ABB AI820 3BSE008544R1 Analog Input Module

Description

Product Overview

The ABB AI820 Differential Analog Input Module delivers precision signal acquisition for industrial automation, featuring 4 bipolar differential channels compatible with a wide range of ±20 mA, ±10 V, ±5 V, and other current/voltage inputs. Designed for seamless integration with MTU units (TU810, TU812, TU814, TU830), this module offers 14-bit resolution + sign and HART communication support, ensuring accurate data capture in demanding environments. Its robust design withstands accidental 24 V connections and 30 V DC faults, while group isolation from the ModuleBus enhances reliability.

Technical Specifications

• Brand: ABB
• Model: AI820
• Article Number: 3BSE020924-510 B 97
• Suffix “BB”: Keying code for MTU compatibility.
• Channels: 4 differential, bipolar
• Input Types:
  • Current: -20…+20 mA, 0…20 mA, 4…20 mA
  • Voltage: -10…+10 V, 0…10 V, 2…10 V, ±5 V, 0…5 V, 1…5 V
• Resolution: 14-bit + sign (±0.1% error)
• Input Impedance:
  • Voltage: 200 kΩ (common mode), 800 kΩ (normal mode)
  • Current: 250 Ω
• Protection: 30 V DC fault tolerance, 5W resistor protection (per channel)
• Isolation: Group-isolated from ground
• Update Cycle: <26 ms (all channels)
• Power Consumption:
  • +24V Modulebus: 70 mA
  • +5V Modulebus: 80 mA
• Environmental:
  • Dielectric Test: 500 V AC
  • CMRR/NMRR: 80 dB / 33 dB
• Compatibility: MTU TU810, TU812, TU814, TU830
• Dimensions: Not specified (refer to MTU documentation)

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