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SKU:TU891
TU891 ABB 3BSC840157R1 Module Terminal Unit 8 Channels
Manufacturer: ABB
Product No.: TU891
Product Type: Terminal Block
Product Origin: SE
Payment:T/T, Western Union
Weight: 170g
Shipping port: Xiamen
Warranty: 12 months
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Description
ABB TU891 Module Terminal Unit
The ABB TU891 is a horizontal mount module terminal unit for industrial systems. It provides 8 channels for signal connection and control. This unit uses model identification 3BSC840157R1.
Technical Specifications
- Brand & Model: ABB TU891 (3BSC840157R1)
- Type: Module Terminal Unit (MTU)
- Mounting: Horizontal orientation
- Channels: 8 connection channels
- Voltage: 24VDC nominal
- Max Voltage: 50VDC rated
- Current: 2A maximum per channel
- Dielectric Test: 500V AC withstand
- Dimensions: 64mm × 194mm × 58mm (2.52" × 7.64" × 2.28")
- Terminal Depth: 106mm (4.17") including terminals
- Weight: 0.17 kg (0.37 lbs)
- Operating Temp: Up to 55°C (131°F)
- Power Wire: 0.25–2.5mm² (24–14 AWG)
- Process Wire Solid: 0.2–4mm²
- Process Wire Stranded: 0.2–2.5mm² (24–12 AWG)
Key Features
- 8-channel terminal unit
- Horizontal mounting design
- 24VDC nominal operation
- 2A maximum current per channel
- 500V AC dielectric test rating
- Lightweight 0.17 kg construction
- Wide wire size compatibility
- Compact dimensions for space saving
- High temperature operation to 55°C
- Maximum 50VDC voltage rating
Electrical Specifications
- Nominal voltage: 24VDC
- Maximum voltage: 50VDC
- Current rating: 2A per channel
- Dielectric strength: 500V AC test
- Power supply wire: 0.25–2.5mm²
- Process wire solid: 0.2–4mm²
- Process wire stranded: 0.2–2.5mm²
- 8 independent channels
Mechanical Specifications
- Width: 64mm including connector
- Height: 194mm including latch
- Depth: 58mm base (106mm with terminals)
- Weight: 0.17 kg lightweight
- Mounting: Horizontal orientation
- Terminal access: Front connection
Wire Compatibility
- Power connector: 24–14 AWG (0.25–2.5mm²)
- Process solid wire: 0.2–4mm²
- Process stranded wire: 12–24 AWG (0.2–2.5mm²)
- Flexible wiring options
- Standard industrial wire sizes
FAQ
Q: How many channels does this unit have?
A: The ABB TU891 provides 8 connection channels for industrial applications.
Q: What is the weight of the unit?
A: The unit weighs only 0.17 kg (0.37 lbs) for easy installation.
Q: What wire sizes are supported?
A: It supports 24-14 AWG for power and 24-12 AWG for process connections.
Contact
For pricing and availability of the ABB TU891 terminal unit:
Email: sale@etowonauto.com
Additional Specifications
- White
- Geometric
Scalar (V/f)
Vector
AC-powered
Buying Guide
- Confirm the exact model, part number, and specifications before ordering.
- Ensure compatibility with your current machinery or control systems.
- Reach out via sale@etowonauto.com or +8617859788089 for technical assistance.
- Review delivery options, lead times, and shipping requirements.
- Follow manufacturer instructions and best practices during installation.
Shipping And Return
In-stock items are typically dispatched the same business day. For products not currently in stock, dispatch times may vary based on availability. International shipping is available, and shipping costs are calculated according to destination, weight, and carrier selection.
Returns are accepted within 30 days of receipt, provided items are unused and in original condition. Return shipping costs are the responsibility of the customer. Please contact us before returning any item to receive return authorization.
For more details, please review our Shipping & Return Policy.

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