BE/S8.20.2.1 ABB Binary Input 8-Fold 20V DC for High-Density Dry Contact Sensing in Professional KNX Systems

Product Summary
BE/S8.20.2.1 ABB Binary Input 8-Fold 20V DC for High-Density Dry Contact Sensing in Professional KNX Systems The BE/S8.20.2.1 is a high-performance building automation component from the ABB i-bus® ecosystem, engineered to deliver exceptional reliability, data integrity, and operational scalability ...
Basic Properties
Brand Name: ABB
Certification: CE
Model Number: BE/S8.20.2.1
Trading Properties
Minimum Order Quantity: 1
Payment Terms: T/T,Western Union
Product Description
BE/S8.20.2.1 ABB Binary Input 8-Fold 20V DC for High-Density Dry Contact Sensing in Professional KNX Systems
The BE/S8.20.2.1 is a high-performance building automation component from the ABB i-bus® ecosystem, engineered to deliver exceptional reliability, data integrity, and operational scalability for modern intelligent infrastructure.
Product Overview
As part of the globally recognized Binary Input 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, HVAC management, and system monitoring. Designed for modular or decentralized installation, the BE/S8.20.2.1 facilitates professional control architectures that reduce energy overhead and enhance occupant comfort.
Built with sustainable, halogen-free materials and future-ready firmware, this device is a foundational building block for high-performance infrastructure projects targeting LEED, WELL, and Green Premium certifications. It is specifically engineered for 24/7 mission-critical operations in high-end commercial office towers, healthcare facilities, and luxury residential estates.
Technical Specifications
Specification Details
Product Model BE/S8.20.2.1
Product Series ABB i-bus® Intelligent Systems
Communication Protocols KNX / BACnet IP / EnOcean
Interface Configuration & Channels 8 channels with internal scanning voltage
Rated Operating Voltage Bus-powered
Power Supply Bus-powered via KNX line (DC 24-30 V SELV) or external auxiliary supply (model dependent)
Functional Logic & Sensing 8 independently configurable inputs, support for long/short press logic
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 installation environments)
Housing Material Halogen-free, Flame-retardant industrial grade polycarbonate
Certifications CE Marked, RoHS, REACH, KNX Certified, Green Premium, BTL Listed
Application Scenarios
Commonly used in large-scale office floor monitoring. It aggregates 8 window or door contacts, providing the BMS with the occupancy data needed to optimize HVAC energy consumption.
Product Details
Installation Method: Standard 35mm DIN Rail Mounting
Channel Configuration: 16 Independent Control Channels
Controlmethod: Electrical And Manual Override
Control Modes: Automatic KNX Sensor Linkage
Function: Control Electrical Switches Remotely
Power Consumption: Approximately 10mA

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