Eaton / Cutler-HammerEGH2125FFB
Eaton / Cutler-Hammer EGH3125FFB Molded Case Circuit Breaker
- 125A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
EGH3125FFB
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
EGH3125FFB
Quantity
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Eaton / Cutler-Hammer EGH3125FFB - 125A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial power distribution, the Eaton EGH3125FFB is a 3-pole, 125A Series G MCCB. It utilizes a thermal-magnetic trip unit for reliable LI protection. This EG-frame breaker features a bolt-on mounting style, designed specifically for Eaton Pow-R-Line panelboards. Load side lugs and mounting hardware are included. Rated 65kAIC at 480VAC, it delivers high interrupting capacity and current-limiting performance with a patented blow-open contact design.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | EGH3125FFB |
| Series | EGH |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC, 415VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600Y/347VAC, 42kA @ 250VDC, 70kA @ 415VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Pow-R-Line Panelboards |
| 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, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Load Side Lugs, Mounting Hardware |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, KEMA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Reverse Feed, High Interrupting Capacity |
Product FAQs
8 answersWhat panelboards are compatible with the Eaton EGH3125FFB circuit breaker?
The EGH3125FFB is designed specifically for use in Eaton Pow-R-Line panelboards. It features a bolt-on mounting style that connects directly to the panel's bus assembly.
What is the difference between the EGH3125FFB and EGH3125FFG?
The EGH3125FFB is a bolt-on breaker designed to mount directly to the bus of a panelboard. The EGH3125FFG is a standard cable-in/cable-out breaker that includes both line and load-side lug terminals.
Can I adjust the trip settings on the EGH3125FFB?
No, the EGH3125FFB features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous (LI) trip thresholds are factory-set at 125 amps and cannot be adjusted in the field.
What size wire can be used with the load-side lugs on the EGH3125FFB?
The standard load-side lugs on this EG-frame breaker accept 14 AWG to 1/0 AWG copper or aluminum wire.
Does the EGH3125FFB include mounting hardware?
Yes, when purchased as a complete bolt-on breaker for Pow-R-Line panels, the necessary mounting hardware and load-side lugs are included for installation.
How does the EGH3125FFB achieve its high interrupting ratings?
This Series G breaker utilizes a patented contact design with high-speed blow-open action. This current-limiting performance allows it to safely and rapidly clear high-level faults.
What safety and regulatory standards does the EGH3125FFB meet?
This Series G breaker is UL Listed and meets CSA, IEC, CCC, and CE requirements, providing worldwide acceptance for commercial and industrial power distribution.
Can the EGH3125FFB replace an older Cutler-Hammer EG-frame breaker?
Yes, because Eaton acquired Cutler-Hammer, the EGH3125FFB is a direct, exact replacement for older Cutler-Hammer breakers bearing the same catalog number.
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