TU812V1 ABB S800 I/O Module Termination Unit 3BSE013232R1 16 Ch 50V

Product Overview

The ABB TU812V1 (3BSE013232R1) is a compact Module Termination Unit for the S800 I/O system. It connects field wiring to I/O modules via a 25‑pin D‑sub connector. Designed for 16 channels at 50V, it ensures reliable signal distribution in industrial environments.

Key Features & Benefits

• Compact design saves panel space – only 64mm wide.
• Mechanical keying prevents wrong I/O module insertion.
• DIN rail mounting with latching device for secure grounding.
• Supports 16 I/O signals via one 25‑pin D‑sub connector.
• Wide compatibility with AI, AO, DI, DO, DP series modules.

Technical Specifications

Brand & Series
  ├─ Brand: ABB (ASEA Brown Boveri)
  ├─ Series: S800 I/O
  └─ Model: TU812V1 (3BSE013232R1)

Type & Configuration
  ├─ Type: Compact Module Termination Unit (MTU)
  ├─ Connection: 25‑pin D‑sub (male)
  ├─ Channels: 16
  ├─ Voltage: 50 V
  ├─ Mounting:
  │   ├─ Horizontal: 55 °C max ambient
  │   └─ Vertical: 40 °C max ambient
  └─ Mechanical keying: 2 keys x 6 positions = 36 configurations

Electrical Data
  ├─ Max current per I/O channel: 2 A
  ├─ Max current process connection: 5 A
  └─ Dielectric test voltage: 500 V a.c.

Compatible I/O Modules
  ├─ Analog Input: AI810, AI815, AI820, AI830, AI830A, AI835, AI835A, AI845
  ├─ Analog Output: AO810, AO810V2, AO815, AO820, AO845, AO845A
  ├─ Digital Input: DI810, DI811, DI814, DI830, DI831, DI840, DI880, DI885
  ├─ Digital Output: DO810, DO814, DO840, DO880
  └─ Pulse/Profibus: DP820, DP840

Environmental & Certification
  ├─ Operating temperature: 0 to +55 °C (+32 to +131 °F)
  │   └─ Approvals: +5 to +55 °C
  ├─ Storage temperature: -40 to +70 °C (-40 to +158 °F)
  ├─ Humidity: 5‑95% non‑condensing
  ├─ Pollution degree: 2 (IEC 60664-1)
  ├─ Corrosion protection: ISA‑S71.04 G3
  ├─ Protection class: IP20 (IEC 60529)
  ├─ Certifications:
  │   ├─ CE Mark: Yes
  │   ├─ Electrical safety: EN/UL 61010-1, EN/UL 61010-2-201
  │   ├─ Hazardous location: cULus C1 Div 2, C1 Zone 2, ATEX Zone 2
  │   ├─ Marine: ABS, BV, DNV-GL, LR
  │   ├─ RoHS: EN 50581:2012
  │   └─ WEEE: Directive 2012/19/EU
  └─ EMC: EN 61000-6-4, EN 61000-6-2

Mechanical
  ├─ Width: 64 mm (2.52 in) with connector / 58.5 mm installed
  ├─ Height: 170 mm (6.7 in) including latch
  ├─ Depth: 64 mm (2.52 in) including terminals
  └─ Weight: 0.17 kg (0.37 lbs)

Installation & Compatibility

• Mounting: DIN rail – use latching device for grounding.
• Field wiring: Connect via 25‑pin D‑sub (male) – up to 16 signals.
• ModuleBus: Pass‑through to next MTU – automatic address shifting.
• Mechanical keying: Set two keys to match I/O module type – prevents errors.
• Orientation: Horizontal (55°C max) or vertical (40°C max) mounting.

Diagnostics & Smart Features

• Passive design: No electronics – zero maintenance.
• Address generation: Automatically shifts position signals to next MTU.
• Latching device: Ensures proper grounding to DIN rail.
• Keying system: 36 unique combinations – avoids module mismatch.

Typical Applications

• Process automation – chemical, oil & gas plants.
• Power generation and water treatment.
• Marine and offshore installations (DNV-GL, ABS certified).
• Factory automation with S800 I/O systems.

Frequently Asked Questions

Q: What is the purpose of mechanical keying on TU812V1?

A: It prevents inserting the wrong I/O module. Set the two keys to match your module type – 36 combinations available. This avoids damage from mismatched modules.

Q: Can I use TU812V1 with redundant I/O configuration?

A: No. The TU812V1 is designed for single I/O only. For redundant setups, use TU812V1 with two separate I/O modules and appropriate termination units.

Q: What cable connects field wiring to this MTU?

A: Use a 25‑pin D‑sub male connector with suitable cable (not included). Maximum current per pin is 2 A, total 5 A per connector.

Q: How many TU812V1 units can I daisy‑chain?

A: Limited by ModuleBus capacity. In practice, follow S800 I/O guidelines – typically up to 12 modules per bus segment. Address shifting works automatically.

Q: Is this unit compatible with 24V DC I/O modules?

A: Yes. TU812V1 is rated for 50V, so it works with 24V, 48V, and other voltages up to 50V. Check your I/O module compatibility list.

Q: What is the warranty period?

A: 12 months from delivery against defects. We ship worldwide via FedEx, UPS, DHL – fully tracked and insured.

Q: Can I mount it vertically in a hot environment?

A: Yes, but max ambient temperature drops to 40°C for vertical mounting. Horizontal allows 55°C.

Selection Guidance

• Choose TU812V1 for 16‑channel 50V applications with single I/O.
• Verify I/O module type – supports AI, AO, DI, DO, DP series listed.
• For marine use, certifications ABS, BV, DNV-GL, LR are included.
• Order D‑sub cables separately – not included.
• Set mechanical keys during installation – prevents future errors.

Package & Warranty

• Includes: TU812V1 termination unit, mounting instructions.
• Warranty: 12 months – defects covered.
• Shipping: FedEx, UPS, DHL – fast global delivery with tracking.

Contact & Support

• Email: sales@powergearx.com
• WhatsApp: +86 18030005825
• Technical support for S800 I/O integration and setup – we help!

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