ABB|TU851|Extended Module Termination Unit
ABB TU851 3BSE068782R1 Extended Module Termination Unit
Description
ABB TU851 is an extended module termination unit designed for S800 I/O systems, supporting up to 16 isolated I/O channels with ModuleBus distribution.
Features
- Supports 16 I/O channels with terminal block connections
- Distributes ModuleBus and assigns addresses via position signals
- DIN rail mounted with latching mechanism for grounding
- Mechanical keying prevents incorrect module insertion
- Dual mechanical keys provide 36 configuration options
Technical Specifications
- Type: Module Termination Unit (MTU)
- Channels: Up to 16
- Voltage Rating: Up to 250 V
- Current per Channel: Max. 3 A
-
Wire Size Compatibility:
- Solid: 0.2–4 mm²
- Stranded: 0.2–4 mm² (24–10 AWG)
- Dielectric Withstand Voltage: 2000 V AC
- Mounting: Horizontal or vertical on DIN rail
- Operating Temperature: 0 to +55 °C
- Storage Temperature: -40 to +70 °C
- Humidity: 5–95% non-condensing
- Certifications: CE, UL, 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: 126 mm (with connector), 120.5 mm edge-to-edge
- Depth: 64 mm
- Height: 110 mm
- Weight: 0.22 kg
ABB|TU851|Extended Module Termination Unit

ABB|TU851|Extended Module Termination Unit
ABB TU851 3BSE068782R1 Extended Module Termination Unit
Description
ABB TU851 is an extended module termination unit designed for S800 I/O systems, supporting up to 16 isolated I/O channels with ModuleBus distribution.
Features
- Supports 16 I/O channels with terminal block connections
- Distributes ModuleBus and assigns addresses via position signals
- DIN rail mounted with latching mechanism for grounding
- Mechanical keying prevents incorrect module insertion
- Dual mechanical keys provide 36 configuration options
Technical Specifications
- Type: Module Termination Unit (MTU)
- Channels: Up to 16
- Voltage Rating: Up to 250 V
- Current per Channel: Max. 3 A
-
Wire Size Compatibility:
- Solid: 0.2–4 mm²
- Stranded: 0.2–4 mm² (24–10 AWG)
- Dielectric Withstand Voltage: 2000 V AC
- Mounting: Horizontal or vertical on DIN rail
- Operating Temperature: 0 to +55 °C
- Storage Temperature: -40 to +70 °C
- Humidity: 5–95% non-condensing
- Certifications: CE, UL, 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: 126 mm (with connector), 120.5 mm edge-to-edge
- Depth: 64 mm
- Height: 110 mm
- Weight: 0.22 kg