Eaton LGU3400AAG Complete LG Series G MCCB - UL Listed
Part Number: LGU3400AAG
Quick Summary
The Eaton LGU3400AAG molded case circuit breaker protects electrical distribution in industrial panels, providing precise protection for motors and feeders. Many teams struggle with nuisance trips and retrofit challenges when upgrading protection in aging systems. This LGU3400AAG is UL Listed and HACR rated, signaling compliance with safety standards and motor-load protection. Its Series G LG frame, adjustable thermal and magnetic trips, three-pole configuration, and 400 A rating support scalable panel protection. With a 200 kAIC at 240 Vac and 150 kAIC at 480 Vac interrupt ratings, it delivers reliable performance across environments. That combination helps cut downtime, improves safety, and reduces lifecycle costs while supporting common IEC and UL panel protection practices.
Product Information
Extended Description
LGU3400AAG Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Adjustable thermal, adjustable magnetic trip, Three-pole, 400A, 200 kAIC at 240 Vac, 150 kAIC at 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
LGU3400AAG
UPC
786685184944
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.
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
65 kAIC at 600 Vac 150 kAIC at 480 Vac 200 kAIC at 240 Vac
Number of poles
Three-pole
Application of Multi-Wire Terminals for Molded Case Circuit Breakers
Application of Multi-Wire Terminals for Molded Case Circuit Breakers
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 - LGU3400AAG
Eaton Specification Sheet - LGU3400AAG
Eaton Specification Sheet - LGU3400AAG
Feature: Complete LG-frame three-pole design in the Series G family. Business impact: delivers compact, standardized protection ideal for three-phase distribution and motor feeders, reducing spare-part complexity and accelerating panel assembly. Application: industrial automation cabinets and control panels. Feature: Adjustable thermal and adjustable magnetic trip units. Business impact: enables precise coordination and nuisance-trip reduction across varying load profiles, lowering unplanned downtime. Application: conveyors, pumps, and machine tools. Feature: 400 A amperage rating with 50/60 Hz suitability and robust interrupt ratings. Business impact: supports higher fault-current environments while maintaining safe, fast disconnection to protect equipment and personnel. Application: heavy industry and process lines. Feature: Line and load terminals with metric mounting hardware. Business impact: simplifies installation and retrofitting, ensuring compatibility with standard panel layouts and reducing commissioning time. Application: new builds and panel upgrades. Feature: UL Listed certification and HACR rating with Series G protection. Business impact: ensures regulatory compliance and safe operation in HVAC and control-panel ecosystems, enabling streamlined procurement and serviceability. Application: commercial and industrial facilities seeking reliable protection.
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FAQs
LGU3400AAG uses line and load terminals with metric mounting hardware, designed for LG-frame installation in metric control panels. This enables straightforward retrofits or new builds, reducing installation time and ensuring secure, code-compliant connections in industrial environments. Compatibility with standard panel layouts also simplifies spare-part planning and maintenance.
LGU3400AAG provides 200 kAIC interrupt rating at 240 Vac, 150 kAIC at 480 Vac, and 65 kAIC at 600 Vac. It features adjustable thermal and magnetic trip units for precise coordination, with three-pole configuration and a 400 A rating. This combination supports fast fault clearance and robust protection for demanding three-phase systems.
Yes, LGU3400AAG is designed for 3-phase protection in industrial panels and is UL Listed, aligning with UL environment expectations. Its adjustable trip units support IEC-style coordination needs, while the Series G LG frame and 400 A rating provide scalable protection for motor feeders and equipment across diverse manufacturing environments.
LGU3400AAG carries UL Listed certification and is HACR rated. The HACR rating indicates suitability for heating, air conditioning, and refrigeration circuits, allowing safe integration in HVAC-related control panels. UL Listing confirms compliance with recognized safety standards, facilitating regulatory acceptance and maintenance planning.
LGU3400AAG carries Eaton’s warranty policy of one year from installation or eighteen months from shipment, whichever occurs first. Eaton also provides service centers and technical support to minimize downtime and simplify spare-parts sourcing. This warranty and support framework helps lower total cost of ownership by reducing unplanned maintenance and accelerating repairs.