Product introduction

ABB DI821 3BSE008550R1 is an 8-channel digital input module that works with 230

ABB DI821 3BSE008550R1 is an 8-channel digital input module that works with 230 V AC/DC voltage, which belongs to ABB's S800 I/O series. Here is a detailed introduction: ### Basic Information - **Brand**: ABB - **Model**: DI821 3BSE008550R1 - **Type**: Digital Input Module - **Origin**: Sweden - **Net Weight**: 0.3 kg   - **Dimensions**: 45 mm × 102 mm × 119 mm ### Technical Parameters - **Input Channels**: It is equipped with 8 digital input channels, and each channel is individually galvanically isolated. - **Input Voltage**: The AC input voltage range is 164 to 264 V, and the DC input range is 175 to 275 V. - **Input Current**: When the AC input voltage is 230 V, the input current is 11 mA; when the DC input voltage is 220 V, the input current is 1.6 mA. - **Isolation Voltage**: Rated isolation of 250 V.   - **Filtering**: Each channel is furnished with a 6 ms analog filter to suppress interference.   ### Functional Features Channel 1 can function as the voltage supervision input for channels 2 to 4, while channel 8 can be used as the voltage supervision input for channels 5 to 7. If the voltage of channel 1 or 8 fails, an error signal will be activated, the warning LED will light up, and such signal can be read via the module bus. Moreover, every input channel is configured with an LED indicator, which can display the working status of the channel to help with easy monitoring and fault diagnosis. ### Application It is commonly utilized in industrial automation control systems to gather 230 V digital input signals and transmit them to a controller, such as a PLC or DCS, and is applicable to industries like manufacturing, energy, and infrastructure. ### Matching Termination Units This module needs to work with specific module termination units, including TU811, TU813, TU831, TU839, or TU851. style="max-width:100%!important;height:auto!important;" src="/uploads/allimg/20250724/1-250H414121B34.png" alt="White background image.png"/>

ABB DI821 3BSE008550R1 Digital Input Module

ABB DI821 3BSE008550R1 Digital Input Module

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