Eaton / Cutler-Hammer LGC3400FAG Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer LGC3400FAG - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for demanding industrial applications, the Eaton LGC3400FAG is a 400A, 3-pole molded case circuit breaker. It belongs to the Series G LG-frame lineup. Designed for unit-mount installations, it fits into Eaton Series G panelboards, switchboards, and motor control centers. It substitutes the PDG33P0400TFAJ. The breaker features a fixed thermal and adjustable magnetic trip unit to customize short-circuit response. It boasts a 100kAIC interrupting capacity at 480V.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | LGC |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 50kA @ 600VAC, 42kA @ 250VDC |
| Frame Type | LG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series G Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | (2) 2 AWG-500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 2 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, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, 80% Rated |
Product FAQs
7 answersIs the LGC3400FAG compatible with older Cutler-Hammer panels?
It is specifically designed for Eaton Series G panelboards, switchboards, and motor control centers. Verify your enclosure accepts LG-frame breakers before installation.
How do I adjust the trip settings on the LGC3400FAG?
The thermal element is fixed at 400A, but the magnetic (instantaneous) trip is adjustable via dials on the face of the breaker to coordinate with downstream loads.
Are line and load terminals included with this breaker?
Yes, the G at the end of the FAG catalog suffix indicates that standard line and load lugs are included. They accept two 2 AWG to 500 kcmil aluminum or copper wires per phase.
What does the C in the LGC3400FAG catalog number signify?
The C designates the interrupting capacity tier within the Eaton Series G LG-frame family. It provides a high interrupting rating of 200kAIC at 240VAC and 100kAIC at 480VAC.
Can the LGC3400FAG be used in direct current (DC) applications?
Yes, this thermal-magnetic breaker is rated for DC systems up to 250VDC, with an interrupting capacity of 42kAIC. It is suitable for substantially non-inductive DC circuits.
What is the difference between LGE, LGS, LGH, and LGC breakers?
These prefixes all represent Eaton Series G LG-frame breakers but indicate different interrupting capacities. LGE is the standard rating, while LGS, LGH, and LGC offer progressively higher short-circuit interrupting ratings.
What safety precautions should be taken before installing the LGC3400FAG?
Always de-energize the panelboard or switchboard before installation. Ensure the adjustable magnetic trip settings are properly configured for your specific load to provide adequate short-circuit protection.
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