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ABB TU891 3BSC840157R1 Module Termination Unit
Details of the module
Article number: 3BSC840157R1
Type: Compact
Connection: Terminal block
Channels: 8
Voltage: 24 V
Mounting: Horizontal
Mounting detail: 55 ºC (131 °F)
Use with I/O: AI890, AI893, AI895, AO890, AO895, DI890, DO890
Process connections: 27 gray terminals
Single/redundant I/O: Single
The TU891 MTU has gray terminals for field signals and process voltage connections. The maximum rated voltage
is 50 V and maximum rated current is 2 A per channel, but these are primarily constrained to specific values by the
design of the I/O modules for their certified application. The MTU distributes the ModuleBus to the I/O module and
to the next MTU. It also generates the correct address to the I/O module by shifting the outgoing position signals to
the next MTU.
Two mechanical keys are used to configure the MTU for different types of I.S. I/O modules. This is only a
mechanical configuration and it does not affect the functionality of the MTU or the I/O module. The keys used
on the TU891 are of the opposite gender to those on any other type of MTU and will mate only with IS I/O modules.
Frequently asked questions:
Q1: What is the ABB TU891 3BSC840157R1?
A: The ABB TU891 3BSC840157R1 is a Module Termination Unit (MTU) designed for ABB S800 I/O
systems, providing reliable field wiring and signal connection for I/O modules.
Q2: How many channels does the ABB TU891 3BSC840157R1 support?
A: It supports 8 channels.
Q3: What is the TU891 3BSC840157R1 rated operating voltage?
A: The TU891 3BSC840157R1 unit operates at a rated voltage of 24 V DC.
Extra Discount - Contact Lisa Lin
WhatsApp:+86 18965423501 Email:sales7@amikon.cn 

WeChat:AMKPLC
Payment & Delivery
Payment Term: T/T
Lead Time: Usually 2-3 days
Delivery Ways: DHL,UPS,TNT,CHIRLINE,FEDEX
Supporting services
1. The products quoted are brand new and original with a one-year warranty
2. Prices are ex works, for shipping calculations, Please send to my Email
3. Cooperation with the express delivery of DHL / Fedex / UPS / Aramex, etc,Delivery time is approximately
'' 5 days '' from our warehouse to the destination country
4. Quotation validity: 30 days, if you need to extend, please reconfirm the price after 30 days.
5. Payment Term: 100% advance payment by bank transfer.
6. For the products '' in stock '' in the offer, our company can support video inspectio.
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