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ABB TU840 3BSE020846R1 Termination Unit
Details of the module
Manufacturer : ABB
Product No : 3BSE020846R1
Product type : TU840 Termination Unit
Type : Redundant TB840/TB840A, Redundant I/O, Single Power
Power input : 24 V d.c (19.2 -30 V)
ModuleBus current distribution : Maximum 5 V 1.5 A,24 V 1.5 A
Mechanical Keys : 36 different combinations
Rated insulation voltage : 50 V
Dialectic test voltage : 500 V a.c
Power dissipation : 2.0 W
Temperature, Operating : 55° C (131° F) horizontal mounted. 40° C (104° F) vertical mounted
Temperature, Storage : -25° C (-13° F) to +70° C (158° F)
Dimensions (LxWxH), approx : 4.7cm x 12.4cm x 18.6cm
Weight : 0.45 Kg
Shipping Weight : 1.5 Kg
The TU840 is a module termination unit (MTU) for redundant configuration of Optical ModuleBus Modem
TB840/TB840A.
The MTU is a passive unit having connections for power supply, double electrical ModuleBus, two TB840/TB840A
and a rotary switch for cluster address (1 to 7) setting.
Four mechanical keys, two for each position, are used to configured the MTU for the right types of modules. Each
key has six positions, which gives a total number of 36 different configurations. The configurations can be changed
with a screwdriver.
Termination Unit TU840 connects TB840/TB840A to redundant I/O. Termination Unit TU841 connects TB840/TB840A
to non-redundant I/O.
Frequently asked questions：
Q1: What is the ABB TU840 3BSE020846R1?
A: The ABB TU840 3BSE020846R1 is a termination unit used in ABB S800 I/O systems to connect field devices
to I/O modules safely and efficiently.
Q2: What is the TU840 3BSE020846R1 rated insulation voltage?
A: The TU840 3BSE020846R1 rated insulation voltage of the unit is 50 V.
Q3: What dielectric strength does this unit support?
A: It supports a dielectric test voltage of 500 V AC, ensuring reliable electrical isolation.
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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