Eaton / Cutler-HammerEGS2050FFB
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Eaton / Cutler-Hammer EGS2040FFB Molded Case Circuit Breaker
- 40A
- 2 Pole
- Bolt-On
Eaton / Cutler-Hammer
EGS2040FFB
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
EGS2040FFB
Quantity
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Eaton / Cutler-Hammer EGS2040FFB - 40A 2 Pole Molded Case Circuit Breaker
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Description
Designed specifically for commercial power distribution, the Eaton EGS2040FFB is a 40A, 2-pole molded case circuit breaker. It delivers reliable fixed thermal and magnetic trip functions for standard facility applications. This EG-frame breaker installs into Eaton Pow-R-Line panelboards using a secure bolt-on configuration. It serves as a substitute for EGH2040FFB units. With an 85kAIC rating at 240VAC, it offers current-limiting performance and is fully HID and HACR rated.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | EGS |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 125/250VDC |
| Phase | 1 |
| AIC Rating | 85kA @ 240VAC, 35kA @ 480VAC, 22kA @ 600Y/347VAC, 35kA @ 125/250VDC |
| Frame Type | EG |
|---|---|
| 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 |
|---|---|
| Accessories | Mounting Hardware, Load Side Lugs |
| 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 | HACR Rated, Current Limiting, High-Speed Blow-Open Action, Non-Interchangeable Trip |
Product FAQs
8 answersWhich panelboards are compatible with the EGS2040FFB circuit breaker?
This EG-frame breaker is specifically designed for installation in Eaton Pow-R-Line panelboards.
What wire sizes are supported by the terminals on this 40A breaker?
The included lugs accept wire gauges ranging from 14 AWG to 1/0 AWG and are rated for use with both copper and aluminum conductors.
Can the EGS2040FFB be utilized in DC electrical systems?
Yes, in addition to its AC ratings, this thermal-magnetic breaker is rated for 125/250VDC applications with an interrupting capacity of 35kAIC.
What does the FFB suffix mean in the EGS2040FFB catalog number?
The FF designation indicates that the breaker is equipped with a fixed thermal and fixed magnetic trip unit. The B confirms the terminal and mounting configuration for this bolt-on breaker.
What type of overcurrent protection does this breaker provide?
It utilizes a thermal-magnetic trip unit to provide both long-time overload protection and instantaneous short-circuit protection.
Are the long-time and instantaneous trip functions adjustable on this model?
No, this breaker features fixed thermal and fixed magnetic trip settings, meaning the trip curve cannot be modified in the field.
Is this breaker compatible with older Cutler-Hammer systems?
Yes, Eaton acquired Cutler-Hammer, so this breaker is a direct, manufacturer-approved replacement for legacy Cutler-Hammer EGS2040FFB units installed in existing panels.
Does this breaker require a separate mounting kit for Pow-R-Line panelboards?
No, it features a built-in bolt-on connection type that allows it to mount directly to the panelboard bus without requiring additional adapter kits.
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