Eaton / Cutler-Hammer LGS3400FAG Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer LGS3400FAG - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Delivering 400A of reliable power distribution, this 3-pole molded case circuit breaker operates on 600VAC systems. This unit-mount LG-frame breaker installs into Eaton Series G panelboards and switchboards. It serves as an older generation model, now replaced by the Power Defense PDG33K0400TFAJ. Rated at 50 kAIC at 480V, it features a fixed thermal and adjustable magnetic trip unit for precise coordination. Line and load lugs are included, and the unit is HACR rated for HVAC applications.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | LGS3400FAG |
| Series | LGS |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 85kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC, 22kA @ 250VDC |
| Frame Type | LG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series G Panelboards, Switchboards, MCCs |
| Wire Gauge | 500-750 kcmil (Al/Cu) |
| Max Wire | 750 kcmil |
| Min Wire | 500 kcmil |
| 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, Motor Operator, Rotary Handle, Terminal Shields, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs Included, Mounting Hardware |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, IEC, KEMA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Reverse Feed, 80% Rated |
Product FAQs
5 answersDoes the LGS3400FAG include lugs, and what wire sizes do they accept?
Yes, this breaker includes standard aluminum line and load lugs, indicated by the "G" suffix in the catalog number. These lugs accept 500 to 750 kcmil aluminum or copper (Al/Cu) conductors.
What do the letters "FAG" mean in the LGS3400FAG catalog number?
In the Eaton Series G nomenclature, "FA" indicates that the breaker is equipped with a fixed thermal, adjustable magnetic trip unit. The "G" signifies that standard line and load lugs are included from the factory.
What does the "S" in the LGS3400FAG part number indicate?
The "S" designates it as a standard interrupting capacity breaker within the LG-frame family. It provides an interrupt rating of 50 kAIC at 480 VAC, whereas other models like the LGH or LGC offer higher interrupting capacities.
What equipment is the LGS3400FAG designed to be installed in?
This LG-frame molded case circuit breaker is engineered for use in Eaton Series G panelboards, switchboards, and motor control centers (MCCs).
Is there a difference between the Eaton and Cutler-Hammer versions of the LGS3400FAG?
No. Eaton acquired Cutler-Hammer, and the LGS3400FAG is manufactured under the Eaton brand to the exact same specifications as the legacy Cutler-Hammer models. They are fully interchangeable.
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