Description
1. Product DescriptionThe
DI93a HESG440355R3 is a high-performance digital input module designed by
ABB, a leading global provider of industrial automation solutions. This module is engineered to interface with a wide range of sensors and switches, enabling reliable data acquisition and control in industrial environments. As part of ABB’s advanced automation portfolio, the
DI93a HESG440355R3 ensures seamless integration with systems like the AC800M and AC500 PLC platforms, making it ideal for process control, machinery automation, and monitoring applications.
2. Product Parameters
Parameter |
Specification |
Input Type |
Digital (24V DC, dry/wet contact) |
Number of Channels |
8 isolated channels |
Voltage Range |
19.2–30V DC |
Response Time |
≤5 ms |
Isolation |
250V AC between channels and system |
Protection |
Reverse polarity and short-circuit |
Mounting |
DIN rail (35mm) |
Dimensions |
100 x 100 x 60 mm |

DI93a HESG440355R3
3. Advantages and Features
- High Reliability: Built with robust components, the DI93a HESG440355R3 withstands voltage fluctuations and EMI/RFI interference, ensuring stable operation in harsh industrial settings.
- Flexible Configuration: Supports both dry and wet contacts, adapting to diverse sensor types and applications.
- Easy Integration: Plug-and-play design simplifies installation and reduces downtime, while compatibility with ABB’s automation software streamlines system commissioning.
- Diagnostic Capabilities: LED indicators provide real-time status monitoring, enabling quick fault detection and maintenance.
4. Application Areas and Case Studies
- Industry: Manufacturing, energy, water treatment, and chemical processing.
- Use Case: A steel plant in Germany integrated the DI93a HESG440355R3 to monitor conveyor belt sensors. The module’s fast response time and noise immunity reduced system errors by 30%, enhancing production efficiency.
5. Competitor Comparison
Compared to similar modules, the DI93a HESG440355R3 offers superior isolation (250V AC vs. typical 150V AC) and broader voltage tolerance, making it suitable for unstable power environments. Its compact size also saves up to 20% space in control cabinets.

DI93a HESG440355R3
6. Selection Recommendations
- Compatibility: Ensure compatibility with your PLC system (e.g., ABB AC800M, AC500).
- Channel Requirements: Choose between 8 or 16-channel versions based on input needs.
- Environment: Opt for additional surge protection if operating in high-voltage areas.
7. Precautions
- Verify input voltage matches the module’s rating (24V DC).
- Avoid exposing the module to extreme temperatures (>55°C) or humidity.
- Regularly inspect wiring connections to prevent loose contacts.
声明Shanxi Xinyeda International Trade Co., Ltd. is your trusted partner for
DI93a HESG440355R3 and other automation spare parts. We provide sales and technical support. Visit our website
www.xydcontrol.com or contact us for tailored solutions.
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