ABB KNX 8 Ch Blind Roller JRA/S8.230.5.2

Description

Precision Motor Control for Intelligent Shading Systems

The ABB JRA/S8.230.5.2 is a premium, high-density 8-channel blind and roller shutter actuator purpose-built for advanced KNX building automation. Engineered to manage up to eight independent 230V AC electric drives, this DIN-rail mounted module delivers precise positioning, sophisticated automated shading routines, and robust mechanical protection for residential and commercial projects alike.

Equipped with integrated automatic travel time detection, the actuator learns the exact transit time of each connected blind or shutter. This ensures ultra-accurate positioning commands down to the exact percentage—perfect for aligning slats to uniform angles across an entire building facade.

Key Performance Features

• 8 Independent Channels: Control up to 8 separate roller shutters, sun blinds, venetian blinds, or ventilation flaps from a single module.

• Automatic Travel Detection: Automatically measures and calibrates the end-to-end runtime of each blind motor, compensating for wear and temperature changes over time.

• Advanced Slat Adjustment: Offers microscopic control over venetian blind slat angles to optimize natural daylighting while avoiding glare.

• Comprehensive Device Protection: Built-in electromechanical interlocking prevents simultaneous UP and DOWN commands, protecting expensive motor windings from terminal damage.

• Bus-Independent Manual Operation: Features tactile physical buttons on the front panel for immediate manual testing and override controls—operational even if the KNX bus voltage isn’t present.

Technical Breakdown

• Compatible Bus System: KNX (TP)

• Number of Channels: 8 independent motor outputs

• Rated Voltage: 230 V AC (50/60 Hz)

• Rated Current: 6 A per channel (g-L/g-G)

• Module Form Factor: 8 Space Modular DIN-rail placement (MDRC)

Click here for more info

click here for more options