Eaton JGPVS3125W PV Guard Solar MCCB - UL Listed
Part Number: JGPVS3125W
Quick Summary
Eaton PV Guard JGPVS3125W is a solar-ready molded case circuit breaker for PV systems. This device provides robust DC protection in outdoor solar installations and simplifies integration with existing electrical protection schemes. Engineers face challenges from harsh environmental conditions, dust, heat, and the need for reliable trip performance; this unit addresses those concerns with a fixed thermal and fixed magnetic trip. It carries UL Listed certification and Photovoltaic-class protection, and supports up to 600 Vdc in a three-pole configuration. By combining a complete breaker with a compact JG frame, 125 A rating, and 1.2 kAIC interrupt rating, it delivers dependable protection, faster commissioning, and lower lifecycle costs for solar projects and microgrids.
Product Information
Extended Description
JGPVS3125W Eaton: Eaton PV Guard / Solar complete molded case circuit breaker, JG-frame, JG, Complete breaker, Fixed thermal, fixed magnetic trip type, Three-pole, 125A, 600 Vdc, 1.2 kAIC, Without terminals, Photo voltaic, 80% rated
Product Name
Eaton PV Guard / Solar complete molded case circuit breaker
Catalog Number
JGPVS3125W
UPC
786685879116
Product Length/Depth
3.57 in
Product Height
4.13 in
Product Width
4.13 in
Product Weight
6.6 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.
Certifications
UL Listed
Catalog Notes
Terminals not included with frames.
Amperage Rating
125 A
Voltage rating
600 Vdc
Trip Type
T186
Circuit breaker type
JG
Circuit breaker frame type
Complete breaker
Rating
80% rated
Terminals
Without terminals
Frame
JG
Class
Photovoltaic
Interrupt rating
1.2 kAIC
Number of poles
Three-pole
PVGard solar circuit breakers product aid
Circuit Protection, Molded Case Circuit Breakers, Volume 4, Tab 2
Value of Circuit Breakers for PV Systems and Eaton PVGard Solar Circuit Breakers
Eaton Specification Sheet - JGPVS3125W
Eaton Specification Sheet - JGPVS3125W
Feature → Business Impact → Application: PV Guard Solar complete molded case breaker provides a three-pole protection block rated at 125 A with a 600 Vdc capacity and 1.2 kAIC interrupt rating. This delivers reliable fault isolation in PV DC circuits, reducing downtime and equipment damage in outdoor solar installations. Application: PV arrays, DC feeders, and solar microgrids where space efficiency and dependable protection are critical. Feature → Business Impact → Application: Fixed thermal and fixed magnetic trip (T186) deliver precise protection and fewer nuisance trips, enhancing system uptime and module life. Application: Harsh outdoor environments and variable irradiance conditions. Feature → Business Impact → Application: UL Listed and Photovoltaic-class ratings simplify compliance and accelerate approvals, while a compact JG frame supports quick panel integration. Application: OEM panel boards and field-installed PV protection. Feature → Business Impact → Application: 80% rated performance and a complete breaker footprint enable streamlined installation in limited enclosures, reducing ballast in panel design. Application: Retail, commercial, and industrial PV protection projects.
Get a Quick Quote for a Eaton JGPVS3125W
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 JGPVS3125W?
Enquire Now
FAQs
Terminals are not included with frames, per catalog notes. When ordering, select compatible terminal kits or connectors to match the 125 A, 600 Vdc rating. Plan wiring to fit the three-pole configuration and ensure proper torque, insulation, and weatherproofing for outdoor PV installations. Verify conductor size and enclosure clearance during final fit.
It features a three-pole design rated for 125 A with a 600 Vdc voltage rating and a 1.2 kAIC interrupt rating. The trip mechanism is fixed thermal and fixed magnetic (T186), providing reliable overcurrent protection in PV DC circuits. The unit is 80% rated, which supports efficient panel loading while maintaining protection margins.
Yes. The PVGuard class and 600 Vdc rating make it ideal for PV arrays, DC feeders, and solar microgrids. The three-pole configuration provides balanced protection across phases, while UL Listed certification helps streamline compliance and installation in commercial and industrial solar projects.
The JGPVS3125W is UL Listed and classified as Photovoltaic protection equipment. It is designed for 600 Vdc operation, with a JG frame and 3-pole assembly. These certifications support safe operation in PV installations and simplify approvals for industrial and commercial solar projects.
Warranty aligns with Eaton policy 25-000: one year from installation or eighteen months from shipment, whichever comes first. Maintenance needs are minimal due to fixed thermal and magnetic trip design; periodic inspections of wiring and terminals (when installed) and verification of torque and clearances at installation are recommended.