Eaton JGSDC3100FAW PV Guard Solar MCCB - UL 489
Part Number: JGSDC3100FAW
Quick Summary
Eaton PV Guard Solar MCCB is a complete molded case circuit breaker for photovoltaic systems and solar arrays, engineered to protect DC and AC portions of modern PV plants. Installers and OEMs frequently confront unreliable DC protection, nuisance trips, and tight panel spaces that complicate wiring and service. UL 489 certification ensures safety compliance while the device supports 50/60 Hz operation and ratings of 600 Vac / 250 Vdc for mixed-voltage protection in one package. With a three-pole JG frame and fixed thermal with adjustable magnetic trip, this breaker simplifies panel design, reduces installation time, and lowers maintenance and replacement costs in commercial and utility-scale solar projects. The compact 3.44 in depth, 7 in height, and 4.13 in width fit standard MCCB enclosures while delivering 100 A protection for PV arrays and inverters.
Product Information
Extended Description
JGSDC3100FAW Eaton: Eaton Series G DC/PvGard complete molded case circuit breaker, JG-frame, JG, Fixed thermal, adjustable magnetic trip, Three-pole, 100A, 600 Vac, 250 Vdc, 85 kAIC at 240 Vac, 35 kAIC at 480 Vac, 18 kAIC at 600 Vac, No terminals, 50/60 Hz
Product Name
Eaton PV Guard / Solar complete molded case circuit breaker
Catalog Number
JGSDC3100FAW
UPC
786685494319
Product Length/Depth
3.44 in
Product Height
7 in
Product Width
4.13 in
Product Weight
6.5 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 489
Amperage Rating
100 A
Voltage rating
600 Vac, 250 Vdc
Trip Type
T185
Circuit breaker type
JG
Circuit breaker frame type
Complete breaker
Series
Series G
Terminals
Without terminals
Frame
JG
Frequency rating
50/60 Hz
Interrupt rating
35 kAIC at 480 Vac 85 kAIC at 240 Vac 18 kAIC at 600 Vac
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 - JGSDC3100FAW
Eaton Specification Sheet - JGSDC3100FAW
Feature: Three-pole JG frame with fixed thermal and adjustable magnetic trip → Business Impact: Provides precise, reliable protection with selectable magnetic trip settings to minimize nuisance trips and arc risk → Application: Protects PV strings and DC feeders in commercial and utility-scale solar installations. Feature: Without terminals → Business Impact: Installation flexibility enables clean, fast wiring and easy field modification in existing panels or custom enclosures → Application: Panel builders and integrators can streamline retrofits and new builds without terminal additions. Feature: 100 A amperage rating → Business Impact: Aligns with common PV array protection needs, reducing the number of devices and simplifying protection schemes → Application: Main protection in PV combiner boxes and feeder sections. Feature: 50/60 Hz frequency rating with 600 Vac / 250 Vdc ratings → Business Impact: One device handles both AC and DC protection, cutting inventory and improving compatibility → Application: Mixed-voltage PV systems and hybrid inverters. Feature: Interrupt ratings of 35 kAIC at 480 Vac, 85 kAIC at 240 Vac, 18 kAIC at 600 Vac → Business Impact: High fault current resilience reduces downtime and equipment damage → Application: Utility-scale PV farms and large commercial PV installations. Feature: UL 489 certification and 25-000 warranty terms → Business Impact: Demonstrates compliance with recognized safety standards and predictable service coverage → Application: Compliance-driven procurement and service planning for critical solar infrastructure.
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FAQs
The JGSDC3100FAW uses a standard three-pole JG frame designed for integration in MCCB panels; it ships without terminals, allowing you to connect bus bars or pre-wired harnesses directly in compatible enclosures. This arrangement offers installation flexibility in space-constrained PV combiner boxes and service panels while maintaining secure terminations and reliable fault protection.
Key specifications include 100 A amperage rating, 600 Vac / 250 Vdc voltage ratings, 50/60 Hz frequency rating, and Trip Type T185. Interrupt ratings are 35 kAIC at 480 Vac, 85 kAIC at 240 Vac, and 18 kAIC at 600 Vac. It is a three-pole JG frame device suitable for mixed AC/DC PV protection applications.
Yes. Designed specifically for PV guard solar use, it provides DC protection on the PV side with a 250 Vdc rating and robust AC protection up to 600 Vac. The fixed thermal, adjustable magnetic trip combination ensures reliable DC fault clearance, reducing the risk of arc faults and equipment damage in PV arrays and inverters.
The JGSDC3100FAW carries UL 489 certification, a recognized standard for molded case circuit breakers. This certification confirms safety and performance compliance for electrical protection devices used in distribution panels and PV installations, helping with procurement approvals and installation code adherence.
The product falls under Eaton’s warranty policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. Regular inspection of the trip settings and periodic thermal-magnetic testing per site maintenance schedules will help ensure continued reliability and minimize unexpected outages in solar projects.