描述
ABB TU891是ABB S800 I/O系统的一款紧凑型模块终端单元（MTU）。以下是其产品详情：
基本信息
产品编号：3BSC840157R1
类型：紧凑型MTU
原产国：瑞典
尺寸：宽度64mm（包括连接器），安装边缘到边缘宽度58.5mm，深度58mm（不包括端子）、106mm（包括端子），高度194mm（包括锁扣）
重量：0.17kg
技术参数
连接方式：端子块连接
通道数量：8
最大额定电压：50V
最大额定电流：每通道2A
可接受的电线尺寸：电源连接器为0.25-2.5mm²（24-14AWG）；信号/现场接线为实心0.2-4mm²或绞合0.2-2.5mm²（24-12AWG）
介电测试电压：500V a.c.
工作温度范围：0℃至+55℃
存储温度范围：-40℃至+70℃
防护等级：IP20
功能特点
无源设计：作为无源单元，用于将现场布线和电源连接到I/O模块，还包含部分模块总线。
信号分配：将模块总线分配给I/O模块和下一个MTU，并通过将传出位置信号移至下一个MTU来为I/O模块生成正确地址。
机械键控：具有机械键控功能，可防止插入错误的I/O模块。
安装方便：支持DIN导轨安装，带有闭锁装置，可将MTU牢固地安装在DIN导轨上。
应用领域：可用于本质安全应用，与AI890、AI893、AI895、AO890、AO895、DI890和DO890等I/O模块配合使用。
The ABB TU891 is a compact modular terminal unit(MTU)for the ABB S800 I/O system.Below are the product details:
Basic Information
Product Number:3BSC840157R1
Type:Compact MTU
Country of Origin:Sweden
Dimensions:Width 64mm(including connector),mounting edge-to-edge width 58.5mm,Depth 58mm(excluding terminals),106mm(including terminals),Height 194mm(including latch)
Weight:0.17kg
Technical Parameters
Connection Method:Terminal Block
Number of Channels:8
Maximum Rated Voltage:50V
Maximum Rated Current:2A per channel
Acceptable Wire Size:0.25-2.5mm²(24-14AWG)for power connectors;solid 0.2-4mm²or stranded 0.2-2.5mm²(24-12AWG)for signal/field wiring
Dielectric Test Voltage:500V AC
Operating Temperature Range:0°C to+55°C
Storage Temperature Range:-40°C to+70°C
Protection Rating:IP20
Features
Passive Design:This passive unit connects field wiring and power to the I/O modules and also contains part of the module bus.
Signal Distribution:This unit distributes the module bus to the I/O modules and the next MTU,and generates the correct address for the I/O modules by shifting the outgoing position signal to the next MTU.
Mechanical Keying:This unit features a mechanical keying function to prevent incorrect I/O module insertion.
Easy Installation:This unit supports DIN rail mounting and includes a locking mechanism for securely attaching the MTU to the DIN rail.
Applications:This unit can be used in intrinsically safe applications and is compatible with I/O modules such as the AI890,AI893,AI895,AO890,AO895,DI890,and DO890.
ABB Model: GBU72 3BHE055094R0002 Model: 3BHE055094R0002 GBU72 Model: GBU72 Model: 3BHE055094R0002 Model: 3BHE031197R0001 Model: 3BHB030310R0001 Model: 73BHE055094R0002 GBU72 Model: 73BHE055094R0002 Model: GBU72 Model: ABB PCS6000 PRODUCT FAMLIY ABB 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101
