Eaton / Cutler-Hammer LGE3300FAG Molded Case Circuit Breaker
- 300A
- 3 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer LGE3300FAG - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Designed to handle substantial electrical loads, this 300-amp thermal-magnetic breaker offers advanced current-limiting capabilities for industrial facilities. The component mounts into Eaton Series G switchboards and panelboards, providing a secure fit for three-phase systems. With a 65kAIC rating at 240V and 35kAIC at 480V, it utilizes an adjustable magnetic trip mechanism to fine-tune short-circuit response, making it ideal for protecting commercial distribution networks.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | LGE3300FAG |
| Series | LGE |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC, 22kA @ 250VDC |
| Frame Type | LG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series G Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 3 AWG - 500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 3 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | -20C to 70C |
| Construction Features | HACR Rated, Current Limiting, High-Speed Blow-Open Action, 80% Rated |
Product FAQs
8 answersWhat types of enclosures and equipment are compatible with the LGE3300FAG?
This LG-frame breaker is designed for installation in Eaton Series G panelboards, switchboards, and motor control centers (MCCs).
What does the "FAG" suffix mean in the LGE3300FAG catalog number?
The "F" indicates a fixed thermal trip, the "A" stands for an adjustable magnetic trip, and the "G" signifies that standard line and load terminals are included with the breaker.
How do I adjust the trip settings on this breaker?
The LGE3300FAG features a thermal-magnetic (LI) trip unit. The thermal (long-time) setting is fixed at 300 amps, while the magnetic (instantaneous) trip can be adjusted in the field using the dial located on the front of the trip unit.
What is the difference between Eaton LGE, LGS, and LGH circuit breakers?
The difference is the interrupting capacity (AIC) at 480VAC. The LGE is rated at 35kAIC, the LGS is rated at 50kAIC, and the LGH is rated at 65kAIC. All three share the same physical LG-frame footprint and accessory compatibility.
Can I install internal accessories like a shunt trip or auxiliary switch in the LGE3300FAG?
Yes, Eaton Series G LG-frame breakers support field-installable internal accessories. These components are mounted internally under the front cover of the breaker.
Does the LGE3300FAG provide ground fault protection?
No, this breaker is equipped with a standard thermal-magnetic (LI) trip unit, which only provides long-time and instantaneous protection. Ground fault protection requires an electronic LSIG trip unit or a separate earth leakage module.
Can I use the LGE3300FAG to replace an older Cutler-Hammer branded breaker?
Yes, the Eaton Series G LGE3300FAG is a direct replacement for older Cutler-Hammer breakers with the exact same catalog number. Eaton acquired Cutler-Hammer, and the Series G footprint and specifications remain identical.
Is the LGE3300FAG compatible with external motor operators?
Yes, Eaton Series G LG-frame circuit breakers can be fitted with external motor operators to allow for remote opening, closing, and resetting of the breaker.
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