Eaton JGU3125FAG Complete MCCB - Series G UL Listed
Part Number: JGU3125FAGC
Quick Summary
Eaton Series G molded case circuit breaker protects electrical systems in control panels and motor circuits. Engineers often struggle to meet high fault currents while maintaining selective coordination and compact panel layout. Certified IEC Rated, CSA Certified, and UL Listed, it supports global compliance in industrial environments. With a 125 A rating in a JG frame and complete MCCB design, it scales from installation to service without compromising safety or uptime.
Product Information
Extended Description
JGU3125FAGC Eaton: Eaton Series G molded case circuit breaker, JG-frame, JG, Fixed thermal, adjustable magnetic trip, Three-pole, 125A, 600 Vac, 200 kAIC at 240 Vac, 150 kAIC at 480 Vac, 50 kAIC at 600 Vac, Line and load, Metric, 50/60 Hz, 100% rated
Product Name
Eaton Series G complete molded case circuit breaker
Catalog Number
JGU3125FAGC
UPC
786685581583
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
CSA Certified IEC Rated UL Listed
Type
Complete breaker
Amperage Rating
125 A
Voltage rating
600 Vac
Trip Type
T185
Circuit breaker type
JG
Circuit breaker frame type
Complete breaker
Rating
100% rated
Series
Series G
Terminals
Line and load
Frame
JG
Frequency rating
50/60 Hz
Mounting hardware
Metric
Interrupt rating
150 kAIC at 480 Vac 200 kAIC at 240 Vac 50 kAIC at 600 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
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: Three-pole JG frame with fixed thermal and adjustable magnetic trip enables precise protection curves, reducing nuisance trips and enabling reliable selective coordination in medium-to-large panels. Application: Control panels and motor drives in manufacturing lines. Feature → Business Impact → Application: 200 kAIC at 240 Vac, 150 kAIC at 480 Vac and 50 kAIC at 600 Vac interrupt ratings provide robust fault current handling, improving uptime and protecting expensive loads. Application: Industrial machinery and power distribution equipment. Feature → Business Impact → Application: Metric mounting hardware and line/load terminals simplify retrofits and new installations, shortening commissioning time. Application: Panel upgrades and new equipment builds. Feature → Business Impact → Application: 125 A rated, 600 Vac rated unit with Series G architecture supports scalable protection across machinery stacks, reducing long-term spare part and maintenance costs. Application: Packaging lines and process automation. Feature → Business Impact → Application: Comprehensive certifications (IEC Rated, CSA Certified, UL Listed) and documented warranty provide regulatory confidence and predictable support. Application: Global deployments in regulated industries and multi-site operations.
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FAQs
The JGU3125FAG uses the Series G JG frame with metric mounting hardware and line/load terminals, designed for easy integration into metric-panel cabinets. Ensure the panel bus bars are rated for 600 Vac, and tighten mounting screws to manufacturer torque specs. Its three-pole configuration aligns with standard industrial switchgear, reducing wiring complexity during retrofit.
Interrupt rating indicates the maximum fault current the breaker can interrupt without damage. For this model, 200 kAIC at 240 Vac means it can safely interrupt high fault currents at 240 Vac applications. It also provides 150 kAIC at 480 Vac and 50 kAIC at 600 Vac, giving flexibility for multi-voltage motor and distribution circuits while maintaining selectivity.
Yes, the JGU3125FAG is designed for three-pole protection in motor-driven lines and packaging equipment. With fixed thermal and adjustable magnetic trip, it supports selective coordination to prevent upstream trips and to isolate faults locally. For best results, coordinate with upstream protective devices and ensure the load profile matches the trip characteristics.
This breaker is IEC Rated, CSA Certified, and UL Listed, which means it meets international, North American, and agency-specific standards. These certifications simplify compliance for multi-site installations, support supplier qualification processes, and help ensure safety, reliability, and regulatory acceptance across diverse facilities.
Eaton’s policy provides a one-year warranty from installation or 18 months from shipment, whichever occurs first, and access to Eaton service centers. This reduces maintenance risk, supports faster parts replacement, and can lower life-cycle costs by minimizing downtime and repair expenses in critical manufacturing environments.