ABB DI801 Current Sinking Input Module

Product Description

The ABB DI801 (Part Number: 3BSE020508R1) is a compact 16-channel digital input module belonging to the S800L I/O product family. Operating on a 24VDC current sinking configuration, it interfaces binary field sensors smoothly with central processing systems while offering robust groupwise ground isolation and programmable hardware filter adjustments.

Technical Specifications

• Manufacturer: ABB

• Model Designation: DI801

• Article Number: 3BSE020508R1

• I/O Subsystem: S800L cost-optimized modular automation series

• Channel Volume: 16 separate binary input monitoring paths

• Signal Type Classification: Current sinking input topology

• Rated Operating Voltage: 24 V d.c. nominal loop potential

• Logic Level Zero: Negative 30 V to positive 5 V input voltage window

• Logic Level One: 15 V to 30 V input voltage window

• Internal Input Impedance: 3.5 kOhm circuit loading resistance

• Circuit Isolation Profile: Groupwise electrical isolation barrier relative to system ground

• Selectable Digital Filters: 2 ms, 4 ms, 8 ms, or 16 ms programmable hardware constants

• Maximum Field Cable: 600 meters (656 yards) total loop distance

• Insulation Voltage Rating: 50 V continuous working isolation

• Dielectric Test Potential: 500 V temporary overvoltage validation limit

• Module Power Dissipation: Typical 2.2 W thermal output under full load

• Modulebus Backplane Current: 70 mA maximum consumption at 5 V supply line

• Supported Wire Gauge: 30 to 12 AWG (0.05 to 2.5 mm2 solid conductor profiles)

• Terminal Screw Torque: Recommended fastening tension of 0.5 to 0.6 Nm

• Physical Module Dimensions: 86.1 mm width x 110 mm height x 58.5 mm depth

• Net Hardware Mass: 0.24 kg (0.53 lbs) base unit weight

Industrial Application Scenarios

• Auxiliary Contact Tracking: Captures simple binary state signals from remote motor control center circuit breakers and knife disconnect switches.

• Proximity Sensor Monitoring: Collects continuous physical position tracking data from inductive or capacitive field limit switches across distribution conveyor webs.

• Operator Panel Interfacing: Routes local factory floor pushbutton signals and selector switch logic commands straight to subrack backplane nodes.

• Skid Package Management: Serves as a compact, integrated signal collection cluster inside packaged water treatment or hydraulic pump lubricator boxes.