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Product Overview
The ABB TU852 3BSE069964R1 is a 16-channel Module Termination Unit (MTU) designed for use with redundant S800 I/O modules. It is a passive interface used for field wiring connections and includes part of the ModuleBus for data transmission. The unit supports horizontal DIN rail mounting and ensures error-free installation through mechanical keying.
Key Applications
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Redundant I/O system integration
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Process automation systems
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Industrial control panels
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Distributed control systems (DCS)
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Power plant automation
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Chemical, oil & gas process systems
Product Advantages
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Supports redundant I/O connections
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16 field signal and process power channels
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Simple 3-wire field connection layout
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Built-in ModuleBus distribution and address shift
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Mechanical keying prevents misinstallation
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Certified for industrial and hazardous environments
Technical Specifications
| Parameter | Value |
|---|---|
| Article Number | 3BSE069964R1 |
| Channels | 16 |
| Voltage | 50 V |
| Max Current per Channel | 3 A |
| Max Current (Total) | 10 A |
| Dielectric Strength | 500 V AC |
| Mounting | Horizontal on DIN rail |
| Field Connection | 2 terminals per channel (DB25 connectors) |
| Compatible Modules | AI843, AO845A, DI840, DI880, DO840, DO880, DP840 |
| Dimensions (W x D x H) | 64 x 186.5 x 131 mm |
| Weight | 0.55 kg |
| Protection Class | IP20 (IEC 60529) |
| Operating Temperature | 0 to +55 °C |
| Storage Temperature | -40 to +70 °C |
| Relative Humidity | 5–95%, non-condensing |
| Certifications | CE, UL, EN, ATEX Zone 2 (pending), RoHS, WEEE |
FAQ
Q1: What is the purpose of the TU852 module?
A1: It connects field signals and power to redundant I/O modules and distributes ModuleBus signals.
Q2: How many channels does the TU852 support?
A2: It supports 16 channels.
Q3: Can TU852 be used with single I/O configurations?
A3: No, it is specifically designed for redundant I/O setups.
Q4: Which I/O modules are compatible with TU852?
A4: Compatible with AI843, AO845A, DI840, DI880, DO840, DO880, and DP840.
Q5: What type of connectors are used?
A5: Two 25-pin D-sub connectors (male) are used.
Q6: What is the operating temperature range?
A6: 0 to +55 °C, with approval issued for +5 to +55 °C.
Q7: What certifications does it comply with?
A7: CE, UL, EN standards, RoHS, WEEE, and ATEX Zone 2 (pending).
Q8: What is the maximum current capacity?
A8: 3 A per channel, with a total of up to 10 A for process connections.
Q9: Does TU852 support DIN rail mounting?
A9: Yes, it is designed for horizontal DIN rail mounting.
Q10: Is TU852 suitable for corrosive environments?
A10: Yes, it has corrosion protection according to ISA-S71.04 G3.
Related ABB S800 I/O Models
| Model | Description | Channels | Dimensions (mm) | Weight |
|---|---|---|---|---|
| TU851 | Module Termination Unit (non-redundant) | 16 | 64 x 186.5 x 131 | 0.50 kg |
| TU853 | Extended MTU with diagnostics | 16 | 64 x 186.5 x 131 | 0.60 kg |
| TU854 | Redundant MTU with diagnostics | 16 | 64 x 186.5 x 131 | 0.62 kg |
| TU855 | High-speed redundant MTU | 8 | 64 x 186.5 x 131 | 0.58 kg |
| TU860 | MTU for analog high-density modules | 32 | 64 x 186.5 x 131 | 0.57 kg |
| TU865 | Redundant field power MTU | 16 | 64 x 186.5 x 131 | 0.56 kg |
Popular ABB Automation Models
| Model | Description | Function Type | Dimensions (mm) | Weight |
|---|---|---|---|---|
| AI843 | Analog Input Module | 8 channels, HART | 64 x 186.5 x 131 | 0.52 kg |
| AO845A | Analog Output Module | 8 channels, HART | 64 x 186.5 x 131 | 0.53 kg |
| DI840 | Digital Input Module | 16 channels | 64 x 186.5 x 131 | 0.50 kg |
| DO840 | Digital Output Module | 16 channels | 64 x 186.5 x 131 | 0.51 kg |
| PM865 | Processor Module | CPU & control | 130 x 186.5 x 131 | 1.20 kg |
| CI854AK01 | Communication Interface (PROFIBUS) | Interface Module | 64 x 186.5 x 131 | 0.45 kg |
