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ABB 3BSE039025R1 TU807

ABB 3BSE039025R1 TU807 is a Module Termination Unit (MTU) used in the ABB S800 I/O System. It is designed for single configuration of the Optical ModuleBus Modem TB840/TB840A, providing the electrical interface, power connections, and mechanical mounting required for S800 I/O communication installations.

1. Product Identification

2. Functional Description

The TU807 is a passive termination/base unit that provides the connection platform for an Optical ModuleBus Modem (TB840/TB840A). It includes:

• Power supply connections
• One electrical ModuleBus connection
• Mounting interface for one TB840/TB840A modem
• Rotary switch for cluster address selection (1–7)
• Mechanical keying to prevent incorrect module insertion
• DIN rail locking and grounding mechanism

3. Technical Parameters

4. Mechanical Data

5. Environmental Specifications

• Operating temperature: 0 to +55 °C (depending on mounting orientation and approvals)
• Storage temperature: -40 to +70 °C
• Relative humidity: 5–95%, non-condensing
• Certifications:
  • CE marking
  • IEC/EN electrical safety compliance
  • cULus Hazardous Location Class 1 Zone 2
  • ATEX Zone 2
  • RoHS / WEEE compliance

6. Application Fields

ABB TU807 is commonly used in:

• Process control systems
• Power generation plants
• Oil & gas facilities
• Chemical and petrochemical automation
• Water treatment systems
• Industrial manufacturing plants using ABB System 800xA

Typical installation combination:

Controller → ModuleBus → TB840/TB840A Optical Modem → TU807 → S800 I/O modules

7. Key Features

• Compact DIN-rail mounting design
• Supports ABB optical ModuleBus communication
• Simple single-channel I/O configuration
• Robust industrial environmental ratings
• Mechanical protection against incorrect module installation
• Compatible with ABB S800 I/O architecture

8. Related ABB Components

Summary:
The ABB TU807 (3BSE039025R1) is a reliable S800 I/O Module Termination Unit intended for single Optical ModuleBus modem installations, providing the physical and electrical interface between ABB controllers and distributed I/O systems. It is widely used in ABB System 800xA process automation environments.