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Description
The TU836/TU836V1 is an 8-channel, 250V Extended Module Termination Unit (MTU) designed for the ABB S800 I/O system. This passive unit connects the field wiring to the I/O modules and includes part of the ModuleBus. The TU836 can support up to 8 I/O channels, with a maximum rated voltage of 250V and a maximum current of 3A per channel.
The MTU distributes the ModuleBus to the I/O module and the next MTU while also generating the correct address for the I/O module by shifting outgoing position signals.
The unit mounts easily on a standard DIN rail and includes a mechanical latch to lock the MTU in place. The latch can be released with a screwdriver. The MTU uses mechanical keys to configure the unit for different types of I/O modules, with 36 possible configurations.
The process signal terminals are divided into two groups, with each group containing 4 I/O connections and a process voltage connection. Each channel features a fused load outlet terminal and a signal return connection.
Features
- 250 Volt Applications: Compatible with DO820 and DO821 I/O modules.
- Dual Group Design: The process signal connections are divided into two equal, individually isolated groups.
- Fused Load Power Terminals: Each channel features a fused load power terminal and signal return.
- Process Voltage Distribution: The unit provides process voltage connections in two isolated groups.
- ModuleBus Connections: Distributes signals and power between I/O modules.
- Mechanical Keying: Prevents incorrect I/O module insertion.
- DIN Rail Mounting: Latches securely to the DIN rail for grounding and stability.
Technical Data
| Item | Value |
|---|---|
| Process Connections | 16 (up to 8 I/O channels, 2 terminals per channel) |
| Process Power Connections | 4 (including 0V connections) |
| Maximum Current per Process Voltage | 10 A |
| Maximum Current per I/O Channel | 3 A |
| ModuleBus Distribution (5V) | 1.5 A |
| ModuleBus Distribution (24V) | 1.5 A |
| Fuse Rating | 3.15 A (fast glass tube, 5×20 mm) |
| Wire Sizes | Solid: 0.2 – 4mm², Stranded: 0.2 – 2.5mm² (24 – 12 AWG) |
| Recommended Torque | 0.5 – 0.6 Nm |
| Stripping Length | 7 mm |
| Mechanical Keys | 36 different combinations |
| I/O Module Lock | Yes, locks module in place |
| Equipment Class | Class I (earth protected) |
| Protection Rating | IP20 (IEC 60529) |
| Rated Insulation Voltage | 250 V |
| Dielectric Test Voltage | 2000 V a.c. |
| Dimensions | Width: 126 mm, Depth: 64 mm, Height: 110 mm |
| Weight | 0.26 kg |
Environmental and Certification Data
- CE Mark: Yes
- Electrical Safety: EN 61010-1, UL 61010-1, EN 61010-2-201, UL 61010-2-201
- Marine Certification: ABS, BV, DNV-GL, LR
- Operating Temperature: 0 to +55 °C (+32 to +131 °F), approvals issued for +5 to +55 °C
- Storage Temperature: -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
- Protection Class: IP20 (IEC 60529)
- EMC Standards: EN 61000-6-4, EN 61000-6-2
- Overvoltage Categories: IEC/EN 60664-1, EN 50178
- RoHS Compliance: EN 50581:2012
- WEEE Compliance: DIRECTIVE/2012/19/EU
Mounting and Installation
- Mounting: Mounts on DIN rail (both horizontal and vertical installations are supported).
- Mechanical Locking: The unit includes a latch that locks it in place on the DIN rail for secure grounding.
The TU836/TU836V1 is a robust solution for connecting I/O modules in industrial automation systems, particularly for high-voltage applications where isolated channels and proper voltage distribution are necessary. Its mechanical keying and lock-in mechanism provide security and flexibility in field installations.
Contact Us
- Phone: +86-15915488782
- Email: uma@meloauto.com
- WhatsApp: +8615915488782
- Business Hours: 24/7 service
- Address: Unit 601, Powerlong International Center, No. 1599 Luling Road, Siming District, Xiamen City, Fujian, China
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