ABB TU891 3BSC840157R1 Terminal Block

General Information

• Article Number: 3BSC840157R1

• Type: Compact

• Connection: Terminal block

• Number of Channels: 8

• Rated Voltage: 24 V

• Mounting Orientation: Horizontal

• Mounting Temperature Rating: 55 °C (131 °F)

• Compatible I/O Modules: AI890, AI893, AI895, AO890, AO895, DI890, DO890

• Process Connections: 27 gray terminals

• I/O Configuration: Single (non-redundant)

Detailed Data

• Maximum Current per I/O Channel: 2 A

• Acceptable Wire Sizes – Process Connector:

• Solid conductors: 0.2 to 4 mm²

• Stranded conductors: 0.2 to 2.5 mm² (24 to 12 AWG)

• Recommended Tightening Torque: 0.5 to 0.6 Nm

• Acceptable Wire Sizes – Power Supply Connector:

• 0.25 to 2.5 mm² (24 to 14 AWG)

• Recommended Tightening Torque: 0.5 to 0.6 Nm

• Dielectric Test Voltage: 500 V AC

Environment and Certification

• CE Marking: Yes

• Electrical Safety Standards: IEC 61131, EN 61010-1, EN 61010-2-201

• Hazardous Location Approval: Not applicable

• Marine Certifications: ABS, BV, DNV-GL, LR

• Operating Temperature:

• 0 to +55 °C (+32 to +131 °F)

• Storage: –40 to +70 °C (–40 to +158 °F)

• Relative Humidity: 5% to 95%, non-condensing

• Pollution Degree: Degree 2 according to IEC 60664-1

• Corrosion Protection: ISA-S71.04 Class G3

• Maximum Ambient Temperature:

• 55 °C (131 °F) horizontal mounting

• 40 °C (104 °F) vertical mounting

• Protection Class: IP20 (IEC 60529)

• Mechanical Standards: IEC/EN 61131-2

• EMC Compliance: EN 61000-6-4, EN 61000-6-2

• Overvoltage Category: IEC/EN 60664-1, EN 50178

• Equipment Class: Class I (protective earth)

• RoHS Compliance: EN 50581:2012

• WEEE Compliance: Directive 2012/19/EU

Dimensions

• Width:

• 64 mm (1.77 in.) including connector

• 58.5 mm (2.3 in.) edge-to-edge installed

• Depth:

• 58 mm (2.28 in.)

• 106 mm (4.2 in.) including terminals

• Height: 194 mm (7.6 in.) including latch

• Weight: 0.17 kg (0.37 lbs)