Eaton / Cutler-Hammer FWF42250L Molded Case Circuit Breaker
- 225A
- 4 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer FWF42250L - 225A 4 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for industrial applications, the Eaton FWF42250L 225A, 4-pole molded case circuit breaker belongs to the Series C family. It utilizes fixed thermal-magnetic trip units to deliver consistent LI protection. This F-Frame breaker installs into Eaton Pow-R-Line C panelboards, switchboards, and motor control centers. The unit mount design features line and load lugs for 4 AWG to 4/0 AWG conductors. Rated at 40 kAIC at 240V, it is reverse feed capable and HACR rated for versatile integration.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FWF42250L |
| Series | FWF |
| Amperage | 225A |
| Poles | 4 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 250VDC, 415VAC, 690VAC |
| Phase | 3 |
| AIC Rating | 40kA @ 240VAC, 40kA @ 415VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Pow-R-Line C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG-4/0 AWG |
| Max Wire | 4/0 AWG |
| Min Wire | 4 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, Handle Lock, Terminal Shields |
|---|---|
| Accessories | Line and Load Terminals |
| Standards | IEC 60947-2 |
| Approval | IEC |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, Common Trip |
Product FAQs
5 answersHow is this breaker mounted within a panel?
The FWF42250L is a unit mount breaker, meaning it is secured using mounting hardware directly to the backpan or mounting surface of Eaton Pow-R-Line C panelboards, switchboards, or motor control centers. It does not plug onto a busbar.
Are line and load lugs included with this breaker?
Yes, the L at the end of the FWF42250L catalog number signifies that it comes with factory-installed line and load lugs. These terminals are sized to accommodate 4 AWG to 4/0 AWG conductors.
Why would a panel builder specify a 4-pole breaker instead of a standard 3-pole?
A 4-pole breaker is required when the system design dictates that the neutral conductor must be switched alongside the three phase conductors. This is standard practice in certain transfer switch applications, separately derived systems, or to meet specific local isolation codes.
Can the trip curve be adjusted for coordination studies?
No, this specific model features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip points are factory calibrated and cannot be modified in the field to alter the coordination curve.
Is this breaker suitable for reverse feeding?
Standard Eaton Series C thermal-magnetic breakers without a Line and Load marking are generally suitable for reverse feeding. Always verify the physical labeling on the breaker faceplate before wiring, as specific factory-installed accessories may restrict the feed direction.
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