Solis RSD rapid shutdown

The Solis RSD is a module-level rapid shutdown device sold in single-channel and dual-channel versions, Solis-RSD1L-1G and Solis-RSD2L-1G. It sits in a NEMA 4X enclosure, mounted under a PV module or within 5 feet of the array on a support rail. An AC control signal keeps relays in the positive and negative PV conductors closed. When first responders cut AC power, the relays open and the array drops to a safe low voltage within 10 seconds. A green LED on the unit means it is getting AC power and its PV output circuits may be live. The AC control cable gets its power from a 220-240 VAC source. The RSD is certified to UL 1741 and meets the 2014 NEC 690.12 rapid shutdown requirements. It has only been qualified with the Solis-(2.5-5)K-2G-US and Solis-1P(2.5-10)K-4G-US inverters. Do not use it with inverters from other manufacturers. Only qualified personnel may install it. Disconnect AC and DC before you start, and put up a permanent label saying the system has rapid shutdown. You may remove the factory DC and AC connectors in the field without voiding the warranty. Leave at least 4 inches of cable when you do.

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• sentence 1: support check: partial - Models RSD1L-1G/RSD2L-1G and single/dual-channel configurations are stated, but mapping of models to channels and 'module-level' are not explicit.
• sentence 3: support check: partial - AC closes relays in positive and negative circuits and removal opens them with shutdown in under 10 s, but 'first responders cut AC' is in the passage; 'safe low voltage' is 30 VDC, fine; mostly supported though relays 'AC control signal' phrasing is loose.
• sentence 1: review: partial - The passages give the two model names and say single-channel and dual-channel versions exist, but they never say which model is which and never call the device 'module-level'. -->