The ABB JRA/S4.24.5.2 Blind/Shutter Actuator controls 4 independent 24 V DC motors for blinds, roller shutters, awnings, doors, windows, or ventilation flaps. It provides travel-time measurement for runtime position feedback, with manual operation.

Same channel count: JRA/S4.24.2.2 (Basic). Voltage sibling: JRA/S4.230.5.2. Bus-powered MDRC — no separate electronics supply. Related SMI option: JA/S4.SMI.1M.

Key Features

• 4 channels: Independent blind / shutter / awning motors.
• 24 V DC motors: DC motor drives with electromechanical interlocking.
• Travel-time measurement: Runtime-based position feedback.
• Manual operation: Front push-buttons + status LEDs.
• KNX Data Secure: Supported on this generation.

At a Glance

Specification	Detail
Product type	KNX Blind/Shutter Actuator, MDRC
Order code	JRA/S4.24.5.2
Product ID	2CDG110298R0011
Channels	4
Motor voltage	24 V DC
Feature set	Travel Detection
Manual operation	Yes
Width	4 MW
Supply	KNX bus only

Technical data, installation instructions, ETS .knxprod, drawings, and declarations are under Downloads.

Applications

• Façade shading: Blinds, shutters, and awnings with interlocking motor outputs.
• Openings: Windows, doors, and ventilation flaps on KNX.
• Position feedback: Travel-time based % positioning without end switches.

Installation Notes

Mount on a 35 mm DIN rail (4 MW). Connect KNX and 24 V DC motor circuits per the connection diagram. Import the matching JRA/S .knxprod (feature family .5.2) from Downloads when available and select the channel application in ETS.