Products Specifications
| Attribute | Specification |
|---|---|
| Article Number | 3BSE020850R1 |
| Type | Redundant |
| Connection | Terminal block |
| Channels | 16 |
| Voltage | 50 V |
| Mounting | Horizontal |
| Mounting Detail | 55 ° (131 °F) |
| Use with I/O | AIB43, AO845, AO845A, DI840, DI880, DO840, DO880 and 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 |
The TU842 MTU (Module Termination Unit) is designed to support up to 16 I/O channels along with 2+2 process voltage connections, providing flexible and efficient field wiring integration. Each individual channel includes two I/O terminals and one ZP connection, ensuring reliable signal and power distribution. The unit supports a maximum rated voltage of 50 V and a maximum rated current of 3 A per channel, making it suitable for a wide range of industrial applications.
This MTU distributes the two ModuleBuses to each connected I/O module and continues the bus connection to the next MTU in the system. It also automatically assigns the correct address to each I/O module by shifting the outgoing position signals to the subsequent MTU, simplifying system configuration and expansion.
Contact Information
Our address
32D floor, Guomao Building, No.388, Hubin South Road, Siming District, Xiamen
Phone Number(Wechat/Whatspp)
+ 86 18030132586
cn@mooreplc.com
Features and Benefits
1. Complete installation of I/O modules using 3-wire connections and field power distribution.
2. Up to 16 channels of field signals and process power connections.
3. Connections to two ModuleBuses and I/O modules.
4. Mechanical keying prevents insertion of the wrong I/O module.
5. Latching device to DIN rail for grounding.
6. DIN rail mounting.
FAQ
The ABB TU842 (Article Number 3BSE020850R1) is a redundant terminal block (MTU – Module Termination Unit) designed to support up to 16 I/O channels and distribute ModuleBus connections in ABB control systems.
The TU842 supports up to 16 I/O channels, with each channel providing two I/O terminals and one ZP connection.
The maximum rated voltage is 50 V, and the maximum rated current is 3 A per channel.
The TU842 is mounted horizontally on a standard DIN rail and features a mechanical latch that securely locks it into place.
The TU842 can be used with AIB43, AO845, AO845A, DI840, DI880, DO840, DO880, and DP840 I/O modules.
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