Eaton LGS3320AAG Molded Case Circuit Breaker - UL Listed
Part Number: LGS3320AAG
Quick Summary
LGS3320AAG is a molded case circuit breaker designed for reliable protection in industrial control panels. This LG-frame device uses adjustable thermal and magnetic trip to tailor protection for varying loads, reducing nuisance trips and improve uptime. UL Listed and HACR rated, it also aligns with IEC market expectations, with metric mounting and line/load terminals for straightforward installation. For engineers and procurement teams, the combination of robust interrupt ratings and a compact footprint translates to safer, more maintainable power distribution, while preserving panel space and simplifying commissioning.
Product Information
Extended Description
LGS3320AAG Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Adjustable thermal, adjustable magnetic trip, Three-pole, 320A, 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
LGS3320AAG
UPC
782116120482
Product Length/Depth
4.09 in
Product Height
5.48 in
Product Width
5.48 in
Product Weight
16 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
25 kAIC at 600 Vac 50 kAIC at 480 Vac 85 kAIC at 240 Vac
Number of poles
Three-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 - LGS3320AAG
Eaton Specification Sheet - LGS3320AAG
Eaton Specification Sheet - LGS3320AAG
Feature LG-frame complete LG breaker with three poles and 320 A rating → Business Impact aligns protection with high-current distribution needs, enabling reliable motor and control panel protection while minimizing voltage drop and heat in space-constrained installations. Application ideal for industrial control panels and OEM panel builders, supporting scalable protection strategies. Feature Adjustable thermal and magnetic trip → Business Impact delivers precise coordination and selectivity, reducing nuisance trips and enabling tailored protection curves for diverse loads. Application IEC markets and equipment with dynamic startup currents benefit from predictable protection. Feature High interrupt ratings of 85 kAIC at 240 VAC, 50 kAIC at 480 VAC, and 25 kAIC at 600 VAC → Business Impact ensures robust fault-current handling across common industrial voltages, reducing downstream damage and downtime. Application suitable for heavy machinery, press lines, and power distribution blocks. Feature Line and load terminals with metric mounting → Business Impact simplifies wiring, speeds installation, and improves reliability in panel assembly. Application ideal for panel builders and system integrators seeking plug-and-play protection. Feature 50/60 Hz operation and 80% rated → Business Impact supports compatibility with global electrical systems while maintaining safe, predictable performance. Application across mixed-voltage facilities with standardized protection strategies. Feature UL Listed and HACR rated; Series G design → Business Impact provides regulatory compliance and trusted protection characteristics, helping qualification trials and maintenance planning. Application across IEC markets and multinational deployments with consistent protection performance.
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FAQs
Yes. The LGS3320AAG is an LG-frame, three-pole complete breaker designed for metric mounting hardware. It uses line and load terminals for straightforward wiring, making it compatible with standard LG-frame panels and OEM enclosures. Proper panel layout and adherence to the 50/60 Hz electrical system will ensure seamless installation and reliable protection.
The unit provides 85 kAIC at 240 VAC, 50 kAIC at 480 VAC, and 25 kAIC at 600 VAC. It features adjustable thermal and magnetic trip, enabling precise coordination and selective protection. With 320 A amperage rating and a three-pole configuration, it is suitable for demanding industrial loads while maintaining safe operation at 50/60 Hz.
Ideal for industrial control panels, motor feeders, and power distribution blocks. Its Series G LG-frame design and adjustable trip provide tailored protection for IEC markets, enabling reliable control of heavy machinery and line-side protection. The device supports scalable protection architectures and helps minimize downtime by preventing cascading faults in critical equipment.
The LGS3320AAG is UL Listed and HACR rated, aligning with common U.S. safety standards and HVAC-related applications. While designed for IEC markets, note that certain adjustable-trip units may be specified for IEC use; always verify regional listing requirements and panel approvals to ensure full regulatory compliance in your facility.
With a 320 A rating, solid interrupt capability, and precise adjustable trip characteristics, this breaker reduces nuisance trips and improves protect-and-go maintenance cycles. The UL listing and robust LG-frame design simplify spares management, while metric mounting and line/load terminals speed commissioning, contributing to lower total cost of ownership over the life of the panel.