Eaton JGX3125AAG Complete MCCB - UL Listed, 200 kAIC
Part Number: JGX3125AAG
Quick Summary
Eaton JGX3125AAG Complete MCCB provides reliable overcurrent protection for motor control centers. Too often, assemblies suffer nuisance trips or poor selectivity when trip settings aren’t aligned to load profiles. This unit is UL Listed, CSA Certified, and IEC Rated, ensuring regulatory compliance and dependable protection across global panels. With adjustable thermal and magnetic trip, it adapts to 125 A at 600 Vac and supports 50/60 Hz systems, reducing downtime and extending equipment life. Built on the Series G molded case platform, it streamlines installation in panel boards with line and load terminals and metric mounting hardware, delivering safer operation and long-term cost savings for OEMs and plant engineers.
Product Information
Extended Description
JGX3125AAG Eaton: Eaton Series G molded case circuit breaker, JG-frame, JG, Adjustable thermal, adjustable magnetic trip, Three-pole, 125A, 600 Vac, 200 kAIC at 240 Vac, 200 kAIC at 480 Vac, 50 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
JGX3125AAG
UPC
786685126876
Product Length/Depth
3.57 in
Product Height
4.13 in
Product Width
4.13 in
Product Weight
6 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
UL Listed CSA Certified IEC Rated
Type
Complete breaker
Amperage Rating
125 A
Voltage rating
600 Vac
Trip Type
Adjustable thermal, adjustable magnetic
Circuit breaker type
JG
Circuit breaker frame type
Complete breaker
Rating
80% rated
Series
Series G
Terminals
Line and load
Frame
JG
Frequency rating
50/60 Hz
Mounting hardware
Metric
Interrupt rating
200 kAIC at 480 Vac 50 kAIC at 600 Vac 200 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
NG and ND-Frame molded case circuit breakers
NG and ND-Frame molded case circuit breakers
NG and ND-Frame molded case circuit breakers
Feature → Business Impact → Application: Adjustable thermal and magnetic trip enables precise coordination to prevent nuisance trips while protecting equipment; this reduces unplanned downtime and extends motor and line life in automated production lines and packaging facilities. Application: motor control centers and switchgear panels that demand reliable protection with configurable trip curves. Feature → Business Impact → Application: Three-pole design with line and load terminals and metric mounting hardware simplifies field installation and panel integration; installers save time and reduce wiring errors in high-density control panels. Application: OEM panel assemblies and retrofit projects in plants upgrading legacy MCCBs. Feature → Business Impact → Application: High interrupt rating (200 kAIC at 240/480 Vac, 50 kAIC at 600 Vac) provides robust short-circuit protection in demanding environments; systems stay online during faults, minimizing production losses. Application: heavy machinery, conveyors, and water/chemical processing lines. Feature → Business Impact → Application: Series G, JG frame with 50/60 Hz compatibility ensures standardization across equipment fleets; engineers can leverage existing tooling and enclosures for faster commissioning. Application: multi-region manufacturing sites requiring consistent protection. Feature → Business Impact → Application: CE Marking along with UL Listed, CSA Certified, IEC Rated certifications assure compliance and acceptance in global supply chains; procurement teams mitigate regulatory risk. Application: global installations across automotive, food & beverage, and energy sectors.
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FAQs
To install the JGX3125AAG, align the JG frame with the standard metric mounting hardware and secure the breaker in the panel. Connect line and load terminals per the panel schematic, verify 125 A rating, and set the adjustable thermal and magnetic trip to the appropriate protection level for the motor load. Confirm 50/60 Hz compatibility and perform a functional test after mounting.
Key specs include a 125 A ampere rating, 600 Vac voltage rating, and adjustable thermal/magnetic trip for precise protection. The interrupt rating is 200 kAIC at 240 and 480 Vac and 50 kAIC at 600 Vac. The device is a three-pole JG frame with line and load terminals operating at 50/60 Hz and 80% rated.
Yes. Built on Eaton's Series G JC/JG framework, it provides robust protection with adjustable trip settings suitable for motors and drives. Its 125 A rating and high interrupt capacity enable reliable operation in demanding lines, while UL Listed, CSA Certified, and IEC Rated credentials support compliance across harsh industrial environments.
The JGX3125AAG carries UL Listed, CSA Certified, and IEC Rated certifications. These marks confirm adherence to North American and international safety standards, facilitate cross-border approvals, and help buyers meet regulatory requirements in diverse markets while ensuring product reliability and risk mitigation in critical electrical protection tasks.
The adjustable trip reduces nuisance trips and improves protection selectivity, lowering unplanned downtime. Its durable Series G/JG design simplifies stocking and service, lowering maintenance cost and future retrofit effort. Over time, the result is improved equipment uptime, extended motor life, and a measurable return on investment through reduced downtime and safer operation.