Sig Energy Split Phase Energy Controller

The Sig Energy Split Phase Energy Controller (SIG-EC-SP-US) is a split-phase energy controller for residential solar-plus-storage systems, rated at 11.5 kW with a nominal output power of 11500 W. It features four MPP trackers across a 50 ~ 550 V range, an MPPT current of 16 A each, and up to 23000 W of PV input. Delivering 240 VAC / 120 VAC output at 97.8% maximum efficiency, it pairs with SigenStor batteries for reliable backup.

Key Features:

• 11.5 kW rated, 11500 W nominal output power
• Maximum efficiency 97.8%
• 4 MPP trackers, MPPT range 50 ~ 550 V
• Max PV power 23000 W, max DC input 600 V
• 16 A max input / 20 A short circuit per MPPT
• Output 240 VAC / 120 VAC, 48 A continuous
• Backup 11500 W @240V, 5750 W @120V, 0 ms switch
• Peak output 17100 W for 10 seconds
• 27.6 x 11.8 x 10.2 in, 77.1 lbs, smart air cooling
• Ethernet, RS485, WLAN, Sigen CommMod US

Ideal for split-phase residential backup and self-consumption systems, this controller supports SigenStor BAT 6.0 / 9.0 US battery modules across a 300 ~ 600 V range. With THDi and THDv under 2%, a -22°F to 140°F operating range, and full monitoring connectivity, it integrates cleanly into modern solar storage installations. Order the SIG-EC-SP-US (also listed as SIGECSPUS) from Circuit Solar, in stock in Canada and shipped from Red Deer, AB.