EN
- Overview
- Specifications
- Description
- Environment and certification
- Applications
- Features and benefits
- FAQ
- Recommended Products
Overview
Place of Origin: |
Sweden |
Brand Name: |
ABB |
Model Number: |
TU842 3BSE020850R1 |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
5-7 days |
Payment Terms: |
T/T |
Supply Ability: |
In stock |
Specifications
|
Parameter |
Value |
|
Model |
TU842 3BSE020850R1 |
|
Type |
Redundant |
|
Connection |
Terminal block |
|
Channels |
16 |
|
Voltage |
50 V |
|
Mounting |
Horizontal |
|
Mounting detail |
55 º (131 °F) |
|
Compatible I/O |
AI843, AO845, AO845A, DI840, DI880, DO840, DO880, DP840 |
|
Process connections |
56 up to 16 I/O channels (2 terminals per channel), 4 Process power, 20 Process power (0 V) |
|
Single/redundant I/O |
Redundant |
|
Max current per I/O channel |
3 A |
|
Max current process connection |
10 A |
|
Acceptable wire sizes |
Solid: 0.2 - 4 mm²; Stranded: 0.2 - 2.5 mm², 24 - 12 AWG |
|
Recommended torque |
0.5 - 0.6 Nm |
|
Stripping length |
7 mm |
|
Dielectric test voltage |
500 V a.c. |
|
Width |
131 mm (5.16”) including connector, 124 mm (4.88”) edge to edge installed |
|
Depth |
64 mm (2.52”) including terminals |
|
Height |
186.5 mm (7.34”) including locking device |
|
Weight |
0.6 kg (1.3 lbs.) |
Description
The TU842 3BSE020850R1 MTU can have up to 16 I/O channels and 2+2 process voltage connections. Each channel has two I/O connections and one ZP connection. The maximum rated voltage is 50 V and maximum rated current is 3 A per channel.
The MTU distributes the two ModuleBuses to each I/O module and to the next MTU. It also generates the correct address to the I/O modules by shifting the outgoing position signals to the next MTU.
The MTU can be mounted on a standard DIN rail. It has a mechanical latch that locks the MTU to the DIN rail.
Four mechanical keys, two for each I/O module, are used to configure the MTU for different types of I/O modules. This is only a mechanical configuration and it does not affect the functionality of the MTU or the I/O module. Each key has six positions, which gives a total number of 36 different configurations.
Environment and certification
|
Parameter |
Value |
|
CE mark |
Yes |
|
Electrical safety |
EN 61010-1, UL 61010-1, EN 61010-2-201, UL 61010-2-201 |
|
Hazardous Location |
C1 Div 2 cULus, C1 Zone 2 cULus, ATEX Zone 2 |
|
Marine certification |
ABS, BV, DNV-GL, LR |
|
Temperature, Operating |
0 to +55 °C (+32 to +131 °F), approvals are issued for +5 to +55 °C |
|
Temperature, Storage |
-40 to +70 °C (-40 to +158 °F) |
|
Pollution degree |
Degree 2, IEC 60664-1 |
|
Corrosion protection |
ISA-S71.04: G3 |
|
Relative humidity |
5 to 95 %, non-condensing |
|
Max ambient temperature |
55 °C (131 °F) |
|
Protection class |
IP20 according to IEC 60529 |
|
Mechanical operating conditions |
IEC/EN 61131-2 |
|
EMC |
EN 61000-6-4, EN 61000-6-2 |
|
Overvoltage categories |
IEC/EN 60664-1, EN 50178 |
|
Equipment class |
Class I according to IEC 61140 (earth protected) |
|
RoHS compliance |
EN 50581:2012 |
|
WEEE compliance |
DIRECTIVE/2012/19/EU |
Applications
Features and benefits
Complete installation of I/O modules using 3-wire connections and field power distribution.
Up to 16 channels of field signals and process power connections.
Connections to two ModuleBuses and I/O modules.
Mechanical keying prevents insertion of the wrong I/O module.
Latching device to DIN rail for grounding.
DIN rail mounting.
FAQ
Q: Can the TU842 3BSE020850R1 directly replace a non-redundant MTU?
A: It is designed for redundancy and features dual ModuleBus connections. While it can be used, it is recommended to use a redundant module for maximum cost-effectiveness.
Q: Will mismatched mechanical keys on the TU842 3BSE020850R1 cause circuit burnout?
A: No, it is mechanically isolated. If the keying is incorrect, the module cannot be fully inserted and make contact with the conductive pins.
Q: What is the maximum ambient temperature for the TU842 3BSE020850R1 when installed in a factory cabinet?
A: The maximum operating ambient temperature is 55 °C. Good ventilation and heat dissipation within the cabinet are recommended.
Q: What size factory wiring cable does the TU842 3BSE020850R1 support?
A: Compatible with 0.2 - 4 mm² solid wire or 0.2 - 2.5 mm² (24 - 12 AWG) multi-strand wire.
Q: Does the TU842 3BSE020850R1 require separate configuration software?
A: No, it's purely a physical wiring unit. The logic configuration is done in the controller (such as AC 800M) or related I/O modules.
