Eaton / Cutler-HammerEGB3040FFG
Eaton / Cutler-Hammer EGB3040FFB Molded Case Circuit Breaker
- 40A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
EGB3040FFB
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
EGB3040FFB
Quantity
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Eaton / Cutler-Hammer EGB3040FFB - 40A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial and industrial applications, the EGB3040FFB delivers robust thermal-magnetic protection. This 40A molded case circuit breaker is part of the Series G EG-frame family. It features a bolt-on mounting style designed specifically for Eaton Pow-R-Line panelboards. For legacy system maintenance, this model is replaced by the PDG13C0040TFFJ, which requires a mounting kit. With an 18 kAIC rating at 480VAC, it offers current-limiting capabilities and reverse feed operation.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | EGB3040FFB |
| Series | EGB |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Pow-R-Line Panelboards |
| Wire Gauge | 14-1/0 AWG |
| 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, Handle Lock, Multi-Wire Lugs |
|---|---|
| Accessories | Load Side Lugs, Mounting Hardware |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed |
Product FAQs
7 answersWhich panelboards are compatible with the EGB3040FFB circuit breaker?
This Series G, EG-frame breaker is designed for installation in Eaton Pow-R-Line panelboards, as well as compatible Series G switchboards and motor control centers.
Does the EGB3040FFB mount via bolt-on or DIN rail?
The EGB3040FFB is natively a bolt-on circuit breaker, as indicated by the B suffix in the catalog number. While the EG-frame family can support DIN rail mounting, doing so requires a separate adapter bracket.
What wire gauge range do the terminals on this 40A breaker accept?
The standard line and load lugs accommodate copper or aluminum wire sizes from 14 AWG to 1/0 AWG.
Does the EGB3040FFB support DC voltage systems?
Yes, alongside its AC ratings, this breaker is rated for 250VDC applications with a 10kAIC interrupting capacity.
What does the FFB suffix mean in the EGB3040FFB part number?
In Eaton Series G nomenclature, FF stands for fixed thermal and fixed magnetic trip elements, and B indicates a bolt-on terminal connection.
Is the Eaton EGB3040FFB suitable for reverse feed applications?
Yes, standard EG-frame thermal magnetic breakers are HACR rated and support reverse feeding, making them versatile for various industrial power distribution setups.
What type of protection does the LI trip function provide?
The LI designation means the breaker provides Long-Time thermal protection against gradual overloads and Instantaneous magnetic protection against severe short circuits. Both settings are fixed on this model.
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