Eaton JGSDC3175FAG PV Guard MCCB - 3-Pole UL 489

Feature → Business Impact → ApplicationThe JGSDC3175FAG uses a three-pole JG-frame molded case design rated at 175 A, with a fixed thermal trip and adjustable magnetic trip (T185). This combination delivers precise coordination for fault isolation, reducing nuisance trips in inverter-heavy PV installations and improving system uptime across commercial rooftops and utility-scale projects. In practical terms, technicians gain predictable protection curves, faster service interruption when needed, and fewer unnecessary outages in solar combiner boxes and electrical rooms. Long-tail keywords include three-pole molded case circuit breaker, PV protection MCCB, and JG frame MCCB, all supporting compliant protection in harsh PV environments.Terminals are line and load with Cu wire, and mounting hardware is metric. This simplifies field wiring, ensures secure terminations, and enables fast panel commissioning in new builds or retrofits, whether in industrial facilities or renewable energy projects. The compact footprint also aids in dense control panels and small electrical rooms while maintaining robust protection for three-phase circuits.Rated for 600 Vac and 250 Vdc, UL 489 certified, the device is suitable for both AC distribution and DC-side PV protection. The combination of a TC (Trip Type) and durable construction supports reliable operation in fluctuating solar conditions, inverter startup surges, and fault events, delivering consistent protection with minimal maintenance and a favorable total cost of ownership.Dimensions of 3.57 in depth and 4.13 in height/width, along with a 6.5 lb weight, enable straightforward replacement in existing Eaton PVGuard deployments and standard panels. The product’s warranty policy—one year from installation or eighteen months from shipment—adds procurement confidence and supports risk management for maintenance planning.