Eaton JGU8125AAG Complete MCCB - UL Listed 600 Vac
Part Number: JGU8125AAG
Quick Summary
Eaton Series G molded case circuit breaker delivers reliable protection for electrical distributions in industrial facilities. This unit simplifies protection coordination and enhances panel reliability, reducing nuisance trips during machine startup. It’s CSA Certified, UL Listed, and IEC Rated, providing confidence across North American and international installations. With 125 A capacity and a 600 Vac rating, it supports compact, scalable power distribution. Designed for four-pole configurations, adjustable thermal and magnetic trips, and metric mounting, it integrates smoothly into modern control panels while delivering consistent performance with Series G accessories and plug-in options.
Product Information
Extended Description
JGU8125AAG Eaton: Eaton Series G molded case circuit breaker, JG-frame, JG, Adjustable thermal, adjustable magnetic trip, Four-pole, 125A, 600 Vac, 200 kAIC at 240 Vac, 150 kAIC at 415 Vac, 150 kAIC at 480 Vac, 50 kAIC at 600 Vac, Line and load, Metric
Product Name
Eaton Series G complete molded case circuit breaker
Catalog Number
JGU8125AAG
UPC
786685127422
Product Length/Depth
3.57 in
Product Height
5.34 in
Product Width
5.34 in
Product Weight
8 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 UL Listed 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
Terminals
Line and load
Frame
JG
Mounting hardware
Metric
Interrupt rating
50 kAIC at 600 Vac 200 kAIC at 240 Vac 150 kAIC at 480 Vac 150 kAIC at 415 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 - JGU8125AAG
Eaton Specification Sheet - JGU8125AAG
Eaton Specification Sheet - JGU8125AAG
Feature: 125 A, 600 Vac rating in a four-pole JG frame complete MCCB. Business Impact: enables precise overcurrent protection for three-phase power distribution, reducing risk of equipment damage and downtime. Application: panelboards and motor control centers in manufacturing environments. Feature: Adjustable thermal and magnetic trip. Business Impact: allows fine-tuning the trip curve to match motor inrush and process loads. Application: equipment startup sequencing and critical process lines. Feature: High interrupt ratings — 50 kAIC at 600 Vac, 200 kAIC at 240 Vac, 150 kAIC at 415/480 Vac. Business Impact: improved fault-current clearing and coordination with upstream protection. Application: feeders from main service to subpanels. Feature: Line and load terminals with metric mounting hardware. Business Impact: simplifies field installation and future upgrades with standard hardware. Application: retrofit and new builds. Feature: Certifications and warranty. Business Impact: ensures regulatory compliance and reduces ownership risk. Application: international projects and long-term maintenance.
Get a Quick Quote for a Eaton JGU8125AAG
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton JGU8125AAG?
Enquire Now
FAQs
Yes. The JGU8125AAG uses the JG frame with metric mounting hardware, designed to integrate with Eaton Series G accessories such as operating handles, plug-in adapters, and lugs. When planning panel upgrades, verify mounting dimensions, rail compatibility, and accessory availability to ensure a seamless retrofit or new-build installation. This reduces field rework and accelerates commissioning.
The device is a 125 A, 600 Vac molded case circuit breaker with four poles and adjustable thermal and magnetic trips. It provides interrupt ratings of 50 kAIC at 600 Vac, 200 kAIC at 240 Vac, and 150 kAIC at 415/480 Vac, enabling precise protection coordination for motor loads, feeders, and critical circuits while accommodating starting surges.
Yes. Its four-pole construction, adjustable trip, and 125 A/600 Vac rating align with MCC requirements. The device supports panelboard integration and works with Series G accessories to optimize selective coordination in MCCs, reducing nuisance trips during startup and improving overall plant uptime.
This Eaton MCCB is UL Listed, CSA Certified, and IEC Rated, with CE Marking. These certifications ensure compliance with US, Canadian, and international electrical safety standards, facilitating cross-border projects and helping meet regulatory procurement criteria for global installations.
The unit ships with Eaton’s warranty policy (one year from installation or 18 months from shipment). Routine maintenance focuses on visual inspection, torque checks on mounting hardware, and ensuring trip settings remain within spec. Availability of Eaton service centers and replacement parts supports long-term ROI, reduced downtime, and predictable lifecycle costs.