feed, Trip-Free Mechanism, RoHS Compliant |
Product FAQs
8 answersWhat does the D curve signify on the FAZ-D40/1-NA-SP?
The D curve indicates a magnetic trip point of 10 to 20 times the rated current. This makes it ideal for highly inductive loads with significant inrush currents, such as motors, transformers, and specialized power supplies.
What is the difference between the FAZ-NA series and standard FAZ breakers?
The FAZ-NA series is UL 489 listed for branch circuit protection in North America. Standard FAZ breakers without the NA suffix are typically UL 1077 recognized for supplementary protection only.
What does the -SP suffix mean in the FAZ-D40/1-NA-SP catalog number?
The -SP suffix indicates that the breaker is sold in a single pack, meaning it is individually packaged rather than shipped in bulk quantities.
Can I install this breaker in a standard residential load center?
No. This is a DIN rail mounted miniature circuit breaker designed for industrial control panels and automation systems. It will not snap or bolt into standard residential load centers.
What type of equipment is this breaker best suited to protect?
Because of its D curve trip characteristic and UL 489 listing, it is ideal for branch circuit protection of highly inductive loads, such as motors, transformers, and heating, air conditioning, and refrigeration (HACR) equipment.
Can power be fed from either direction on this breaker?
Yes, the FAZ-NA series features a feed-thru connection type, meaning power can be supplied to the circuit breaker from either the line or load side terminals without affecting performance.
Does this breaker provide a visual status indication?
Yes, Eaton FAZ-NA breakers feature a color coded indicator that provides immediate visual confirmation of the device status, showing red for ON and green for OFF.
Does this breaker have a trip free design?
Yes, it features a trip free mechanism. The breaker will still trip during an overcurrent or short circuit event even if the handle is physically held in the ON position.
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