Excellent PLC
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
ABB TU891 3BSC840157R1 S800 I/O Module Termination Unit
- Product Details
- FAQs
- Related
- Contact Us
- Packing & Delivery
- Product Ratings
Product Overview
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.
Related Models from the Same Series
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| TU810 | Compact MTU | 64 x 194 x 58 | 0.17 kg |
| TU830V1 | Extended MTU with pluggable terminals | 110 x 230 x 63 | 0.24 kg |
| TU812V1 | MTU with relay socket support | 64 x 194 x 58 | 0.17 kg |
| TU851V1 | High integrity MTU | 64 x 194 x 58 | 0.18 kg |
| TU890 | IS MTU for S800 I/O | 64 x 194 x 58 | 0.17 kg |
| TU892 | IS MTU with dual I/O connections | 64 x 194 x 58 | 0.18 kg |
Popular ABB Models
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| AI890 | Analog Input Module IS, 8 ch | 87 x 107 x 59 | 0.20 kg |
| AO895 | Analog Output Module IS, 4 ch | 87 x 107 x 59 | 0.22 kg |
| DI890 | Digital Input Module IS, 8 ch | 87 x 107 x 59 | 0.20 kg |
| DO890 | Digital Output Module IS, 8 ch | 87 x 107 x 59 | 0.21 kg |
| PM861K01 | Controller Processor Unit Kit | 197 x 140 x 80 | 1.10 kg |
| CI854AK01 | Profibus DP Communication Interface | 87 x 107 x 59 | 0.20 kg |
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.
Related Models from the Same Series
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| TU810 | Compact MTU | 64 x 194 x 58 | 0.17 kg |
| TU830V1 | Extended MTU with pluggable terminals | 110 x 230 x 63 | 0.24 kg |
| TU812V1 | MTU with relay socket support | 64 x 194 x 58 | 0.17 kg |
| TU851V1 | High integrity MTU | 64 x 194 x 58 | 0.18 kg |
| TU890 | IS MTU for S800 I/O | 64 x 194 x 58 | 0.17 kg |
| TU892 | IS MTU with dual I/O connections | 64 x 194 x 58 | 0.18 kg |
Popular ABB Models
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| AI890 | Analog Input Module IS, 8 ch | 87 x 107 x 59 | 0.20 kg |
| AO895 | Analog Output Module IS, 4 ch | 87 x 107 x 59 | 0.22 kg |
| DI890 | Digital Input Module IS, 8 ch | 87 x 107 x 59 | 0.20 kg |
| DO890 | Digital Output Module IS, 8 ch | 87 x 107 x 59 | 0.21 kg |
| PM861K01 | Controller Processor Unit Kit | 197 x 140 x 80 | 1.10 kg |
| CI854AK01 | Profibus DP Communication Interface | 87 x 107 x 59 | 0.20 kg |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.
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