ABB TU851 3BSE068782R1 16-Channel Termination Module

ABB 3BSE068782R1 TU851 Module Termination Unit

The ABB 3BSE068782R1 is a versatile and robust termination unit for industrial control wiring. This module, designated as the TU851, offers a reliable interface for digital I/O signals. 

Core Product Identification

• Manufacturer & Part Code: ABB 3BSE068782R1
• Product Series: TU851 Module Termination Unit (MTU)
• Primary Function: Signal Termination for Single I/O Modules
• Mounting Flexibility: DIN Rail Mountable in Both Directions

Electrical Ratings & Performance

• Channel Configuration: 16 Independent Single I/O Channels
• Maximum Working Voltage: 250 Volts AC/DC
• Current Rating per Channel: 3 Amperes Maximum
• Terminal Capacity: 32 Process Connections for 16 I/O Channels
• Thermal Specification: Rated for Continuous Use at 55°C (131°F)

Physical Characteristics & Dimensions

• Unit Width (Overall): 126 mm (5.0 inches)
• Unit Width (Edge-to-Edge): 120.5 mm (4.74 inches)
• Unit Depth: 64 mm (2.52 inches)
• Unit Height: 110 mm (4.3 inches)

Wiring & Compatibility Details

• Compatible Wire Sizes (Solid): 0.2 mm² to 4.0 mm²
• Compatible Wire Sizes (Stranded): 0.2 mm² to 4.0 mm² (24-10 AWG)
• Supported I/O Modules: DI820, DI821, DI825, DI828, DO820, DO821, DO828
• Safety Keying: Mechanical Keying Prevents Incorrect Module Insertion
• Grounding Feature: Integrated Latching Device for Secure Ground Connection

Installation & Setup Procedure

• Choose a suitable location on a standard DIN rail inside your control panel.
• Snap the termination unit onto the rail, orienting it horizontally or vertically.
• Prepare your field wires by stripping them to the recommended length.
• Insert the wires into the appropriate screw terminals and tighten securely.
• Connect the flat ribbon cable from the termination unit to the I/O module.
• Engage the mechanical key and latching device to ensure a proper connection.

Package Contents

• One (1) ABB 3BSE068782R1 TU851 Termination Unit.
• One (1) set of DIN rail clips and mounting accessories.
• One (1) user manual with wiring diagrams and safety instructions.

Shipping & Delivery Options

• Orders are packed securely and shipped from our distribution center.
• We offer reliable global shipping via FedEx, UPS, and DHL couriers.
• Full tracking information is provided upon shipment dispatch.

Frequently Asked Questions (FAQ)

• Q: What does "DIN rail, both directions" mean?
  A: It means you can mount the unit on the rail either horizontally or vertically, depending on your panel layout.
• Q: What is the purpose of the 2000V dielectric test rating?
  A: This high rating ensures excellent electrical isolation and safety, protecting against voltage surges.
• Q: Can I use this with both digital input and output modules?
  A: Yes, the TU851 is compatible with the listed ABB digital input (DI) and digital output (DO) modules.