Eaton LGX3400FAG MCCB - 200 kAIC @ 240/480 Vac, Series G

Part Number: LGX3400FAG
Manufacturer
Eaton
Part number
LGX3400FAG

Quick Summary

Eaton LGX3400FAG molded case circuit breaker protects power distribution panels in industrial installations. Engineers often struggle with nuisance trips, miscoordination, and lengthy field troubleshooting; this LG-series MCCB delivers fixed thermal protection with an adjustable magnetic trip to improve reliability and uptime. The device carries UL Listed, CSA Certified, and CE Marked certifications, with HACR rating noted in the catalog, supporting safe operation across multiple jurisdictions. With an 400 A amperage rating and 80% operating capability, the LGX3400FAG provides robust protection without oversizing panels. Optimized for metric mounting and line-and-load terminals, it aligns with both domestic and international panel-building practices, delivering strong business value through reduced downtime and streamlined installation.

Product Information

Extended Description

LGX3400FAG Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Complete breaker, Fixed thermal, adjustable magnetic trip type, Three-pole, 400A, 200 kAIC at 240/480 Vac, 65 kAIC at 600 Vac, Line and load, Metric, 50/60 Hz, 80% rated
Product Name
Eaton Series G complete molded case circuit breaker
Catalog Number
LGX3400FAG
UPC
786685183657
Product Length/Depth
4.09 in
Product Height
5.48 in
Product Width
5.48 in
Product Weight
11.9 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
CE Marked
Certifications
IEC Rated UL Listed CSA Certified
Catalog Notes
LG breaker is HACR rated
Type
Complete breaker
Amperage Rating
400 A
Trip Type
T185
Circuit breaker type
LG
Circuit breaker frame type
Complete breaker
Rating
80% rated
Series
Series G
Terminals
Line and load
Frame
LG
Frequency rating
50 to 60 Hz
Mounting hardware
Metric
Interrupt rating
65 kAIC at 600 Vac 200 kAIC at 240/480 Vac
Number of poles
Three-pole
Feature → Business Impact → Application: The LG frame offers a complete three-pole breaker within the Series G family, enabling compact protection for medium-size distributions and motor control centers. This improves protection selectivity and reduces nuisance trips, lowering maintenance costs and machine downtime in manufacturing lines where precision protection is critical. Application: panelboards and switchgear in automotive, food & beverage, and process industries. Feature → Business Impact → Application: Fixed thermal with adjustable magnetic trip (T185) provides tailored fault detection, enabling faster clearing of faults and improved coordination with upstream devices. This translates to reduced arc flash exposure and safer shutdowns, especially in high-load machines and conveyors. Application: primary motor drives and conveyors. Feature → Business Impact → Application: 400 A rating and 65 kAIC at 600 Vac / 200 kAIC at 240/480 Vac deliver high fault-current protection in clean-room robotics and packaging lines, improving reliability under short-circuit conditions. Application: critical equipment protection in postal and logistics hubs. Feature → Business Impact → Application: Line and load terminals with metric mounting simplify installation and field wiring, reducing commissioning time by hours per panel. Application: new panel builds and retrofits across international sites. Feature → Business Impact → Application: HACR-rated designation supports safe operation in commercial and industrial HVAC-driven systems, ensuring compliance with energy-management stewardship. Application: HVAC equipment, control panels, and shared distribution spaces.

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FAQs

LGX3400FAG uses metric mounting hardware and line/load terminals that align with Series G molded case breakers. This provides straightforward installation in metric panels and compatible enclosures, reducing retrofit complexity. For best results, verify panel cutouts and bus bar spacing against Eaton’s Series G documentation and ensure correct torque on terminations to maintain protection integrity.
LGX3400FAG is a 400 A three-pole MCCB with fixed thermal and adjustable magnetic trip (T185). It offers 65 kAIC at 600 Vac and 200 kAIC at 240/480 Vac, operating at 50–60 Hz with 80% rated. These specs enable robust short-circuit protection, precise coordination with upstream devices, and lower probabilities of nuisance trips in high-current machines and panel boards.
Yes. LGX3400FAG is UL Listed, CSA Certified, and CE Marked, with HACR rating noted in catalog notes. These certifications support compliance across North America and Europe, easing procurement for multinational facilities, and satisfying safety and performance standards required for electrical protection devices in regulated environments.
LGX3400FAG comes with Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever occurs first. Routine maintenance includes periodic inspection of connections, verification of trip settings, and cleanliness of enclosure. Following these guidelines helps sustain reliable protection, reduces nuisance trips, and maintains compliance with safety standards.
This three-pole LG-frame MCCB excels in panel protection, motor control centers, and distribution boards for manufacturing, packaging, and process industries. Its high interrupt ratings, HACR rating, and Series G coordination enable safer startup, improved circuit protection, and faster commissioning, yielding lower downtime and longer equipment life in critical electrical systems.