Eaton LGX4320AAG Molded Case Circuit Breaker - UL Listed
Part Number: LGX4320AAG
Quick Summary
The Eaton LGX4320AAG molded case circuit breaker protects motor and power circuits in industrial control panels. Sourcing a reliable device that delivers precise trip coordination while meeting both IEC market needs and UL requirements can be challenging. This LG-series breaker provides UL Listed protection and HACR-rated performance with adjustable thermal and magnetic trips for flexible coordination across diverse loads. For procurement and maintenance teams, the 320 A rating, four-pole configuration, line-and-load terminals, and metric mounting support compact, compliant panel designs while reducing integration time and lifecycle costs.
Product Information
Extended Description
LGX4320AAG Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Complete breaker, Adjustable thermal, adjustable magnetic trip, Four-pole, 320A, 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
LGX4320AAG
UPC
786685183589
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
320 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 Multi-Wire Terminals for Molded Case Circuit Breakers
Application of Multi-Wire Terminals for Molded Case Circuit Breakers
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 - LGX4320AAG
Eaton Specification Sheet - LGX4320AAG
Eaton Specification Sheet - LGX4320AAG
Adjustable thermal and magnetic trip units deliver precise coordination between devices in complex motor loads. Business impact: tighter overload protection reduces nuisance trips and downstream equipment wear, lowering downtime and service costs. Application: ideal for mixed-load panels where peak currents vary and IEC-style trip characteristics are required. High amperage rating and high interrupt capacity let the LGX4320AAG clear faults quickly, improving system reliability and reducing unplanned downtime in critical power feeds. The four-pole LG frame enables accurate phase coordination and easier installation in multi-source panels, reducing wiring complexity and improving protective scheme clarity. Line and load terminals with metric mounting simplify setup, enable compact panel densities, and support rapid field retrofits with common hardware. UL Listed and HACR-rated capabilities provide regulatory alignment for HVAC and motor-control applications, while 50/60 Hz compatibility ensures steady performance across global sites, delivering measurable operational savings over time.
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FAQs
Install the LGX4320AAG using metric mounting hardware, with line and load terminals clearly identified for four-pole operation. Ensure conductors are sized for 320 A and torque values comply with OEM guidelines. Confirm supply frequency is 50/60 Hz and set the trip units to match your load profile to achieve proper coordination and protection.
The device features adjustable thermal and magnetic trip units with a 320 A rating. It provides an interrupt rating of 200 kAIC at 240/480 Vac and 65 kAIC at 600 Vac, suitable for high-energy applications. The unit supports 50/60 Hz operation, enabling flexible use across global installations with 80% rated performance.
Yes. The LGX4320AAG is designed for IEC-style coordination with adjustable trip units and metric mounting, while remaining UL Listed for broader compliance. Its four-pole LG frame and line/load terminals suit motor control centers and control panels in industrial environments, supporting reliable protection in mixed-load applications.
LGX4320AAG carries UL Listed certification and HACR-rated performance, aligning with common building automation and HVAC motor control requirements. Its 50/60 Hz compatibility supports global deployments, and the device’s Series G, LG frame design is optimized for standardized protection schemes in industrial panels.
Eaton’s warranty for this product follows policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. Eaton also provides access to service centers and support resources to facilitate parts, commissioning assistance, and field service planning, aiding maintenance and lifecycle cost management.