Eaton LGX440033G Complete MCCB - UL Listed, 200 kAIC
Part Number: LGX440033G
Quick Summary
The Eaton LGX440033G complete molded case circuit breaker protects industrial electrical panels from overload and short-circuit conditions with precise, fast interruption. In modern projects, engineers and procurement teams struggle to achieve reliable protection coordination, minimize downtime, and simplify field diagnostics during commissioning and maintenance. It carries UL Listed, CSA Certified, and IEC Rated marks to meet global safety and performance expectations across harsh industrial environments. As part of the Series G LG-frame family, equipped with Digitrip 310 RMS electronic trip and four poles, this device supports scalable protection schemes and efficient spare-part management for control panels and switchgear assemblies.
Product Information
Extended Description
LGX440033G Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Complete breaker, Digitrip 310 RMS, Electronic LS trip type, Four-pole, 400A, 200 kAIC at 240/480 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
LGX440033G
UPC
786685183374
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
CSA Certified IEC Rated UL Listed
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
200 kAIC at 240/480 Vac 65 kAIC at 600 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
Eaton Specification Sheet - LGX440033G
Eaton Specification Sheet - LGX440033G
Eaton Specification Sheet - LGX440033G
Feature: 400 A ampacity with a four-pole LG frame. Business Impact: Enables protection of large feeders and complex distribution without compromising selectivity or fault clearance. Application: Industrial motor feeders and power distribution panels require robust protection at high currents. Feature: Digitrip 310 RMS electronic trip. Business Impact: Delivers accurate protection, reducing nuisance trips and enabling precise coordination with downstream devices. Application: Critical for machinery intervals and panel-wide protection schemes. Feature: 50/60 Hz operation with metric mounting hardware. Business Impact: Simplifies installation across global facilities and ensures compatibility with European and international panels. Application: New builds and retrofit projects that demand quick, reliable integration. Feature: Interrupt ratings up to 200 kAIC at 240/480 Vac and 65 kAIC at 600 Vac. Business Impact: Maximizes fault-clearing capability for high-energy systems, improving uptime and safety. Application: Heavy-duty machines, CNCs, and processing lines. Feature: Certifications and HACR rating. Business Impact: Ensures compliance with safety standards and reduces engineering verification time. Application: Systems deployed under UL, CSA, IEC requirements in diverse industries. Overall, these features contribute to lower lifecycle costs, easier maintenance, and greater peace of mind in mission-critical environments.
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FAQs
Yes. The LGX440033G is designed for LG-frame assemblies and uses metric mounting hardware for straightforward installation. It features line and load terminals and a four-pole configuration, supporting compatible busbar arrangements in Series G MCCBs. Verify panel cutouts, busbar spacing, and conductor sizing to ensure full coordination and safe clearance during maintenance.
The breaker is rated for 400 A with four poles and uses a Digitrip 310 RMS electronic trip. It offers an interrupt rating of 200 kAIC at 240/480 Vac and 65 kAIC at 600 Vac, operates at 50/60 Hz, and is 80% rated. These specs enable high-energy protection with reliable fault interruption and coordination with downstream devices.
Ideal for industrial control panels, motor control centers, and switchgear, the LGX440033G provides robust protection for large feeders and critical loads. It supports precise protection coordination and fast fault interruption, reducing downtime in manufacturing lines, processing equipment, and power distribution networks while enabling scalable protection schemes.
LGX440033G carries UL Listed, CSA Certified, and IEC Rated marks, with CE marking noted in the product specs. It is HACR rated and designed for compliance in global industrial environments, helping you meet regulatory requirements and simplify cross-border procurement and installation.
With a Digitrip 310 RMS electronic trip and Series G LG-frame design, expect enhanced reliability, reduced nuisance trips, and easier diagnostics. The 400 A rating supports large loads, while standard warranty (one year from installation or 18 months from shipment) and Eaton service centers help minimize total cost of ownership and downtime over the equipment lifecycle.