RM/S4.1 ABB Room Master Professional High-Density Multi-Service Control Unit for Large Building Zones KNX

Product Summary
RM/S4.1 ABB Room Master Professional High-Density Multi-Service Control Unit for Large Building Zones KNX Product Overview The RM/S4.1 is a high-performance modular component of the ABB i-bus® KNX building automation system, engineered to deliver exceptional reliability, energy efficiency, and ...
Basic Properties
Brand Name: ABB
Certification: CE
Model Number: RM/S4.1
Trading Properties
Minimum Order Quantity: 1
Payment Terms: T/T,Western Union
Product Description
RM/S4.1 ABB Room Master Professional High-Density Multi-Service Control Unit for Large Building Zones KNX
Product Overview

The RM/S4.1 is a high-performance modular component of the ABB i-bus® KNX building automation system, engineered to deliver exceptional reliability, energy efficiency, and operational scalability for modern intelligent infrastructure.

As part of the globally recognized KNX Module 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 decentralized installation, the RM/S4.1 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 RM/S4.1
Product Range ABB i-bus® KNX System
Communication Protocol Standard KNX TP1 (S-Mode / PL-Link compatible)
Interface Configuration & Channels High-density multi-service configuration
Rated Operating Voltage 230 V AC / KNX Bus
Control Power Supply Bus-powered via KNX line (DC 24-30 V SELV) or external auxiliary supply
Functional Logic & Sensing Support for complex HVAC and lighting sequences, professional automation hub
Network Topology Support Supports standard star, daisy-chain, and branch-based bus architectures
Wiring Interface Industrial-grade maintenance-free PUSH-IN or industrial screw terminals
Installation Method Standard DIN Rail TH35 (EN 60715) or dedicated mounting interface
Operating Temperature -5°C to +45°C (standard indoor operational range)
Ingress Protection IP20 (Indoor mounting environments)
Material Quality Halogen-free, Flame-retardant industrial grade polycarbonate
Certifications CE Marked, RoHS, REACH, KNX Certified, Green Premium, BTL Listed
Application Scenarios
The RM/S4.1 is the professional choice for corporate boardrooms and clinic suites. It handles high-density automation sequences, managing up to 24 independent inputs for seamless control.
  • Ideal for mission-critical operations in high-end commercial, hospitality, and residential environments
  • Specifically engineered for 24/7 operation in demanding applications
  • Perfect for large building zones requiring sophisticated automation control
Product Details
Function: Control Electrical Switches Remotely
Device Type: Hybrid Switch Actuator
Bus Protocol: KNX Open Bus Protocol
Load Capacity: Supports Motors Up To 100W
Special Feature: Manual Override / Local Operation

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