Eaton LGU340035B21G Complete MCCB - UL Listed

Part Number: LGU340035B21G
Manufacturer
Eaton
Part number
LGU340035B21G

Quick Summary

Eaton LGU340035B21G is a complete molded case circuit breaker designed for panel boards and motor control centers. Finding a reliable MCCB that fits LG-frame installations and meets uptime goals can be challenging in demanding electrical rooms. This device carries UL Listed, CSA Certified, and CE Marking to support global compliance and personnel safety. It combines Series G protection with Digitrip 310 RMS electronic trip and a ground fault alarm with right-hand trip for enhanced fault visibility. With a 400 A rating and 200 kAIC interrupt capability at 240 VAC, it scales to industrial automation needs, while metric mounting and line/load terminals simplify field installation. This combination delivers robust protection, reduced downtime, and straightforward maintenance planning.

Product Information

Extended Description

LGU340035B21G 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/load, Metric, Ground fault alarm with right-hand trip
Product Name
Eaton Series G complete molded case circuit breaker
Catalog Number
LGU340035B21G
UPC
786685445779
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
CSA Certified IEC Rated UL Listed
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
Ground fault alarm with right-hand trip
Rating
80% rated
Series
Series G
Terminals
Line and load
Frame
LG
Frequency rating
50 to 60 Hz
Mounting hardware
Metric
Interrupt rating
200 kAIC at 240 Vac 65 kAIC at 600 Vac 150 kAIC at 480 Vac
Number of poles
Three-pole
Feature: Digitrip 310 RMS electronic trip provides precise fault detection and faster coordination. Business Impact: reduces nuisance trips and improves protection selectivity in control panels. Application: motor control centers and machine panels in manufacturing lines benefit from consistent protection. Feature: Ground fault alarm with right-hand trip enhances fault visibility and safety. Business Impact: quicker fault localization minimizes downtime and maintenance cost. Application: critical automation loads in process plants and packaging lines. Feature: Interrupt ratings of 200 kAIC at 240 VAC, 150 kAIC at 480 VAC, and 65 kAIC at 600 VAC deliver high fault withstand. Business Impact: protects feeders and downstream equipment during short circuits. Application: large motors and heavy-load circuits in industrial facilities. Feature: 400 A amperage rating supports main feeders while preserving cabinet space. Business Impact: enables efficient panel design and reduces wiring complexity. Application: new builds and retrofit projects in factories and distribution centers. Feature: LG frame compatibility with metric mounting and line/load terminals simplifies installation. Business Impact: reduces commissioning time and improves connection reliability. Application: field upgrades and OEM panel assemblies. Feature: HACR rating, CE marking, CSA certification, and UL listing ensure code compliance. Business Impact: accelerates project approvals and minimizes risk during audits. Application: commercial, industrial, and multi-site facilities seeking robust regulatory alignment.

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FAQs

The LGU340035B21G uses a three-pole LG frame with line and load terminals and metric mounting hardware. For installation, ensure proper alignment with the panel’s mounting rails, verify terminal torque specs, and maintain appropriate clearances for heat dissipation. The unit supports easy retrofits and straightforward wiring with standard MCCB terminations, reducing field wiring time and potential connection issues.
Digitrip 310 RMS provides precise, electronic tripping logic that improves coordination and minimizes nuisance trips. This translates to more reliable motor and load protection, shorter fault clearing times, and enhanced uptime in automation panels. It also supports consistent performance across 50–60 Hz systems, making it suitable for global deployments.
Yes. The LGU340035B21G offers high interrupt ratings: 200 kAIC at 240 VAC, 150 kAIC at 480 VAC, and 65 kAIC at 600 VAC. This makes it appropriate for large motor feeders and diverse industrial applications, while maintaining reliable protection across varying supply voltages and fault conditions.
This MCCB is UL Listed, CSA Certified, and CE Marked, confirming compliance with widely recognized U.S., Canadian, and international electrical standards. These certifications support safe integration into regulated facilities, facilitate inspections, and help meet project requirements for commercial and industrial environments.
With a 1-year warranty or 18 months from shipment, whichever comes first, the unit minimizes long-term risk. The combination of precise protection, reduced nuisance trips, and high fault withstand reduces downtime and maintenance costs. Its compatibility with metric mounting and line/load terminals streamlines upgrades, delivering faster ROI through improved reliability and easier serviceability.