Eaton LGX4400AAG Molded Case Breaker - UL Listed
Part Number: LGX4400AAG
Quick Summary
The Eaton LGX4400AAG molded case breaker provides robust protection for industrial power distribution. Engineers often struggle to tailor protection without swapping components or sacrificing coordination. UL Listed and HACR-rated design supports compliance across markets, including IEC contexts, while the LG frame and metric mounting simplify installation. With an adjustable thermal/magnetic trip, this complete breaker helps achieve precise protection, improve panel performance, and reduce downtime in control rooms and automation panels. Rated for 50 to 60 Hz, it supports four poles and line/load terminations for seamless integration into modern power architectures.
Product Information
Extended Description
LGX4400AAG Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Complete breaker, Adjustable thermal, adjustable magnetic trip, 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
LGX4400AAG
UPC
786685183596
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.
Certifications
UL Listed
Catalog Notes
Adjustable thermal, adjustable magnetic trip units are typically used in IEC markets and are not UL or CSA listed, LG breaker is HACR rated
Type
Complete breaker
Amperage Rating
400 A
Trip Type
Adjustable thermal, adjustable magnetic
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
Breaker service centers
Circuit Protection, Molded Case Circuit Breakers, Volume 4, Tab 2
NG and ND-Frame molded case circuit breakers
NG and ND-Frame molded case circuit breakers
NG and ND-Frame molded case circuit breakers
The LGX4400AAG uses the four-pole LG frame to deliver a 400 A current rating and high interrupt capability, with 200 kAIC available at 240/480 Vac and 65 kAIC at 600 Vac. This translates to enhanced fault clearance, improved equipment protection, and reduced exposure to cascading outages in large machines and control panels. The adjustable thermal and magnetic trip units let you tailor protection to process needs and regional standards, delivering targeted coordination and fewer nuisance trips in IEC-based installations. With metric mounting hardware and line/load terminals, installation is straightforward, accelerating panel builds and minimizing commissioning timelines. The complete breaker design also supports straightforward replacement and service in existing Series G installations, preserving existing bus and lug configurations. Warranty terms provide ongoing support and predictable maintenance budgeting, reducing lifecycle costs and ensuring compliance with Eaton’s service policy.
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FAQs
LGX4400AAG uses the LG frame with metric mounting hardware and line/load terminals, designed for four-pole configurations up to 400 A. Its IEC-friendly mounting and lug patterns simplify panel integration, enabling fast replacement in control panels and distribution boards while ensuring reliable bus bar alignment and secure electrical connections.
The LGX4400AAG is a four-pole complete molded case breaker rated at 400 A with an interrupt rating of up to 200 kAIC at 240/480 Vac and 65 kAIC at 600 Vac. It operates at 50 to 60 Hz and uses adjustable thermal and magnetic trip units, offering precise fault protection and flexible coordination for diverse industrial applications.
Yes. The LGX4400AAG is designed for IEC-based installations with metric mounting compatibility, and its adjustable trip units support IEC protection schemes. While the unit is UL Listed and HACR rated, note that trip units intended for IEC markets may not be UL/CSA listed, so coordination with local standards and panel certification is advised.
LGX4400AAG is UL Listed and HACR rated, supporting broad market acceptance and equipment protection standards. Catalog notes indicate these adjustable trip units are common in IEC markets, emphasizing IEC compatibility. Review local compliance requirements to confirm applicability in your region, especially for control panels and multi-national installations.
Eaton provides a warranty per Selling Policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. This coverage supports after-sales service, parts availability, and replacement considerations, helping protect total cost of ownership and ensure prompt maintenance for critical power protection in automation environments.