JB 520C23 KNX Single Shutter Blind Actuator 1xAC 120V 6A UL NEMA Junction Box 5WG1520-4CB23

The JB 520C23 KNX shutter blind actuator is a single-channel AC 120 V controller designed for North American junction box installations. This advanced actuator delivers 6 A rated contact current for resistive loads and utilizes two electrically interlocked relays to reverse motor direction for precise control of sun protection systems, shutters, and blinds.

Integrated electronics automatically detect limit switch actuation and calibrate travel time, ensuring accurate positioning without manual configuration. The bus-powered device features an integrated bus coupling unit with bus terminal block connectivity and is housed in a UL/NEMA-compliant junction box with 1/2 inch threaded connector for secure, code-compliant installation.

• Automatic travel time calibration and limit switch detection
• Configurable behavior during bus voltage failure and recovery
• Automatic sunlight tracking capability
• Manual and standard operating modes
• 8-bit resolution status reporting for sun protection and slat position
• Integrated 1-bit and 8-bit scene control (up to 8 scenes per channel)
• Safety functions for wind, rain, and frost conditions