Eaton / Cutler-Hammer FD4070L Molded Case Circuit Breaker
- 70A
- 4 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer FD4070L - 70A 4 Pole Molded Case Circuit Breaker
New
Quantity
Description
Designed for heavy-duty commercial use, the Eaton FD4070L is a 4-pole, 70A molded case circuit breaker that ensures consistent power distribution. It is an integral component of the Series C F-frame lineup, built to handle demanding electrical loads. The breaker mounts easily into compatible Eaton switchboards, panelboards, and enclosures. Equipped with non-interchangeable thermal-magnetic trip technology, it provides reliable LI protection and is fully HACR rated for HVAC applications.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FD4070L |
| Series | FD |
| Amperage | 70A |
| Poles | 4 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Enclosures |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs (Included) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
6 answersIs the Eaton FD4070L a direct replacement for older Cutler-Hammer or Westinghouse FD breakers?
Yes. Eaton acquired the Cutler-Hammer and Westinghouse distribution equipment lines. The FD4070L is a direct, interchangeable replacement for older Cutler-Hammer and Westinghouse breakers sharing the exact same catalog number.
What does the L suffix in the FD4070L catalog number indicate?
In Eaton Series C F-frame breakers, the L suffix indicates that the breaker is supplied with both line and load terminals installed from the factory. Without this suffix, standard F-frame breakers typically only include load-side lugs.
What is the purpose of the fourth pole on this circuit breaker?
The fourth pole is typically used for switching the neutral conductor in specific grounding schemes, such as generator transfer applications or systems requiring a fully isolated neutral.
What wire sizes are accepted by the standard lugs on the FD4070L?
The factory-installed line and load lugs accept 14 AWG to 1/0 AWG copper or aluminum wire.
What types of equipment are compatible with the FD4070L breaker?
This F-frame breaker is designed for bolt-on installation in Eaton Series C panelboards, switchboards, and standalone enclosures.
Are the thermal and magnetic trip settings adjustable on this breaker?
No. The FD4070L features a fixed thermal and fixed magnetic trip unit. Neither the long-time overload nor the instantaneous short-circuit trip functions can be adjusted in the field.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 14 reviews.
- SGStephen G.Verified BuyerReviewingEaton / Cutler-Hammer FD3175 - 175A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars7/13/26175amp molded case circuit breaker
The breaker we purchased was as advertised. The breaker fit perfectly. We purchased reconditioned breaker and it seems to be working properly, accordingly to the golf course maintenance team that supervises the irrigation system.
Next day shipping came quickly even though the 4th of July was coming.
I wish it came with new installations hardware but that isn’t a deal breaker.
- MBMichael B.Verified BuyerReviewingEaton / Cutler-Hammer FD3040 - 40A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/7/26Worked perfectly
This circuit breaker installed as expected and performed flawlessly.
- DQDavid Q.ReviewingEaton / Cutler-Hammer FD2080 - 80A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/17/23A+ Seller
Breaker came as described and was shipped out fast!
- OCOscar C.ReviewingEaton / Cutler-Hammer FD3175 - 175A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/20/23Great Service
Totally recommended
- MLMichael L.ReviewingEaton / Cutler-Hammer FD2050 - 50A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/2/22Quick and Easy
They had what we needed and were able to ship it quickly.