Eaton LGU340033B20G complete MCCB - UL Listed
Part Number: LGU340033B20G
Quick Summary
LGU340033B20G is a complete molded case circuit breaker that protects electrical distribution panels in industrial environments. When nuisance trips or unplanned downtime occur, engineers need a reliable, precisely calibrated device that minimizes disruption and keeps machines productive. This MCCB carries UL Listed, IEC Rated, and CSA Certified credentials with CE marking, supporting global compliance across markets. Designed for panel builders and system integrators, it pairs a compact LG frame with Digitrip 310 RMS electronics for accurate fault protection. Its 400 A rating, three-pole configuration, and metric mounting simplify integration into existing control panels while delivering predictable short-circuit response and long-term reliability.
Product Information
Extended Description
LGU340033B20G Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Digitrip 310 RMS, Electronic LS 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
LGU340033B20G
UPC
786685439372
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
UL Listed IEC Rated CSA Certified
Catalog Notes
LG breaker is HACR rated
Type
Complete breaker
Amperage Rating
400 A
Trip Type
T167
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
150 kAIC at 480 Vac 200 kAIC at 240 Vac 65 kAIC at 600 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 - LGU340033B20G
Eaton Specification Sheet - LGU340033B20G
Eaton Specification Sheet - LGU340033B20G
Feature: 400 A amperage rating with a three-pole LG frame ensures robust short-circuit protection in compact spaces. Impact: Enables higher load capacity in control panels without expanding footprint, reducing cabinet size and wiring complexity. Application: ideal for machine control panels and distribution boards in manufacturing facilities. Feature: Digitrip 310 RMS electronic LS trip provides accurate overload and short-circuit protection. Impact: improves selectivity, reduces nuisance tripping, and simplifies maintenance planning. Application: suitable for mixed-load panels and equipment with sensitive loads. Feature: Interrupt ratings of 150 kAIC at 480 Vac, 200 kAIC at 240 Vac, and 65 kAIC at 600 Vac. Impact: supports safe operation under severe short-circuit conditions, protecting equipment and limiting downtime. Application: large motor loads and high-energy distribution networks. Feature: 50 to 60 Hz operation with 80% rated duty. Impact: compatibility with international grids and energy-management strategies, enabling global deployments. Application: worldwide panel builds and OEM installations. Feature: High load alarm. Impact: proactive condition monitoring reduces unexpected outages and extends service intervals. Application: preventive maintenance programs in manufacturing lines. Feature: Line and load terminals with metric mounting; weight 15.3 lb. Impact: straightforward installation, retrofit potential, and consistent mounting across panel platforms. Application: retrofit projects and new equipment in control panels. Feature: Certifications UL Listed, IEC Rated, CSA Certified, CE Marked; HACR rated. Impact: ensures regulatory compliance and safer operation in diverse markets. Application: panel builders targeting global customers and regulated environments.
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FAQs
LGU340033B20G uses a metric mounting framework and an LG frame designed for easy retrofit into common industrial panels. With a three-pole configuration, line and load terminals, and a weight around 15.3 lb, it fits standard enclosure openings and mounting footprints, simplifying installation in new builds or panel refurbishments without oversized cooling or wiring changes.
This MCCB is rated for 400 A with a Digitrip 310 RMS electronic LS trip. It provides interrupt ratings of 150 kAIC at 480 Vac, 200 kAIC at 240 Vac, and 65 kAIC at 600 Vac, in a three-pole LG frame designed for 50 to 60 Hz systems. It is 80% rated for balanced duty, enhancing reliability in typical industrial loads.
Yes. The LGU340033B20G carries UL Listed, IEC Rated, CSA Certified, and CE Marked credentials, ensuring compliance with major international standards. This makes it suitable for global projects, from North American OEM installations to European and Asian panel builds, while maintaining HACR ratings for motor protection.
Eaton provides a warranty under policy 25-000: one year from installation or eighteen months from shipment, whichever comes first. This coverage supports replacement or repair for manufacturing defects and aligns with standard industry expectations for critical protection devices used in durable, mission-critical electrical systems.
Series G MCCBs like LGU340033B20G are ideal for motor control centers, machine tooling panels, and distribution boards in manufacturing, processing, and equipment-integration environments. The combination of high interrupt ratings, precise Digitrip protection, and global certifications supports reliable performance in demanding industrial applications.