Sigenergy Sigen Sensor SP-CT100

The Sigenergy Sigen Sensor SP-CT100 is a compact, installer-friendly power sensor designed to give your Sigenergy systems precise, real-time visibility of site consumption and export. It integrates natively with Sigenergy devices with no complex setup, so you can commission faster and hand over with confidence.

Why installers choose it

• 1% power accuracy for reliable control and reporting; 0.5% voltage/current accuracy for clean data into EMS and monitoring.
• DIN-rail, 1-module footprint with a plug-in design that speeds up installation in crowded boards.
• RS485 (Modbus RTU) ensures robust, noise-tolerant communication on site.
• Optional Sub-1G Wi-Fi HaLow kit enables efficient, stable wireless transmission—lab-tested up to 200 m line-of-sight—when cabling isn’t practical.

 

Built for real-world boards

The Sigen Sensor SP-CT100 supports common grid topologies (1P2W and 3-phase variants in the family), operates from 176–276 Vac (L-N), and is rated for 100 A operation with matching CTs—ideal for typical residential and light C&I installs. With an operating range of −25 °C to 65 °C, IP20 protection, and 0–90% RH tolerance, it’s engineered for electrical cupboards and plant rooms where space and conditions can be challenging.

 

Commissioning that just works

Paired with Sigenergy inverters and storage, the Sigenergy Sigen Sensor SP-CT100 is detected seamlessly—no advanced parameter hunting—so you can focus on correct CT orientation and neat routing. The included CT option features a 1 m lead with 16 mm/24 mm inner-diameter choices to suit typical line conductors, keeping installs tidy and repeatable.

 

Key specifications at a glance

• Measurement accuracy: Power ±1%; Voltage/Current ±0.5% (current ±0.5% from 4–100 A).
• Interface & protocol: RS485 @ 9,600 bps, Modbus RTU.
• Form factor & weight (SP-CT100): approx. 19×94.5×68.5 mm (alternative body 18×100×65.5 mm); ≈0.07 kg. DIN-rail 35 mm mounting.
• Environment: −25 °C to 65 °C operating; IP20.
• Optional wireless bridge (Sub1G Kit): IEEE 802.11ah at 868 MHz, 85–277 Vac supply, ~2 W consumption, up to 200 m open-area transmission (shorter with obstructions).

 

Where it fits best

Use the Sigen Sensor SP-CT100 to unlock accurate import/export metering for PV-plus-storage control, dynamic export limits, and meaningful homeowner dashboards. It’s a small addition that makes a big difference to data quality—and to the professionalism of every handover.