Eaton LGU440033G Complete MCB - UL Listed, IEC Rated

Part Number: LGU440033G
LGU440033G
Manufacturer
Eaton
Part number
LGU440033G
Category

Quick Summary

The Eaton LGU440033G complete molded case circuit breaker protects power systems by isolating faults in industrial feeders. In real-world plants, unexpected trips and lengthy fault analysis stall production and drive maintenance costs. This unit is UL Listed, IEC Rated, and CSA Certified, ensuring compliance across North American and international panels. With a four-pole LG frame and Digitrip 310 RMS electronic LS trip, it delivers precise coordination at 240 to 600 V and 50/60 Hz, while metric mounting hardware and line-and-load terminals streamline installation in compact control panels. Leveraging Series G MCCB technology improves uptime, reduces spare-part inventories, and lowers total cost of ownership for engineered electrical distribution schemes.

Product Information

Extended Description

LGU440033G Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Digitrip 310 RMS, Electronic LS trip, Four-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
LGU440033G
UPC
786685184777
Product Length/Depth
4.09 in
Product Height
7.22 in
Product Width
7.22 in
Product Weight
15.7 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 CSA Certified IEC Rated
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
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
Four-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 High performance operating handles for Series G circuit breakers product aid Breaker service centers Circuit Protection, Molded Case Circuit Breakers, Volume 4, Tab 2 MOEM MCCB product selection guide MOEM MCCB product selection guide MOEM MCCB product selection guide
Feature: Digitrip 310 RMS electronic LS trip provides precise, fast protection. Business impact: minimizes nuisance tripping and improves selective coordination, reducing unplanned downtime in high-demand applications. Application: machine tooling, material handling, and packaging lines where stable operation is critical. Feature: 400 A rating with high interrupt ratings (65 kAIC at 600 Vac; 200 kAIC at 240 Vac; 150 kAIC at 480 Vac). Business impact: supports high fault-current environments and protects feeders without oversizing equipment. Application: industrial panels feeding motors and drives in mixed-voltage systems. Feature: LG frame, four-pole, line and load terminals with metric mounting hardware. Business impact: simplifies installation, improves enclosure fit, and speeds field retrofits. Application: control panels with tight tolerances and space constraints. Feature: UL Listed, CSA Certified, IEC Rated, and CE Marked with HACR rating. Business impact: ensures regulatory compliance, safer operation, and wider panel compatibility across regions. Application: international projects and OEM build-outs requiring formal certifications. Feature: compact footprint (4.09 in depth; 7.22 in height and width) and 15.7 lb weight. Business impact: enables denser panel layouts and easier handling during installation. Application: switchgear assemblies and retrofit projects where space is at a premium. Insight: Eaton provides MOEM MCCB guides and Series G product aids to support engineers in selecting and deploying the right MCCB for ongoing maintenance and future expansion.

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FAQs

LGU440033G is a 400 A four-pole molded case circuit breaker designed for 50/60 Hz systems. It supports high fault-current environments with interrupt ratings up to 200 kAIC at 240 Vac, 150 kAIC at 480 Vac, and 65 kAIC at 600 Vac, making it suitable for diverse industrial feeders and machine power distribution.
Yes. The LGU440033G is UL Listed, IEC Rated, and CSA Certified, with CE marking in some configurations. This combination ensures regulatory compliance for North American and international panel builds, simplifiying procurement and reducing certification cycles for multinational projects.
At 240 Vac, LGU440033G provides 200 kAIC interrupt rating; at 480 Vac it offers 150 kAIC; and at 600 Vac it delivers 65 kAIC. These ratings enable robust protection for high-current loads while maintaining coordination with downstream protection devices.
The LGU440033G uses metric mounting hardware and line-and-load terminals on an LG-frame, four-pole design. Its compact depth of 4.09 in and overall footprint support dense panel layouts, faster retrofits, and easier field installation with standardized mounting and termination practices.
Eaton provides dedicated guidance, including the MOEM MCCB product selection guide and series G product aids. Breaker service centers and comprehensive catalogs are available to support configuration, spares, and maintenance planning for long-term reliability.