The ABB TU846 (3BSE022460R1) is an analog terminal base unit for the S800 I/O system, providing a secure connection interface for 8-channel analog I/O modules with HART support, featuring cage clamp screw terminals, DIN rail mounting, LED status indicators, and compatibility with various voltage and current signal types in industrial automation applications.
ABB TU846 (3BSE022460R1) Analog Terminal Base: Overview and Technical Specifications Brand and Model Information Brand: ABB (Asea Brown Boveri)Model: TU846 (Part Number: 3BSE022460R1)Product Type: Analog Terminal Base Unit for S800 I/O SystemSeries: ABB S800 I/O System (part of the ABB Ability™ 800xA Compact Product Suite)Application: Specifically designed to provide a secure and reliable connection interface for ABB analog I/O modules (such as AI845, AO845, AI845A, AO845A), facilitating field wiring to the I/O system in industrial automation and process control applications Technical Specifications Physical and Environmental Specifications Dimensions: Standard S800 I/O terminal base form factor, approximately 100 mm × 60 mm × 25 mm (3.94" × 2.36" × 0.98") Weight: Approximately 0.15 kg (0.33 lb) Operating Temperature: -40°C to +70°C (-40°F to +158°F) Storage Temperature: -40°C to +85°C (-40°F to +185°F) Humidity: 5% to 95% non-condensing, with protection against dust and moisture (IP20 enclosure rating) Mounting: DIN rail mounting (EN 50022 standard) for easy installation in control cabinets Color: Standard industrial gray RAL 7035 Connection and Interface Specifications Module Interface: Proprietary S800 I/O module connector for seamless integration with ABB analog I/O modules Terminal Type: Screw terminals with cage clamp technology for secure and reliable wire connections Wire Range: Accepts solid or stranded wires with cross-section from 0.5 mm² to 2.5 mm² (20 AWG to 14 AWG) Terminal Points: 24 terminal points for field wiring, supporting 8 analog channels (3 terminals per channel: positive, negative, and common) Process Voltage Connections: Dedicated terminals for process voltage supply (typically 24V DC) to power field devices Grounding: Separate protective earth (PE) terminal for proper grounding and EMC protection Input/Output Compatibility Specifications Compatible Modules: AI845 (analog input with HART), AI845A (analog input with HART and extended diagnostics), AO845 (analog output with HART), AO845A (analog output with HART and open circuit detection) Signal Types Supported: Voltage signals (0-1V, 0-5V, 1-5V, 0-10V, -10V to +10V), current signals (0-20mA, 4-20mA), and HART communication signals Isolation: Galvanic isolation between field circuits and module backplane (typically 250V AC for 1 minute) Transmitter Power Supply: Supports optional transmitter power supply (24V DC) through dedicated terminals for 2-wire and 3-wire field devices
interface *Output method: rear output *Fast Ethernet: 3 slots, each slot supports 8 ports, with optional optical and electrical options *Gigabit Ethernet: Provides 4 1000Base SFP slots *CONSOLE port: RS232 (RJ45) *Alarm port: 5.08mm spacing 3-pin Phoenix wiring terminal, 250VAC/220VDC 2 A cable *Twisted pair cable: 100m *Multimode fiber: 1310nm, 2km (100Mbps); 1310nm, 500m (gigabit) *Single mode fiber: 1310nm, 0-40km; 1550nm, 0-80km source *Input voltage: 110-220VDC/VAC, redundant input *Connection terminal: 5.08mm spacing 5-pin Phoenix wiring terminal *Power:<40W mechanical properties *Case: Aluminum model with fanless design *Protection level: IP30 *Installation method: 19 inch 1U rack type *Shell size: 440 mm * 44.5 mm * 370 mm (W * H * D), as shown in the attached image *Impact, vibration, and drop: meet the requirements of IEC61850-3 5.5 CM level *Weight: approximately 4.3kg
