Eaton LGHDC3500FAG PV Guard / Solar MCCB - UL 489
Part Number: LGHDC3500FAG
Quick Summary
Eaton PV Guard / Solar complete molded case circuit breaker protects solar power systems and PV wiring. Engineers often wrestle with matching overcurrent protection to DC PV environments, while ensuring fast, reliable field installs. This LG-frame LGHDC3500FAG delivers UL 489 listed protection with a 500 A rating, 65 kAIC interrupt at 600 Vac, and a three-pole configuration to simplify wiring and improve safety. The design emphasizes easy mounting with metric hardware and line-and-load terminals, helping procurement and maintenance teams cut installation time and reduce downtime while staying compliant with industry standards.
Product Information
Extended Description
LGHDC3500FAG Eaton: Eaton Series G DC/PvGard complete molded case circuit breaker, LG-frame, LG, Complete breaker, Fixed thermal, adjustable magnetic trip type, Three-pole, 500A, 600 Vac, 65 kAIC at 600 Vac, Line and load, Metric, Vdc
Product Name
Eaton PV Guard / Solar complete molded case circuit breaker
Catalog Number
LGHDC3500FAG
UPC
786685479750
Product Length/Depth
5.48 in
Product Height
5.48 in
Product Width
5.48 in
Product Weight
16 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
500 A
Voltage rating
600 Vac
Trip Type
T185
Circuit breaker type
LG
Circuit breaker frame type
Complete breaker
Terminals
Line and load
Frame
LG
Class
Vdc
Mounting hardware
Metric
Interrupt rating
65 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 - LGHDC3500FAG
Eaton Specification Sheet - LGHDC3500FAG
The LGHDC3500FAG uses an LG-frame, three-pole complete breaker design to support reliable PV protection with line and load terminations, enabling a compact, plug-and-play installation in LG-frame panels. This configuration reduces field wiring errors and accelerates commissioning in commercial and utility-scale solar projects. Trip technology combines fixed thermal with adjustable magnetic trip (T185), delivering precise overcurrent protection across mixed AC/DC conditions. This enables better selectivity and minimizes nuisance trips in PV strings, protecting modules and inverters during fault events. With a 65 kAIC interrupt rating at 600 Vac and a 500 A rating, the device safely clears high fault currents common in solar installations, safeguarding equipment and personnel. The UL 489 certification underpins compliance and reliability for audits and warranty programs while maintaining a compact footprint thanks to metric mounting hardware and a footprint suited for LG-frame installations. Maintenance and retrofit scenarios benefit from standardized line/load terminals and compatibility with Eaton PVGuard accessories, enabling faster upgrades and reduced downtime in busy electrical rooms.
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FAQs
LGHDC3500FAG uses a three-pole LG frame design with line and load terminations and metric mounting hardware, making it a straightforward fit for LG-frame MCCB panels and PV protection schemes. Its plug-and-play compatibility helps reduce field wiring errors during retrofit or new installation and aligns with standard Eaton PVGuard accessory kits.
Amperage rating is 500 A, voltage rating is 600 Vac, and the interrupt rating is 65 kAIC at 600 Vac. It is a three-pole device with a fixed thermal, adjustable magnetic trip (T185), suitable for protecting PV arrays and associated DC and AC switching components.
Yes. The LGHDC3500FAG is UL 489 listed, designed for DC PV environments, and features a Vdc class rating to ensure protection performance in solar applications. This makes it suitable for PV string protection and associated control circuits in commercial and utility-scale installations.
Warranty terms follow Eaton policy 25-000: one year from the date of installation or eighteen months from the date of shipment, whichever occurs first. This provides coverage for manufacturing defects and supports maintenance planning across project lifecycles.
By delivering reliable overcurrent protection with a high interrupt rating, straightforward installation, and UL 489 certification, the LGHDC3500FAG reduces downtime, minimizes nuisance trips, and shortens commissioning in PV projects. Its compact LG-frame design and metric mounting simplify retrofits and new builds, supporting lower lifetime operating costs and faster payback.