Eaton JGS3125FAWZ2 Molded Case Circuit Breaker - UL Listed

Part Number: JGS3125FAWZ2
Manufacturer
Eaton
Part number
JGS3125FAWZ2

Quick Summary

Eaton JGS3125FAWZ2 Molded Case Circuit Breaker protects industrial panels by interrupting fault currents. This model reduces nuisance trips and miscoordination with a fixed thermal trip and adjustable magnetic trip, delivering precise protection where it matters most. It carries CSA Certified, IEC Rated, and UL Listed marks, with CE compliance for global installations. Designed for 125 A at 600 Vac with optional line/load terminals, Series G delivers reliable, scalable protection for control panels. In planning, its 3-pole configuration and 50/60 Hz compatibility align with modern industrial power architectures, supporting efficient protection strategies. Together, these features translate to reduced downtime, easier maintenance, and stronger regulatory alignment across facilities.

Product Information

Extended Description

JGS3125FAWZ2 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, No terminals, optional line and load, 50/60 Hz
Product Name
Eaton Series G complete molded case circuit breaker
Catalog Number
JGS3125FAWZ2
UPC
786685416069
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
Catalog Notes
Reference Catalog # TA250FJ for Optional Line and Load Terminals
Type
Complete breaker
Amperage Rating
125 A
Voltage rating
600 Vac
Trip Type
T185
Circuit breaker type
JG
Circuit breaker frame type
Complete breaker
Series
Series G
Terminals
Without terminals, optional line and load
Frame
JG
Frequency rating
50/60 Hz
Interrupt rating
18 kAIC at 600 Vac 85 kAIC at 240 Vac 35 kAIC at 480 Vac
Number of poles
Three-pole
Amperage rating of 125 A provides robust feeder protection for mid-size loads, limiting conductor heating and enabling safer motor control in panelboards. This translates to fewer trip-induced outages and lower replacement costs, particularly in line-fed machines and presses. Voltage rating of 600 Vac supports high-energy industrial environments, allowing a single protective device to cover diverse drive and control circuits with confidence. The fixed thermal trip combined with an adjustable magnetic trip offers selective coordination, reducing unnecessary outages while ensuring fast fault clearance for high-energy faults. The JG frame in Series G is engineered for compact, plug-and-play integration in existing switchgear and control panels, with 50/60 Hz compatibility that mirrors global plant power. The option to use line/load terminals provides installation flexibility, enabling clean terminations and easier field wiring. Certifications including CSA, UL, IEC, and CE support global compliance and rapid project approvals. Interruption ratings of up to 18 kAIC at 600 Vac and higher ratings at lower voltages ensure reliable protection for motors and feeders under fault conditions. The three-pole design supports balanced phase protection, improving system reliability in panel boards, motor control centers, and machine rooms. The absence of terminals by default, with optional terminals, reduces inventory complexity while enabling tailored field configurations. This combination of robustness, configurability, and standards compliance helps OEMs and maintenance teams reduce spare parts, shorten commissioning cycles, and strengthen uptime commitments.

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FAQs

Yes. The JGS3125FAWZ2 is specified as a complete three-pole breaker with no terminals by default, and catalog notes reference optional line and load terminals (TA250FJ). When planning a retrofit or panel expansion, verify the terminal kit compatibility with Eaton catalogs and ensure the line/load terminations are rated for 600 Vac and the installed conductor sizes. This flexibility simplifies field wiring and reduces the need for full panel rewiring.
Key specs include a 125 A amperage rating, 600 Vac voltage rating, and a trip type of T185 with an 18 kAIC interrupt rating at 600 Vac (higher ratings at lower voltages: 85 kAIC at 240 Vac, 35 kAIC at 480 Vac). The unit is a three-pole JG frame, Series G, operating at 50/60 Hz. These figures define protection boundaries for feeders, motors, and control circuits in typical industrial installations.
Yes. The JGS3125FAWZ2 is designed for 50/60 Hz systems and uses a JG frame described as a Series G complete breaker. This framing supports compact integration in standard MCCs and panel boards while maintaining reliable protection performance across both 50 Hz and 60 Hz environments.
The product carries CSA Certified, IEC Rated, UL Listed certifications and CE Marked compliance. These marks demonstrate adherence to recognized international standards, easing regulatory approvals, performance verification, and supplier qualification during audits. They also facilitate cross-border project deployment and reduce risk related to non-compliant equipment.
From a maintenance perspective, the fixed thermal and adjustable magnetic trip provide predictable protection, reducing nuisance trips and extending equipment life. The three-pole design improves coordination and reduces downtime during fault events. While initial costs may be higher than simpler devices, the long-term ROI comes from lower downtime, fewer spare parts, and quicker commissioning across multiple lines in panels, MCCs, and control cabinets.