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- ABB
- DI821
- Digital Input Module
- Switzerland
- 45 x 102 x 119mm
- 0.18kg
- 3BSE008550R1
- Xiamen, China
- New & In Stock
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ABB DI821 (3BSE008550R1) Digital Input Module
Product Description
The ABB DI821 (3BSE008550R1) is an advanced digital input module engineered to provide precise and reliable input signal acquisition for industrial automation and control systems. Designed with 32 input channels, this module supports a higher density of inputs compared to typical modules, allowing for compact system design without sacrificing performance.
Measuring 45 x 102 x 119 mm and weighing 0.18 kg, the DI821 module fits seamlessly into control cabinets using standard DIN rail mounting. It is built to withstand harsh industrial environments, maintaining accurate operation across a wide temperature range. The module features optical isolation, protecting against electrical interference and ensuring signal integrity.
This digital input module is part of ABB’s AC500 series, known for its modularity, scalability, and robust performance in critical industrial applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | DI821 (3BSE008550R1) |
| Module Type | Digital Input Module |
| Number of Inputs | 32 channels |
| Input Voltage Range | 24 V DC |
| Input Signal Type | Digital |
| Dimensions (WxHxD) | 45 x 102 x 119 mm |
| Weight | 0.18 kg |
| Isolation | Optical isolation |
| Response Time | ≤ 10 ms |
| Operating Temperature | -25°C to +60°C |
| Mounting | DIN rail mounting |
| Communication Interface | ABB Fieldbus Systems |
| Series | AC500 Series |
| Brand | ABB |
Product Applications
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Collection of digital input signals from sensors, switches, and other binary devices in automation systems.
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Use in manufacturing plants for machine status monitoring and control.
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Integration into process control systems requiring high channel density inputs.
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Real-time monitoring in safety and interlock systems to improve plant reliability.
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Suitable for automation of heavy machinery, power plants, and industrial production lines.
Product Advantages
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High Input Channel Density: Supports 32 digital inputs in a single compact module, reducing cabinet space requirements.
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Compact and Lightweight: With a small footprint and only 0.18 kg weight, installation and handling are easy.
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Fast and Reliable: Response time of less than or equal to 10 milliseconds enables real-time data processing.
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Electrical Isolation: Optical isolation protects internal electronics from noise and transient voltage spikes.
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Wide Operating Range: Operates reliably in temperatures from -25°C to +60°C for diverse industrial environments.
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Seamless Integration: Compatible with ABB’s AC500 PLC series for flexible and scalable automation solutions.
Brand
ABB
Series
AC500 Series
Recommended Similar or Related Models (Same Series)
| Model Number | Description | Number of Inputs | Dimensions (mm) | Weight | Notes |
|---|---|---|---|---|---|
| DI810 (3BSE008511R1) | Digital Input Module | 8 inputs | 45 x 102 x 80 | 0.12 kg | Lower input channel count |
| DI820 (3BSE008512R1) | Digital Input Module | 16 inputs | 45 x 102 x 119 | 0.18 kg | Standard input module |
| DI830 (3BSE008513R1) | Digital Input Module | 24 inputs | 68 x 102 x 119 | 0.26 kg | Mid-range input capacity |
| DI821 (3BSE008550R1) | Digital Input Module | 32 inputs | 45 x 102 x 119 | 0.18 kg | High-density input module |
| DI840 (3BSE008514R1) | Digital Input Module | 32 inputs | 90 x 102 x 119 | 0.36 kg | Larger size high density |
Recommended Popular ABB Models (Other Series)
| Model Number | Description | Key Parameters | Weight |
|---|---|---|---|
| AI810 (3BSE018501R1) | Analog Input Module | 8 channels, 4-20mA inputs | 0.20 kg |
| AO810 (3BSE018503R1) | Analog Output Module | 8 channels, 0-10V output | 0.22 kg |
| DI810 (3BSE008511R1) | Digital Input Module | 8 channels, 24V DC inputs | 0.12 kg |
| DO820 (3BSE008516R1) | Digital Output Module | 16 channels, relay outputs | 0.20 kg |
| CPU412-2PN (3BSE050449R1) | AC500 PLC CPU Unit | High performance CPU | 0.60 kg |
Frequently Asked Questions (FAQ)
Q1: How many digital inputs does the DI821 module provide?
A1: The DI821 provides 32 digital input channels.
Q2: What are the dimensions of the DI821 module?
A2: The module measures 45 x 102 x 119 mm.
Q3: How much does the DI821 weigh?
A3: It weighs approximately 0.18 kg.
Q4: What is the required input voltage for the DI821?
A4: The module operates on 24 V DC digital input signals.
Q5: Can the DI821 operate in extreme temperature conditions?
A5: Yes, it functions reliably from -25°C to +60°C.
Q6: What type of isolation is provided in the DI821?
A6: Optical isolation is used to protect the circuitry from electrical interference.
Q7: Is the DI821 compatible with ABB’s AC500 series PLC?
A7: Yes, it fully integrates with the AC500 automation platform.
Q8: What is the typical response time of the module?
A8: The response time is 10 milliseconds or less.
Q9: How is the DI821 mounted in control panels?
A9: The module is designed for DIN rail mounting.
Q10: Can the DI821 be used in safety-critical applications?
A10: It can be used in safety systems, but should be paired with certified safety components.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.