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Eaton / Cutler-Hammer FDB3070L Molded Case Circuit Breaker
- 70A
- 3 Pole
- Unit Mount
Eaton / Cutler-Hammer
FDB3070L
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FDB3070L
Quantity
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Eaton / Cutler-Hammer FDB3070L - 70A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial applications, this 70A F-Frame device delivers proven long-time and instantaneous trip functions. The unit mounts into standard Eaton switchboards, motor control centers, and standalone enclosures. It serves as a legacy component, with the PDG23F0070TFFJ acting as its modern Power Defense replacement. Rated for 14kAIC at 480VAC, the breaker includes factory-installed line and load lugs while supporting reverse feed configurations.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FDB3070L |
| Series | FDB |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton F-Frame Enclosures, Switchboards, Motor Control Centers |
| 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 |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
8 answersIs the FDB3070L a direct replacement for older Westinghouse FDB breakers?
Yes, the Eaton FDB3070L is a direct replacement for legacy Westinghouse and Cutler-Hammer FDB3070 breakers. They share the same physical dimensions and mounting requirements.
What does the L suffix mean in the FDB3070L catalog number?
The L suffix indicates that the breaker comes factory-equipped with standard pressure line and load lugs.
What is the difference between Eaton FDB and FD circuit breakers?
Both are Series C F-Frame breakers with identical physical dimensions, but they have different interrupting capacities. The FDB3070L is rated for 14kA at 480VAC, while the equivalent FD breaker has a higher interrupting rating of 35kA at 480VAC.
Can the FDB3070L be used in reverse feed applications?
Yes, Eaton Series C F-Frame thermal-magnetic circuit breakers, including the FDB3070L, are suitable for reverse feed use.
Can I adjust the trip settings on the FDB3070L?
No, the FDB3070L features a fixed thermal and fixed magnetic trip unit. If your application requires adjustable trip settings, you will need to select a different breaker frame with an electronic trip unit.
Is the FDB3070L rated for use on DC systems?
Yes, this breaker is rated for DC applications up to 250VDC with a 10kA interrupting capacity. Ensure proper pole wiring per Eaton guidelines when installing in a DC system.
What types of enclosures and equipment are compatible with the FDB3070L?
The FDB3070L is designed for unit mounting in Eaton F-Frame enclosures, switchboards, and motor control centers.
What wire sizes do the standard lugs on the FDB3070L accept?
The included standard line and load lugs accept 14 AWG to 1/0 AWG copper or aluminum wire.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
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Rating
2 reviews
- BBrentVerified BuyerReviewingEaton / Cutler-Hammer FDB3060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Breaker was as expected.
Breaker was clean, you could not tell it was used.
- RFRussell F.Verified BuyerReviewingEaton / Cutler-Hammer FDB3025 - 25A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/24/26Right product, right time
This is what I needed, and I got it in time.