Description

ABB TU841 3BSE020848R1 Module Termination Unit (MTU)

ABB SM811K01 3BSE018173R1 Safety CPU Module

Overview

The ABB TU841 (3BSE020848R1) is a module termination unit (MTU) for connecting to the fiber-optic ModuleBus modem TB840/TB840A.

This passive unit features a power connection, a single electrical module bus interface, two TB840/TB840A connection interfaces, and a rotary switch for setting the cluster address (1 to 7).

As a passive unit, the ABB TU841 provides power distribution, ModuleBus signal transmission, and module type identification.

🚀Function & Features

Interface Expansion: The ABB TU841 supports a single electrical ModuleBus connection and features two TB840/TB840A fiber optic modem interfaces.

Address Configuration: The TU841 has a built-in rotary switch (1-7) for setting the cluster address to avoid bus conflicts.

Module Type Identification: The ABB TU841 uses four mechanical keys (two on each side, for a total of six positions) to identify the module type, supporting 36 configuration combinations that can be adjusted using a screwdriver.

Specifications

Parameter	Details
Model	TU841
Article number	3BSE020848R1
Communication protocol	Modulebus
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
Width	124 mm (4.88 in.)
Height	186 mm (7.32 in.) including latch
Depth	47 mm (1.85 in.)
Weight	0.45 kg (0.99 lbs.)

Questions & Answers

💡 FAQ

Q: What is the brand?

A: ABB

Q: What is the type?

A: Module Termination Unit (MTU)

Q: What is the warranty?

A: 1 year

Q: Where is the shipping location?

A: Xiamen

Q: What is the payment method?

A: T/T

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