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ABB TU891 3BSC840157R1 S800 I/O Module Termination Unit
Manufacturer:ABB
Product Number:TU891 3BSC840157R1
Product Type:Module Termination Unit
Origin:Sweden (SE)
Dimensions:64 x 194 x 58 mm
Weight:0.17 kg
Views:68
Payment Methods:T/T, PayPal, Western Union
Condition:New & In Stock
Warranty:1 Year
Lead Time:1-3 Working Days
Certificate:COO
Courier partners:DHL, UPS, TNT, FedEx and EMS.
Business hours:7*24
Product Description
The ABB TU891 3BSC840157R1 is a compact Termination Unit (MTU) used within the S800 I/O system. It enables mechanical and electrical interfacing between the I/O modules and field wiring. Designed for use with intrinsically safe (IS) analog and digital modules, it ensures proper signal distribution, ModuleBus extension, and mechanical keying for safety-critical installations.
Technical Specifications
| Parameter | Description |
|---|---|
| Article Number | 3BSC840157R1 |
| Type | Compact |
| Channels | 8 |
| Voltage | 24 V |
| Max. Current per Channel | 2 A |
| Dielectric Test Voltage | 500 V AC |
| Dimensions (W x H x D) | 64 x 194 x 58 mm |
| Weight | 0.17 kg |
| Mounting | Horizontal, DIN rail |
| Process Connectors | 27 gray terminals |
| Supported Modules | AI890, AI893, AI895, AO890, AO895, DI890, DO890 |
| Ambient Temperature | 0°C to +55°C (Operation), -40°C to +70°C (Storage) |
| Protection Class | IP20 |
| Wire Sizes (Solid) | 0.2 – 4 mm² |
| Wire Sizes (Stranded) | 0.2 – 2.5 mm², 24–12 AWG |
| Certifications | CE, RoHS, WEEE, ABS, BV, DNV-GL, LR |
| EMC Compliance | EN 61000-6-2, EN 61000-6-4 |
| Safety Standards | IEC 61131, EN 61010-1, EN 61010-2-201 |
Applications
-
Intrinsically safe (IS) analog and digital I/O interfacing
-
Distributed control systems using ABB’s 800xA
-
Oil & Gas and Petrochemical automation systems
-
Power generation control systems
-
Marine and offshore automation environments
Advantages
-
Supports IS-rated modules for hazardous areas
-
Compact and efficient DIN rail mounting
-
Mechanical keying ensures correct module insertion
-
Provides reliable signal distribution and bus extension
-
CE, marine, and industrial certifications for wide applicability
-
Robust design suitable for harsh environments
Frequently Asked Questions (FAQ)
Q1: What modules are compatible with the TU891?
A1: Compatible modules include AI890, AI893, AI895, AO890, AO895, DI890, and DO890.
Q2: What is the maximum rated voltage and current per channel?
A2: The unit supports up to 50 V and 2 A per channel.
Q3: Can the TU891 be used in hazardous environments?
A3: Yes, it is designed for intrinsically safe I/O modules used in hazardous areas.
Q4: How is the TU891 mounted?
A4: It is DIN rail-mounted horizontally.
Q5: What wire sizes are supported?
A5: Solid wires 0.2–4 mm², stranded wires 0.2–2.5 mm² (24–12 AWG).
Q6: What certifications does the TU891 hold?
A6: CE, RoHS, WEEE, and marine certifications like ABS, BV, DNV-GL, and LR.
Q7: Does the TU891 include mechanical keying?
A7: Yes, it prevents incorrect module insertion using mechanical keys.
Q8: What is the operating temperature range?
A8: From 0°C to +55°C during operation and -40°C to +70°C in storage.
Q9: Is the TU891 suitable for redundant I/O setups?
A9: No, it supports single I/O configurations only.
Q10: What is the protection rating of this unit?
A10: It has an IP20 rating according to IEC 60529.
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ABB TU891 3BSC840157R1 S800 I/O Module Termination Unit
Manufacturer:ABB
Product Number:TU891 3BSC840157R1
Product Type:Module Termination Unit
Origin:Sweden (SE)
Dimensions:64 x 194 x 58 mm
Weight:0.17 kg
Views:68
Payment Methods:T/T, PayPal, Western Union
Condition:New & In Stock
Warranty:1 Year
Lead Time:1-3 Working Days
Certificate:COO
Courier partners:DHL, UPS, TNT, FedEx and EMS.
Business hours:7*24
Product Description
The ABB TU891 3BSC840157R1 is a compact Termination Unit (MTU) used within the S800 I/O system. It enables mechanical and electrical interfacing between the I/O modules and field wiring. Designed for use with intrinsically safe (IS) analog and digital modules, it ensures proper signal distribution, ModuleBus extension, and mechanical keying for safety-critical installations.
Technical Specifications
| Parameter | Description |
|---|---|
| Article Number | 3BSC840157R1 |
| Type | Compact |
| Channels | 8 |
| Voltage | 24 V |
| Max. Current per Channel | 2 A |
| Dielectric Test Voltage | 500 V AC |
| Dimensions (W x H x D) | 64 x 194 x 58 mm |
| Weight | 0.17 kg |
| Mounting | Horizontal, DIN rail |
| Process Connectors | 27 gray terminals |
| Supported Modules | AI890, AI893, AI895, AO890, AO895, DI890, DO890 |
| Ambient Temperature | 0°C to +55°C (Operation), -40°C to +70°C (Storage) |
| Protection Class | IP20 |
| Wire Sizes (Solid) | 0.2 – 4 mm² |
| Wire Sizes (Stranded) | 0.2 – 2.5 mm², 24–12 AWG |
| Certifications | CE, RoHS, WEEE, ABS, BV, DNV-GL, LR |
| EMC Compliance | EN 61000-6-2, EN 61000-6-4 |
| Safety Standards | IEC 61131, EN 61010-1, EN 61010-2-201 |
Applications
-
Intrinsically safe (IS) analog and digital I/O interfacing
-
Distributed control systems using ABB’s 800xA
-
Oil & Gas and Petrochemical automation systems
-
Power generation control systems
-
Marine and offshore automation environments
Advantages
-
Supports IS-rated modules for hazardous areas
-
Compact and efficient DIN rail mounting
-
Mechanical keying ensures correct module insertion
-
Provides reliable signal distribution and bus extension
-
CE, marine, and industrial certifications for wide applicability
-
Robust design suitable for harsh environments
Frequently Asked Questions (FAQ)
Q1: What modules are compatible with the TU891?
A1: Compatible modules include AI890, AI893, AI895, AO890, AO895, DI890, and DO890.
Q2: What is the maximum rated voltage and current per channel?
A2: The unit supports up to 50 V and 2 A per channel.
Q3: Can the TU891 be used in hazardous environments?
A3: Yes, it is designed for intrinsically safe I/O modules used in hazardous areas.
Q4: How is the TU891 mounted?
A4: It is DIN rail-mounted horizontally.
Q5: What wire sizes are supported?
A5: Solid wires 0.2–4 mm², stranded wires 0.2–2.5 mm² (24–12 AWG).
Q6: What certifications does the TU891 hold?
A6: CE, RoHS, WEEE, and marine certifications like ABS, BV, DNV-GL, and LR.
Q7: Does the TU891 include mechanical keying?
A7: Yes, it prevents incorrect module insertion using mechanical keys.
Q8: What is the operating temperature range?
A8: From 0°C to +55°C during operation and -40°C to +70°C in storage.
Q9: Is the TU891 suitable for redundant I/O setups?
A9: No, it supports single I/O configurations only.
Q10: What is the protection rating of this unit?
A10: It has an IP20 rating according to IEC 60529.
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