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AC/S 1.2.1 ABB Application Controller BACnet with Advanced Web Visualization and Cross-Protocol Gateway Logic

Categories System Components
Model Number: AC/S 1.2.1
Timer Function: Supports scheduling and timer settings
Rated Load Specification: 8 channels × 250V AC / 10A
Payment Terms: T/T,Western Union
Communication Protocol: KNX Building Automation System
Packaging Details: Original Case
Installation Method: Flush-mounted
Delivery Time: 7 Days
Outputtype: Relay output
Installation Type: Wall-mounted or embedded
Certification: CE
MOQ: 1
Brand Name: ABB
Series: Schneider SpaceLogic
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AC/S 1.2.1 ABB Application Controller BACnet with Advanced Web Visualization and Cross-Protocol Gateway Logic

AC/S 1.2.1 ABB Application Controller BACnet with Advanced Web Visualization and Cross-Protocol Gateway Logic
Product Overview

The AC/S 1.2.1 is a professional-grade 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 Building Controllers range, this device represents the integration of advanced engineering standards with high-durability hardware, ensuring seamless coordination across diverse building services including lighting, HVAC, and system monitoring.

Designed for modular or decentralized installation, the AC/S 1.2.1 facilitates flexible control architectures that reduce energy overhead and enhance occupant comfort. Built with sustainable materials and future-ready technology, this device is a foundational building block for high-performance infrastructure standards such as LEED, WELL, and Green Premium.

It is specifically engineered for 24/7 mission-critical operations in high-end commercial office towers, healthcare facilities, and luxury residential estates.

Technical Specifications
Product ModelAC/S 1.2.1
Product RangeABB i-bus® KNX System
Communication ProtocolStandard KNX TP1 (S-Mode / PL-Link compatible)
Interface Configuration & ChannelsBACnet/IP interface + KNX bus node
Rated Operating Voltage24 V AC/DC
Control Power SupplyBus-powered via KNX line (DC 24-30 V SELV) or external mains supply
Functional Logic & Sensing PerformanceSupport for 1000 BACnet objects, automated visualization generation
Network Topology SupportSupports standard star, daisy-chain, and branch-based bus architectures
Wiring InterfaceIndustrial-grade maintenance-free PUSH-IN or industrial screw terminals
Operating Temperature-5°C to +45°C (standard indoor operational range)
Ingress ProtectionIP20 (Indoor mounting environments)
Housing MaterialHalogen-free, Flame-retardant industrial grade polycarbonate
CertificationsCE Marked, RoHS, REACH, KNX Certified, Green Premium, BTL Listed
Application Scenarios
The bridge between KNX field devices and corporate IT backbones. In high-rise office towers, it maps KNX data points directly to BACnet objects, allowing the facility management system (FMS) to coordinate plant-level HVAC and floor-level lighting.
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