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US/U 4.2 ABB Universal Interface 4-Fold Binary Input for Scanning Voltage Floating Contacts KNX

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US/U 4.2 ABB Universal Interface 4-Fold Binary Input for Scanning Voltage Floating Contacts KNX

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Model Number : US/U 4.2

Payment Terms : T/T,Western Union

Communication : KNX bus system

Packaging Details : Original Case

Weight : 200 grams

Delivery Time : 7 Days

Device Type : Switch Actuator

Isolation : Galvanic Isolation

Certification : CE

MOQ : 1

Brand Name : ABB

Maximum Load Capacity : Incandescent: ≤3600W, Halogen: ≤2500W

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US/U 4.2 ABB Universal Interface 4-Fold Binary Input for Scanning Voltage Floating Contacts KNX
Product Overview

The US/U 4.2 is a professional-grade component of the ABB i-bus® KNX smart building ecosystem, engineered to deliver exceptional reliability, energy efficiency, and operational scalability for modern intelligent infrastructure.

As part of the globally recognized Binary Input series, this device represents the convergence of high-performance hardware design and flexible software logic, ensuring seamless coordination across diverse building services including lighting, HVAC, or system maintenance.

Designed for DIN-rail or decentralized installation, the US/U 4.2 facilitates modular system architecture, allowing building operators to optimize environmental parameters and reduce energy overhead. Built with sustainable materials and future-ready technology, this device is a critical building block for achieving high-performance infrastructure standards such as LEED, BREEAM, and Green Premium.

Technical Specifications
Product Model US/U 4.2
Product Range ABB i-bus® KNX System
Communication Protocol Standard KNX TP1 (S-Mode / PL-Link compatible)
Interface Configuration & Channels 4 independent channels for binary input monitoring
Rated Operating Voltage Internal scanning voltage provided by the bus
Power Supply Bus-powered via KNX line (DC 24-30 V SELV) or external auxiliary supply
Functional Sensing & Diagnostic Elements Support for short/long push-button actions, Toggle, dimming, and blind control logic
Network Topology Support Supports star, daisy-chain, and branch-based bus architectures
Wiring Interface Maintenance-free PUSH-IN or industrial screw terminals for secure field connectivity
Operating Temperature -5°C to +45°C (typical indoor operational range)
Housing Material Halogen-free, Flame-retardant industrial grade polycarbonate
Ingress Protection IP20 (Indoor installation environments)
Certifications CE Marked, RoHS, REACH, KNX Certified, BTL Listed, Green Premium
Application Scenarios
The US/U 4.2 is specified for mid-density interface requirements in residential and light commercial zones. It typically manages a combination of window contacts and manual control buttons in a single room, ensuring that HVAC systems automatically setback when windows are opened, thus maximizing energy savings in climate-controlled environments.

Product Tags:

ABB Universal Interface KNX

      

4-Fold Binary Input KNX

      

Binary Input for Floating Contacts

      
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