Eaton LGS3400AAG Series G MCCB - UL Listed
Part Number: LGS3400AAG
Quick Summary
Eaton Series G molded case circuit breaker provides reliable overcurrent protection for industrial control panels and power distribution systems. Engineers often wrestle with achieving fast fault interruption while maintaining selective coordination across varying voltages and loads, which can drive costly downtime. UL Listed, HACR rated, and IEC-friendly with adjustable thermal and magnetic trip features help ensure both compliance and reliable protection. The LG-frame design and metric mounting hardware simplify panel layouts, reducing installation time, while the line-and-load terminals support straightforward wiring and future upgrades. For equipment operators, predictable trip behavior translates to minimized nuisance trips and easier maintenance planning.
Product Information
Extended Description
LGS3400AAG Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Adjustable thermal, adjustable magnetic trip, Three-pole, 400A, 85 kAIC at 240 Vac, 50 kAIC at 480 Vac, 25 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
LGS3400AAG
UPC
782116120499
Product Length/Depth
4.09 in
Product Height
5.48 in
Product Width
5.48 in
Product Weight
16 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.
Certifications
UL Listed
Catalog Notes
Adjustable thermal, adjustable magnetic trip units are typically used in IEC markets and are not UL or CSA listed, LG breaker is HACR rated
Type
Complete breaker
Amperage Rating
400 A
Trip Type
Adjustable thermal, adjustable magnetic
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
25 kAIC at 600 Vac 85 kAIC at 240 Vac 50 kAIC at 480 Vac
Number of poles
Three-pole
Application of Tap Rules to Molded Case Breaker Terminals
Application of Tap Rules to Molded Case Breaker Terminals
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
High performance operating handles for Series G circuit breakers product aid
Breaker service centers
Circuit Protection, Molded Case Circuit Breakers, Volume 4, Tab 2
Eaton Specification Sheet - LGS3400AAG
Eaton Specification Sheet - LGS3400AAG
Eaton Specification Sheet - LGS3400AAG
Feature: Three-pole LG-frame, 400 A complete breaker with adjustable thermal and magnetic trip. Business Impact: Precise protection for high-demand loads with adjustable trip settings enables tailored coordination, reducing nuisance trips and extending equipment life. Application: Large motors and distribution feeders in control panels. Feature: Adjustable thermal and magnetic trip units. Business Impact: Fine-tuned protection across IEC markets, improving reliability during inrush and startup transients. Application: Machinery, conveyors, and process lines where miscoordination is costly. Feature: High interrupt ratings — 85 kAIC at 240 Vac, 50 kAIC at 480 Vac, 25 kAIC at 600 Vac. Business Impact: Robust fault withstand, safeguarding feeders and MCCs against severe short circuits. Application: Industrial plants with diverse voltage requirements. Feature: Line and load terminals with metric mounting hardware. Business Impact: Simplified wiring and flexible installation, enabling faster panel builds and smoother retrofit projects. Application: New installations and upgrades in space-constrained panels. Feature: UL Listed and HACR rated. Business Impact: Regulatory compliance and motor-protective capability, reducing compliance risk and improving service life. Application: Commercial and industrial gear including motors and control gear. Feature: 50/60 Hz operation and 80% rated. Business Impact: Consistent performance across global facilities and efficient derating for continuous loads. Application: International projects and mixed-voltage environments.
Get a Quick Quote for a Eaton LGS3400AAG
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton LGS3400AAG?
Enquire Now
FAQs
The LGS3400AAG is a three-pole LG-frame MCCB with line and load terminals and metric mounting hardware. Its compact footprint (4.09 in depth, 5.48 in height and width) simplifies panel layout, reduces wiring complexity, and supports straightforward retrofits. Ensure proper torque on terminals and verify compatibility with your panel busbar assemblies and mounting spaces.
This MCCB is rated for 400 A with adjustable thermal and magnetic trip. It provides interrupt ratings of 85 kAIC at 240 Vac, 50 kAIC at 480 Vac, and 25 kAIC at 600 Vac, operates at 50/60 Hz, and is 80% rated. It is designed for line-and-load connections in LG-frame configurations and supports IEC market applications.
Yes. The unit uses adjustable trip units typically associated with IEC markets and is HACR rated. While some adjustable trip configurations are not UL or CSA listed, the LG-frame LGS3400AAG provides robust, IEC-friendly protection with UL Listed certification, suitable for motor and load protection in international control panels.
UL Listing confirms conformance to recognized safety standards, while HACR rating indicates suitability for motor control and heater load protection. Together, they support regulatory compliance, improved motor protection, and reduced nuisance trips, especially in facilities with mixed motor and non-motor loads. This translates to lower maintenance costs and increased equipment uptime.
The LGS3400AAG is covered by Eaton's standard warranty policy, 25-000, offering one year from installation or eighteen months from shipment, whichever comes first. Additional resources include application notes and datasheets to assist with installation, coordination, and maintenance planning, helping ensure a favorable total cost of ownership.