The EI Automatic Transfer Switch (ATS) – Wiring
EI Residential Solar Solution US Installation Manual | www.tigoenergy.com | Help Center 29
Generator Connections (TSI-200-US-G only)
The ATS can connect to a generator that meets these requirements:
• Pure sine wave output
• A two-wire start signal circuit
• Minimum capacity equal to inverter wattage; maximum capacity 24,000kW.
Recommended capacity is 2x inverter capacity (≤24,000kW).
The ATS connects to the generator:
• Two-wire start signal connection
• Starter battery charger
• Power output terminals
To connect the ATS to a two-wire start signal connection:
1. Connect two RS-485 wires to the outermost pins of the 3-pin plug included in the
Accessories
bag.
2. Install the plug.
If the generator uses NC, change it to use NO.