Eaton RGHDC3300FFWM PV Guard - 125 kAIC, 600 Vac

3000A amperage rating enables the breaker to handle large fault currents without nuisance trips, reducing unplanned outages in utility-scale PV farms. In practice, this translates to higher availability and smoother inverter protection coordination across multiple strings, supporting reliable grid integration in commercial and industrial installations. The rating also provides headroom for future capacity expansions within existing electrical rooms. 600 Vac / 250 Vdc voltage rating covers both AC and DC protection in PV systems, simplifying protection design and stocking. This dual rating allows a single device to protect the AC mains and the PV DC side, streamlining installation for rooftop arrays and large-scale solar plants alike. It reduces the number of different breakers needed on a typical PV protection panel. Fixed thermal/magnetic trip (T186) delivers predictable response and fast fault clearance, improving protection coordination with upstream devices. This minimizes nuisance trips during inrush or transient faults and supports safer maintenance windows in live PV installations. Operators benefit from consistent, repeatable performance across seasons and weather conditions. Three-pole RG frame provides synchronized protection across all three phases, with efficient mounting in common electrical enclosures. The RG design aligns with Eaton PVGard families, simplifying spare-part compatibility and field service. Installation teams gain time savings from standardized mounting patterns and documented wiring methods for PV protection circuits. Terminals are not included by default, but catalog notes indicate six rear connectors are included to speed field wiring. This configuration supports quick installation in tight spaces and reduces custom wiring work when integrating with PV inverters and switchgear. The result is faster commissioning and lower project risk. Interrupt ratings of 125 kAIC at 240 Vac and 65 kAIC at 480 Vac deliver robust fault interruption at common PV system voltages. Combined with DC protection at 250 Vdc and a T186 trip curve, the device provides dependable safety margins for both AC and DC portions of solar installations.