ABB |TU890 3BSC690075R1|Compact Intrinsic Safety Module Termination Unit
ABB TU890 3BSC690075R1 Compact Intrinsic Safety Module Termination Unit
Description
ABB TU890 is a compact, passive module termination unit designed for S800 I/O systems, optimized for intrinsic safety applications with up to 8 I/O channels.
Features
- Designed for intrinsic safety use with AI890, AI893, AI895, AO890, AO895, DI890, and DO890 modules
- Distributes ModuleBus and auto-addressing via position signals
- Gray terminals for field signal and process voltage connections
- Mechanical keying prevents incorrect module insertion
- Latching mechanism for DIN rail mounting
Technical Specifications
- Type: Module Termination Unit (MTU)
- Channels: 8
- Voltage Rating: Up to 50 V (limited by I/O module design)
- Current per Channel: Max. 2 A
-
Wire Size Compatibility:
- Process connector: Solid 0.2–4 mm², Stranded 0.2–2.5 mm² (24–12 AWG)
- Power supply connector: 0.25–2.5 mm² (24–14 AWG)
- Torque Requirement: 0.5–0.6 Nm
- Dielectric Test Voltage: 500 V AC
- Mounting: Horizontal on DIN rail
- Operating Temperature: 0 to +55 °C
- Storage Temperature: -40 to +70 °C
- Humidity: 5–95% non-condensing
- Certifications: ATEX, IECEx, cFMus, ABS, BV, DNV-GL, LR
- Protection Class: IP20
- Pollution Degree: IEC 60664-1, Degree 2
- EMC Compliance: EN 61000-6-4, EN 61000-6-2
- RoHS Compliant: Yes
-
Dimensions:
- Width: 64 mm (with connector), 58.5 mm edge-to-edge
- Depth: 58 mm, 106 mm including terminals
- Height: 194 mm (with latch)
- Weight: 0.17 kg
ABB |TU890 3BSC690075R1|Compact Intrinsic Safety Module Termination Unit

ABB |TU890 3BSC690075R1|Compact Intrinsic Safety Module Termination Unit
ABB TU890 3BSC690075R1 Compact Intrinsic Safety Module Termination Unit
Description
ABB TU890 is a compact, passive module termination unit designed for S800 I/O systems, optimized for intrinsic safety applications with up to 8 I/O channels.
Features
- Designed for intrinsic safety use with AI890, AI893, AI895, AO890, AO895, DI890, and DO890 modules
- Distributes ModuleBus and auto-addressing via position signals
- Gray terminals for field signal and process voltage connections
- Mechanical keying prevents incorrect module insertion
- Latching mechanism for DIN rail mounting
Technical Specifications
- Type: Module Termination Unit (MTU)
- Channels: 8
- Voltage Rating: Up to 50 V (limited by I/O module design)
- Current per Channel: Max. 2 A
-
Wire Size Compatibility:
- Process connector: Solid 0.2–4 mm², Stranded 0.2–2.5 mm² (24–12 AWG)
- Power supply connector: 0.25–2.5 mm² (24–14 AWG)
- Torque Requirement: 0.5–0.6 Nm
- Dielectric Test Voltage: 500 V AC
- Mounting: Horizontal on DIN rail
- Operating Temperature: 0 to +55 °C
- Storage Temperature: -40 to +70 °C
- Humidity: 5–95% non-condensing
- Certifications: ATEX, IECEx, cFMus, ABS, BV, DNV-GL, LR
- Protection Class: IP20
- Pollution Degree: IEC 60664-1, Degree 2
- EMC Compliance: EN 61000-6-4, EN 61000-6-2
- RoHS Compliant: Yes
-
Dimensions:
- Width: 64 mm (with connector), 58.5 mm edge-to-edge
- Depth: 58 mm, 106 mm including terminals
- Height: 194 mm (with latch)
- Weight: 0.17 kg