Eaton LGU340035B20G Molded Case Breaker - 200 kAIC @240V UL

Part Number: LGU340035B20G
LGU340035B20G
Manufacturer
Eaton
Part number
LGU340035B20G
Category

Quick Summary

The Eaton LGU340035B20G molded case circuit breaker protects industrial electrical systems in control panels and switchgear. When protection devices trip too often or miscoordinate, downtime and maintenance costs rise. It carries IEC-rated and UL-listed certifications with CSA certification and CE marking for global deployment. As part of Series G with an LG frame, it enables compact installation, precise protection, and scalable panel design for modern industrial facilities.

Product Information

Extended Description

LGU340035B20G Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Digitrip 310 RMS, Electronic LSG trip, Three-pole, 400A, 200 kAIC at 240 Vac, 150 kAIC at 480 Vac, 65 kAIC at 600 Vac, Line and load, Metric, High load alarm, 50/60 Hz, 80% rated
Product Name
Eaton Series G complete molded case circuit breaker
Catalog Number
LGU340035B20G
UPC
786685583662
Product Length/Depth
4.09 in
Product Height
5.48 in
Product Width
5.48 in
Product Weight
15.3 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
Electronic LSG
Circuit breaker type
LG
Circuit breaker frame type
Complete breaker
Alarm lockout
High load alarm
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 Vac 150 kAIC at 480 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 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 - LGU340035B20G Eaton Specification Sheet - LGU340035B20G Eaton Specification Sheet - LGU340035B20G
Feature: 400 A amperage rating supports high-power circuits with controlled inrush and fault current handling. Business Impact: Enables safe main protection in large control panels, reducing uncontrolled outages and equipment damage. Application: Main distribution for machine centers and packaging lines. Feature: Electronic LSG trip with 50/60 Hz operation and 80% rating. Business Impact: Precise, fast clearance of faults while maintaining allowed loading, improving system reliability. Application: Critical process lines requiring selective coordination and energy efficiency. Feature: Line and load terminals with metric mounting hardware. Business Impact: Simplified installation and reduced wiring errors, enabling quicker panel upgrades and standardized assemblies. Application: Retrofit projects and new builds with LG-frame MCCBs. Feature: High load alarm and HACR-rated catalog notes. Business Impact: Immediate fault indication and safe motor protection for HVAC, conveyors, and fans. Application: Industrial HVAC and motor-driven processes. Feature: Three-pole LG frame, 65 kAIC at 600 Vac, 200 kAIC at 240 Vac, 150 kAIC at 480 Vac. Business Impact: Enhanced fault current resilience across voltages, improving protection coordination. Application: Multi-voltage distributions and critical power paths. Feature: 400 A short-circuit withstand with 50/60 Hz compatibility. Business Impact: Supports global operations and diverse supply agreements, reducing rework and stocking needs. Application: Global manufacturing facilities and international panel builds.

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FAQs

The LGU340035B20G is designed for the LG frame and uses metric mounting hardware, ensuring straightforward retrofits or new builds. It supports line and load terminations with standard three-pole configuration and HACR-rated operation. For compatibility, verify mounting footprint, torque specs on terminals, and alignment with existing enclosure rails to minimize rework and ensure proper electrical clearances.
This breaker provides 200 kAIC at 240 VAC, 150 kAIC at 480 VAC, and 65 kAIC at 600 VAC. It is a three-pole LG-frame unit with a 400 A rating and uses Electronic LSG trip. These ratings support coordinated protection in mixed-voltage panels and help maintain selectivity under high fault currents.
Series G LG-frame MCCBs are well-suited for control panels, motor control centers, and distribution boards across manufacturing, process, and packaging environments. The LGU340035B20G’s 400 A rating, HACR capability, and high interrupt ratings make it ideal for high-demand processes, while the compact LG frame supports tight panel layouts and scalable protection strategies.
The LGU340035B20G carries IEC ratings, UL Listed, CSA Certified, and CE marking, with HACR-rated catalog notes. This combination ensures global compliance, safe integration with diverse electrical systems, and easier acceptance in international projects and end-user audits.
With a robust electronic trip, high fault current withstand, and clear alarm signaling (high load alarm), downtime is reduced and maintenance planning becomes more predictable. The 25-000 warranty window plus standard Eaton support helps minimize total cost of ownership, while reliable protection reduces nuisance trips and equipment wear in critical lines.