CircuitFlow™ 200A Current Transformer (200A/66.6mA)

The CircuitFlow 200A Current Transformer (200A/66.6mA) from Circuit Sensors is a precision-engineered, plug-and-play replacement for the APsystems 200A CT (Part #18083020012). Designed to match the original specifications exactly, this CT provides the same 66.6mA output and split-core design for fast, tool-free installation.

Built for accuracy and durability, the CircuitFlow CT is fully compatible with APsystems microinverter systems, including QS1, YC600, and QT2 models. Whether you’re replacing a damaged sensor or stocking up on reliable alternatives, this CT delivers high performance without the OEM markup.

Key Features

• Direct replacement for APsystems 18083020012 (200A/66.6mA)
• Split-core design for easy, tool-free installation
• 16mm opening for standard residential/commercial conductors
• Accurate and reliable Class 1 measurement
• Compatible with ECU-R and other APsystems gateways

Ideal for solar professionals and system owners seeking cost-effective alternatives without sacrificing quality or compatibility. Engineered by Circuit Sensors – built to perform, priced to compete.