Eaton JGS3125FAGC Complete MCCB - UL Listed, 125 A, 600 Vac
Part Number: JGS3125FAGC
Quick Summary
Eaton JGS3125FAGC complete molded case circuit breaker provides robust three‑phase protection for industrial control panels and power distribution. It addresses the common pain of nuisance trips and unpredictable short-circuit events with a fixed thermal trip and adjustable magnetic trip that support selective coordination. This unit is IEC rated, UL Listed and CSA certified, meeting global safety and performance benchmarks. Designed for Series G applications, it delivers reliable uptime in demanding environments while offering straightforward installation and maintenance. By combining 125 A capacity at 600 Vac with metric mounting hardware, this MCCB helps control panels stay compliant and productive, reducing downtime and total cost of ownership.
Product Information
Extended Description
JGS3125FAGC Eaton: Eaton Series G molded case circuit breaker, JG-frame, JG, Fixed thermal, adjustable magnetic trip, Three-pole, 125A, 600 Vac, 85 kAIC at 240 Vac, 35 kAIC at 480 Vac, 18 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
JGS3125FAGC
UPC
786685290911
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
IEC Rated UL Listed CSA Certified
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
85 kAIC at 240 Vac 18 kAIC at 600 Vac 35 kAIC at 480 Vac
Number of poles
Three-pole
Application of Tap Rules to Molded Case Breaker Terminals
Application of Tap Rules to Molded Case Breaker Terminals
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: The JG frame with fixed thermal; adjustable magnetic trip delivers precise protection against overloads and short circuits, reducing spurious trips and equipment damage in high‑inertia loads such as motors. This translates to fewer production stoppages and lower maintenance costs in manufacturing lines using Series G breakers. Application: control panels in automotive, metalworking, and packaging lines seeking reliable protection with easy replacement in existing JG frames. Feature → Business Impact → Application: Three‑pole construction with line and load terminals and metric mounting hardware ensures simple integration into compact electrical cabinets, speeding up installation and improving traceability in panel assemblies. Application: new builds and retrofit projects in industrial facilities with strict space constraints. Feature → Business Impact → Application: 125 A rating and 600 Vac voltage rating provide scalable protection for mid‑size motor drives and feeders, supporting energy efficiency initiatives and safer shutdowns. Application: machine centers and process lines requiring consistent protection across multiple feeders. Feature → Business Impact → Application: 85 kAIC at 240 Vac, 18 kAIC at 600 Vac, 35 kAIC at 480 Vac interrupt ratings deliver withstand capability for a wide set of short‑circuit scenarios, helping facilities stay compliant with electrical safety standards. Application: high‑fault‑current environments in steel mills and heavy manufacturing. Feature → Business Impact → Application: CE Mark, UL Listed, and CSA Certified align with global procurement requirements, simplifying supplier qualification and regulatory compliance. Application: multinational OEMs and global service providers deploying MCCBs across sites.
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FAQs
The JGS3125FAGC uses metric mounting hardware designed for Series G molded case breakers, with line and load terminals that align with standard panel forms. This enables straightforward retrofits into existing cabinets and compatible enclosures, reducing installation time and minimizing cabinet rework.
This breaker is rated at 125 A and 600 Vac, with a fixed thermal trip and adjustable magnetic trip (T185). Interrupt ratings are 85 kAIC at 240 Vac, 35 kAIC at 480 Vac, and 18 kAIC at 600 Vac, providing robust short‑circuit protection across operating conditions.
Yes. The breaker is IEC rated, UL Listed, and CSA Certified, and CE marked, which supports global procurement and compliance programs. This combination simplifies validation for multinational installations and supplier qualification.
Best suited for three‑pole protection in industrial control panels, motor feeders, and machinery power distribution. Its 125 A rating at 600 Vac and compatible Series G frame make it a reliable choice for mid‑sized panels, machine centers, and process lines where uptime and selective coordination matter.
Eaton provides a one‑year warranty from installation or eighteen months from shipment, whichever occurs first, under policy 25‑000. This covers manufacturing defects and supports service continuity in the field with access to Eaton technical resources.