The Enphase X-IQ-AM1-240-3M IQ Combiner 3 provides the same functionality as the previous version by reducing labor costs, but now the interconnection equipment is consolidated into an even more compact enclosure. This pre-wired enclosure will help you streamline PV and storage installations by providing a consistent solution for any residential application. As with previous generations, it still uses an outdoor-rated, NRTL-certified NEMA type 3R, polycarbonate enclosure which now contains an Enphase IQ Envoy™ printed circuit board, rather than an entire Envoy, for wiring IQ Envoy connections. The IQ Envoy printed circuit board inside the IQ Combiner 3 is pre-wired at the terminal blocks for power and production metering connections.