UD/S4.210.2.1 ABB Universal Dim Actuator 4-Fold 210 VA for LEDi Dimming and Scene Control KNX
The UD/S 4.210.2.1 is a high-performance modular component of the ABB i-bus® KNX building automation system, designed to provide exceptional reliability, energy efficiency, and operational scalability for modern intelligent infrastructure.
As part of the globally recognized Dimming Actuator range, this device represents the integration of advanced engineering standards with high-durability hardware, ensuring seamless coordination of critical building services such as lighting control, climate management, and system monitoring.
Engineered for DIN-rail or wall mounting, the UD/S 4.210.2.1 enables building operators to implement modular control architectures that reduce energy overhead and enhance occupant comfort. Built with sustainable, halogen-free materials and future-ready firmware, this device is a fundamental building block for high-performance infrastructure projects targeting LEED, WELL, and Green Premium certifications.
| Product Model | UD/S 4.210.2.1 |
| Product Range | ABB i-bus® KNX System |
| Communication Protocol | Standard KNX TP1 (S-Mode / PL-Link compatible) |
| Interface Configuration & Channels | 4 independent channels |
| Rated Operating Voltage | 230V AC |
| Control Power Supply | Bus-powered via KNX line (DC 24-30 V SELV) or external auxiliary supply |
| Functional Sensing & Logic | High-durability internal relays, status feedback objects, logic gates, and time functions |
| Network Topology | Supports standard star, daisy-chain, and branch-based bus architectures |
| Wiring Interface | Industrial-grade maintenance-free PUSH-IN or screw terminals for secure connectivity |
| Operating Temperature | -5°C to +45°C (standard indoor operational range) |
| Ingress Protection | IP20 (Indoor mounting environments) |
| Housing Material | Halogen-free, Flame-retardant Polycarbonate (UL 94 V-0) |
| Certifications | CE Marked, RoHS, REACH, KNX Certified, Green Premium, BTL Listed |
The UD/S 4.210.2.1 is designed for high-density commercial and residential projects where space and reliability are paramount. It manages multiple electrical loads from a single modular unit, reducing the total footprint in electrical distribution boards.
ABB Universal Dim Actuator for LED dimming
,KNX dimming actuator with scene control
,4-fold dimming actuator 210 VA
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