Eaton LGS340033G Molded Case Breaker - UL Listed

Part Number: LGS340033G
LGS340033G
Manufacturer
Eaton
Part number
LGS340033G
Category

Quick Summary

Eaton LGS340033G molded case breaker provides reliable overcurrent protection for LG-frame switchgear in industrial power distribution. Engineers often struggle to balance interrupting capability, selective protection, and space constraints within control panels. This unit is UL Listed, CSA Certified, and CE marked, ensuring regulatory compliance across global installations. As part of Eaton’s Series G MCCB family, it supports MOEM MCCB product selection and delivers dependable protection for motor control centers and control panels, helping optimize uptime, maintenance planning, and overall lifecycle costs.

Product Information

Extended Description

LGS340033G Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Digitrip 310 RMS, Electronic LS 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
LGS340033G
UPC
782116994366
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
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
25 kAIC at 600 Vac 50 kAIC at 480 Vac 85 kAIC at 240 Vac
Number of poles
Three-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: LG-frame, complete molded case breaker with Digitrip 310 RMS electronic LS trip, three-pole construction, and 400 A rating. Business Impact: precise protection reduces nuisance trips and enables better selective coordination in complex power circuits. Application: ideal for control panels, machinery, and MCCs in manufacturing environments requiring robust, fast response to faults. The result is improved equipment longevity and safer maintenance routines. Feature: High interrupt ratings up to 85 kAIC at 240 Vac, 50 kAIC at 480 Vac, and 25 kAIC at 600 Vac. Business Impact: superior fault-current withstand enhances system resilience and helps meet NEC/IEC fault-current requirements. Application: suitable for medium- and high-load panels, machine centers, and industrial feeders where fault currents vary by service. This translates to reduced damage and faster restoration. Feature: HACR-rated performance with CE Mark, UL Listed, and CSA Certified compliance. Business Impact: simplifies regulatory approvals and intercompany procurement, reducing project risk and commissioning time. Application: worldwide installations where regulatory alignment is non-negotiable, including multi-site deployments. Feature: Metric mounting hardware and line/load terminals. Business Impact: simplifies installation, ensures reliable terminations, and supports compact panel layouts. Application: convenient in retrofit projects and new builds with standardized metric hardware. Feature: 50/60 Hz operation, 4.09 in depth, 5.48 in height and width, weight 15.3 lb. Business Impact: predictable footprint and weight streamline panel design, shipping, and handling. Application: suitable for tight spaces in control cabinets and distributed panels where space is at a premium. Feature: 80% rated, 400 A continuous operation with 3-pole configuration and LG frame compatibility. Business Impact: optimized thermal performance and efficiency in continuous duty applications, lowering energy waste and facilitating easier coordination studies. Application: motor control centers, machine control panels, and process automation cabinets needing dependable protection with manageable heat rise.

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FAQs

The LGS340033G is designed for LG-frame assemblies and uses metric mounting hardware for straightforward installation in existing or new panels. It features line and load terminals for clean, robust terminations and is compatible with standard MCCB mounting patterns in Series G configurations. Always verify clearance and torque specs per Eaton's installation guidelines to ensure optimal protection and thermal performance.
This unit is a three-pole, 400 A molded case breaker with Digitrip 310 RMS electronic trip. It provides 85 kAIC at 240 Vac, 50 kAIC at 480 Vac, and 25 kAIC at 600 Vac, across 50/60 Hz. It is 80% rated and HACR capable, delivering reliable protection for motors and loads while meeting performance standards.
LGS340033G excels in motor control centers, machine control panels, and general power distribution blocks within manufacturing, process automation, and water/wastewater facilities. Its 400 A capacity, high interrupt ratings, and precise electronic trip enable selective coordination, reduced nuisance trips, and safer, more maintainable control systems.
The breaker is UL Listed, CSA Certified, and CE Marked, with HACR ratings noted in catalog notes. These certifications support global deployments, streamline regulatory approvals, and help ensure safe, compliant operation in diverse environments.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. Support resources include application notes, product selection guides, and service centers referenced in Eaton's MCCB literature, helping optimize maintenance planning and total cost of ownership.