Sunny Boy 3000-5000TL-21

The Sunny Boy 3000-5000TL-21 is a family of SMA single-phase string inverters that includes the SB3000TL-21, SB3600TL-21, SB4000TL-21 and SB5000TL-21. SMA still lists manuals for this family among its current Sunny Boy documents, while the older TL-20 generation appears with the archived manuals. One SMA compatibility table lists the TL-21 models as inverters with a multifunction relay that use Speedwire as their communication standard. Another SMA compatibility table groups the SB 3000TL-21 to SB 6000TL-21 together and gives inverter firmware 2.00.00.R as the minimum version for support. Before you connect the inverter to an SMA communication or energy-management product, check that its firmware is at or above that version.

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• sentence 1: support check: partial - The passage lists the four models together as a Sunny Boy group, but it doesn't say they are single-phase string inverters. It only says they are in a string inverter category.
• sentence 5: support check: partial - The table gives the minimum firmware version, but it doesn't say to check it before connecting the inverter to a communication or energy-management product. That instruction is an inference.
• sentence 1: review: partial - The four TL-21 models are listed together under Sunny Boy and tagged 'String Inverters', but the passage never says they are single-phase. -->