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

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

Model Number : RM/S4.1

Delivery Time : 7 Days

Function : Control electrical switches remotely

Load Capacity : Supports motors up to 100W

Payment Terms : T/T,Western Union

Device Type : Hybrid Switch Actuator

Packaging Details : Original Case

Special Feature : Manual Override / Local Operation

Certification : CE

MOQ : 1

Brand Name : ABB

Bus Protocol : KNX open bus protocol

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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

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

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

ABB Room Master KNX switch actuator

high-density KNX control unit

multi-service control unit for buildings

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