Eaton LGS340033W MCCB - Series G LG frame UL Listed

Part Number: LGS340035G
Manufacturer
Eaton
Part number
LGS340035G

Quick Summary

Eaton LGS340033W MCCB is a complete molded case circuit breaker for protecting industrial electrical panels. Engineers often struggle with accurate protection coordination across evolving loads and fault currents, risking nuisance trips and downtime. UL Listed and HACR-rated, with 50/60 Hz operation and high interrupt ratings—85 kAIC at 240 Vac, 50 kAIC at 480 Vac, 25 kAIC at 600 Vac—backed by an LG-frame design and a 400 A capability. The LG-frame Series G protection is designed for control panels and automation cabinets, delivering reliable performance with easy installation and scalable protection across manufacturing environments.

Product Information

Extended Description

LGS340035G Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Digitrip 310 RMS, Electronic LSG trip, Three-pole, 400A, 85 kAIC at 240 Vac, 50 kAIC at 480 Vac, 25 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
LGS340035G
UPC
782116994441
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
Electronic LSG
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
50 kAIC at 480 Vac 85 kAIC at 240 Vac 25 kAIC at 600 Vac
Number of poles
Three-pole
LG-frame Series G design enables robust protection in compact spaces while supporting high-current applications; the Digitrip 310 RMS electronic LS trip provides precise protection coordination, reducing nuisance trips and improving uptime. This translates to faster fault clearance, safer operations, and more consistent production through reliable circuit protection in machine centers and panel boards. The 400 A three-pole configuration handles demanding feeders with minimal heat rise and superior fault handing, supporting scalable automation architectures and easier panel upgrades. Interrupt ratings of 85 kAIC at 240 Vac, 50 kAIC at 480 Vac, and 25 kAIC at 600 Vac ensure selective coordination in high fault-current environments common in industrial facilities. The without-terminals design accelerates installation, minimizes wiring complexity, and shortens commissioning times on retrofit projects. HACR-rated UL Listed protection aligns with HVAC and general power distribution requirements, ensuring compliance across diverse installations. The 50/60 Hz compatibility and 80% rated field performance provide flexibility for mixed-voltage, mixed-load sites, while the Series G ecosystem supports existing accessories and straightforward maintenance planning, delivering long-term total cost of ownership reductions and predictable ROI.

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FAQs

For installation, ensure the three-pole LG-frame unit is mounted in a suitable enclosure with adequate clearance for heat dissipation. Since terminals are not included, plan for compatible lugs or adapters and confirm panel access for wiring. Use the Digitrip 310 RMS electronic LS trip settings to match protection to the load profile, and verify 50/60 Hz compatibility across your distribution sections. Dimensionally, the 4.09 in depth and 5.48 in width/height fit typical Series G panel spaces, enabling straightforward retrofits without extensive rewiring.
Digitrip 310 RMS provides an electronic, current-sensing trip tailored to three-pole configurations. It responds to fault currents with fast, accurate tripping while suppressing nuisance trips from transient conditions. This precise protection is critical for applications with variable loads, ensuring machine availability and reduced maintenance actions. The RS trip logic supports coordination with upstream protection schemes and helps meet safety and reliability targets in automation panels.
Yes. The LGS340033W is rated at 400 A and offers interrupt ratings of 85 kAIC at 240 Vac and 50 kAIC at 480 Vac, with 25 kAIC at 600 Vac. This makes it suitable for high-current feeders in industrial settings where fault currents can vary between supply voltages. The LG-frame, three-pole configuration provides robust protection for critical loads while maintaining coordination with other protective devices.
The LGS340033W is UL Listed and HACR rated, which supports compliance in a wide range of electrical installations, including HVAC-related loads. These certifications are essential for safety, product traceability, and regulatory acceptance in industrial buildings and manufacturing facilities. Ensuring UL Listed status also facilitates vendor approvals, warranty validation, and consistent regional applicability across panels and machines using Series G MCCBs.
Maintenance benefits stem from precise protection that reduces nuisance trips, extended equipment life, and faster fault isolation. The Digitrip electronic LS trip enhances reliability, while the LG-frame Series G design supports modular upgrades and easier replacement. The one-year warranty and Eaton support network further reduce risk, enabling predictable maintenance costs and improved plant uptime, leading to a favorable return on investment through higher productivity and lower outage costs.