Eaton / Cutler-Hammer FI3100L Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Eaton / Cutler-Hammer
FI3100L
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FI3100L
Quantity
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Eaton / Cutler-Hammer FI3100L - 100A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial applications, the Eaton FI3100L provides long-time and instantaneous trip functions. This three-phase unit installs into Series C panelboards and switchboards, serving as a robust solution for power distribution. While this specific F-Frame model has been succeeded by the FD3100L, it remains a vital component for maintaining existing infrastructure. It features a 25kA interrupting capacity at 240VAC and accommodates 14 to 1/0 AWG wire sizes.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FI3100L |
| Series | FI |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC, 14kA @ 480Y/277VAC, 14kA @ 480VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Switchboards |
| 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 |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | UL 489, NEMA AB 1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
6 answersWhat equipment is compatible with the FI3100L circuit breaker?
The FI3100L is designed for installation in Eaton and Cutler-Hammer Series C panelboards and switchboards that accept F-frame molded case circuit breakers.
What wire sizes are supported by the FI3100L lugs?
The standard line and load side lugs accept 14 AWG to 1/0 AWG copper or aluminum (Cu/Al) conductors.
Are line and load lugs included with the FI3100L?
Yes, the L suffix in the catalog number indicates that the breaker is factory-equipped with standard line and load side lug terminals.
Are the trip settings adjustable on the FI3100L?
No, this breaker features a non-interchangeable thermal magnetic trip unit with fixed long-time and fixed instantaneous (LI) trip functions.
Is the FI3100L a direct replacement for older Cutler-Hammer models?
Yes, this breaker directly replaces legacy Cutler-Hammer and Westinghouse FI3100L breakers used in existing Series C F-frame distribution equipment.
How is the FI3100L mounted?
It is a unit-mount, feed-thru circuit breaker. It bolts directly to the mounting surface or enclosure rather than plugging into a busbar.
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