UD/S 2.315.2.1 ABB Universal Dimming Actuator 2-Fold 315 VA Optimized for LEDi and Conventional Loads KNX

Product Summary
UD/S 2.315.2.1 ABB Universal Dimming Actuator 2-Fold 315 VA Optimized for LEDi and Conventional Loads KNX Product Overview The UD/S 2.315.2.1 is a high-performance modular component of the ABB i-bus® KNX building automation system, designed to provide exceptional reliability, energy efficiency, and ...
Basic Properties
Brand Name: ABB
Certification: CE
Model Number: UD/S 2.315.2.1
Trading Properties
Minimum Order Quantity: 5
Payment Terms: T/T,Western Union
Product Description
UD/S 2.315.2.1 ABB Universal Dimming Actuator 2-Fold 315 VA Optimized for LEDi and Conventional Loads KNX
Product Overview

The UD/S 2.315.2.1 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 2.315.2.1 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.

Technical Specifications
Product Model UD/S 2.315.2.1
Product Range ABB i-bus® KNX System
Communication Protocol Standard KNX TP1 (S-Mode / PL-Link compatible)
Interface Configuration & Channels 2 independent dimming channels (315 VA each)
Rated Operating Voltage 230 V AC / 24-30 V DC Bus
Control Power Supply Bus-powered via KNX line (DC 24-30 V SELV) or external auxiliary supply
Functional Sensing & Logic Auto-load detection, Overload and short-circuit protection, Manual override
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
Application Scenarios
The UD/S 2.315.2.1 is the flagship solution for luxury hotel guest rooms and high-spec offices. It provides smooth, flicker-free dimming for retrofit LED lamps (LEDi), automatically identifying the load type to optimize the dimming curve. In premium suites, its dual-channel design coordinates lighting scenes between living areas and work zones, ensuring an exceptional user experience while maintaining energy efficiency.
Product Details
Outputtype: Relay Output
Actuatortype: Hybrid
Installation: 35mm DIN Rail Mounting,
Special Feature: Manual Override / Local Operation
Compatibility: Works With Various Smart Home Systems
Load Capacity: Supports Motors Up To 100W

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