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US/U 2.2 ABB Universal Interface 2-Fold Binary Input for Conventional Push-buttons and Sensors KNX

Categories Binary Input
Model Number: US/U 2.2
Mountingtype: DIN rail
Payment Terms: T/T,Western Union
Moduletype: Input
Packaging Details: Original Case
Delivery Time: 7 Days
Type: Input Module
Brand Name: ABB
Input Current: Analog (0 ... 10 V / 4 ... 20 mA) 4
Certification: CE
Load Capacity: Max 100W per channel
MOQ: 1
Inputcurrent: 5 mA per channel
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US/U 2.2 ABB Universal Interface 2-Fold Binary Input for Conventional Push-buttons and Sensors KNX

US/U 2.2 ABB Universal Interface 2-Fold Binary Input for Conventional Push-buttons and Sensors KNX
Product Overview

The US/U 2.2 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, and system maintenance.

Designed for DIN-rail or decentralized installation, the US/U 2.2 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 ModelUS/U 2.2
Product RangeABB i-bus® KNX System
Communication ProtocolStandard KNX TP1 (S-Mode / PL-Link compatible)
Interface Configuration2 independent channels for scanning floating contacts
Rated Operating VoltageBus-powered (DC 24 V SELV)
Power SupplyBus-powered via KNX line (DC 24-30 V SELV) or external auxiliary supply
Functional ElementsInternal pulse generator for status scanning, Compact module for junction boxes
Network Topology SupportSupports star, daisy-chain, and branch-based bus architectures
Wiring InterfaceMaintenance-free PUSH-IN or industrial screw terminals for secure field connectivity
Operating Temperature-5°C to +45°C (typical indoor operational range)
Housing MaterialHalogen-free, Flame-retardant industrial grade polycarbonate
Ingress ProtectionIP20 (Indoor installation environments)
CertificationsCE Marked, RoHS, REACH, KNX Certified, BTL Listed, Green Premium
Application Scenarios
Commonly deployed in individual hotel guest rooms or residential bedrooms, the US/U 2.2 links a dual-gang light switch or a bedside lamp control to the KNX bus. This allows for simple, tactile user interaction with advanced automation scenes without the high cost of full smart keypad panels, making it a cost-effective standard for standard-tier hospitality projects.
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