For inverters, the disconnect means must disconnect the inverter from all sources of power—both DC input from the array and AC output to the utility. That means they can open the cover and see the contacts are separated. An enclosed circuit breaker doesn't allow that. My breaker is 30M away from the inverter, I have a lockable disconnect next to. . Under NEC Article 690. The confusion stems. . Smart Integration is Standard: Modern solar disconnect switches increasingly feature IoT connectivity and remote monitoring capabilities, enabling predictive maintenance and automated emergency response – a critical advancement as solar installations scale beyond 150GW in the US market. Oversizing. . Hybrid inverters link PV arrays, batteries, and the grid. I don't recall anything being in 690 but I think a strong argument can be made that the relevant requirements in. . Per NEC Article 100, a “PV system” is defined as “The total components and subsystem that, in combination, convert solar energy into electric energy for connection to a utilization load.