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LK/S 4.2 ABB Line Coupler KNX 2-Space Unit Galvanic Isolation Main Sub-Line Network Gateway
LK/S 4.2 ABB Line Coupler KNX 2-Space Unit Galvanic Isolation Main Sub-Line Network Gateway
LK/S 4.2 ABB Line Coupler KNX 2-Space Unit Galvanic Isolation Main Sub-Line Network Gateway
LK/S 4.2 ABB Line Coupler KNX 2-Space Unit Galvanic Isolation Main Sub-Line Network Gateway
LK/S 4.2 ABB Line Coupler KNX 2-Space Unit Galvanic Isolation Main Sub-Line Network Gateway
LK/S 4.2 ABB Line Coupler KNX 2-Space Unit Galvanic Isolation Main Sub-Line Network Gateway
Specifications
Model Number :
LK/S 4.2
Productname :
Hybrid Switch Actuators
Display Output :
HDMI 2.1, DisplayPort 1.4a
Payment Terms :
T/T,Western Union
Ports :
USB 3.2, HDMI, DisplayPort
Packaging Details :
Original Case
Graphicscard :
NVIDIA GeForce RTX 3080
Delivery Time :
7 Days
Installation :
DIN 35mm standard rail mounting
Certification :
CE
MOQ :
1
Brand Name :
ABB
Installation Type :
Wall-mounted or embedded
Description
LK/S 4.2 ABB Line Coupler KNX 2-Space Unit Galvanic Isolation Main Sub-Line Network Gateway
Product Overview

The ABB LK/S 4.2 is a high-specification Line Coupler KNX 2-Space Unit from the prestigious LK series, engineered to deliver exceptional reliability, precision, and operational efficiency for modern intelligent building environments.

As part of the globally recognized ABB i-bus® KNX ecosystem, this device represents the convergence of advanced engineering standards with high-durability hardware, ensuring seamless coordination of critical building services such as solar shading, lighting control, and system networking.

Designed for professional installation in commercial office towers, luxury hospitality projects, and high-end residential estates, the LK/S 4.2 enables building operators to implement modular control architectures that reduce energy overhead while maximizing occupant comfort.

Built with sustainable, halogen-free materials and future-ready technology, this device is a critical building block for achieving high-performance infrastructure certifications such as LEED, WELL, and Green Premium. It is specifically engineered for 24/7 mission-critical operations in sophisticated smart building infrastructures.

Technical Specifications
Product Model LK/S 4.2
Product Series ABB i-bus® KNX LK
Communication Protocol KNX TP1 (S-Mode)
Interface Configuration 1 line/area coupling port + 1 line repeater port
Rated Operating Voltage Bus-powered via KNX
Power Supply Bus-powered via KNX line (DC 24-30 V SELV) or external mains supply
Functional Logic & Sensing Galvanic isolation between lines, telegram filtering, repeater function
Network Topology Support Supports standard star, daisy-chain, and branch-based bus architectures
Wiring Interface Maintenance-free PUSH-IN or industrial 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 industrial grade polycarbonate
Certifications CE Marked, RoHS, REACH, KNX Certified, Green Premium Environmental Data
Application Scenarios

The backbone of multi-line KNX topologies. Connects main and sub-lines with galvanic isolation, filtering telegrams to prevent network congestion in large commercial buildings with hundreds of devices.

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LK/S 4.2 ABB Line Coupler KNX 2-Space Unit Galvanic Isolation Main Sub-Line Network Gateway

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Product Detail
Model Number :
LK/S 4.2
Productname :
Hybrid Switch Actuators
Display Output :
HDMI 2.1, DisplayPort 1.4a
Payment Terms :
T/T,Western Union
Ports :
USB 3.2, HDMI, DisplayPort
Packaging Details :
Original Case
Contact Supplier
LK/S 4.2 ABB Line Coupler KNX 2-Space Unit Galvanic Isolation Main Sub-Line Network Gateway
LK/S 4.2 ABB Line Coupler KNX 2-Space Unit Galvanic Isolation Main Sub-Line Network Gateway
LK/S 4.2 ABB Line Coupler KNX 2-Space Unit Galvanic Isolation Main Sub-Line Network Gateway

Maituo Intelligent Technology Co.，Ltd

Verified Supplier
1 Years
hainan, hainan
Since 2019
Business Type :
Manufacturer, Seller, Trading Company, Exporter
Main Products :
Building Controllers, Switch Actuator, Dimming Actuator
Total Annual :
800000 USD-1000000
Employee Number :
50~80
Certification Level :
Verified Supplier
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