Description
Product Description ABB ACU-01B 3HNA024871-001
ABB ACU-01B 3HNA024871-001 is a compact controller from ABB’s range of industrial automation components, designed for controlling and monitoring low-energy devices and small-scale systems. This ACU-01B 3HNA024871-001 controller combines ease of operation with extended communication capabilities, making it ideal for integration into local automated networks where precise control and real-time data transmission are required. embodies ABB’s quality standards, ensuring stable performance in harsh industrial environments and compatibility with a wide range of sensors and actuators.
ABB ACU-01B 3HNA024871-001 is equipped with a high-performance microprocessor and supports major industrial protocols, enabling efficient interaction with PLCs and SCADA systems. For example, in industrial climate control systems, ACU-01B 3HNA024871-001 manages fans and valves to regulate temperature and humidity, while status data is transmitted to the central controller via Modbus. In residential and commercial complexes, monitors energy consumption systems, collecting electricity usage data and optimizing efficiency. ABB ACU-01B 3HNA024871-001 is easily configurable via dedicated software, reducing deployment time in existing setups. [Link to product ]
Technical Parameters ABB ACU-01B 3HNA024871-001
- Device Type: Compact industrial controller by ABB for low-energy systems
- Processor: 32-bit microcontroller with 80 MHz clock speed
- Memory:
- Flash: 256 kB (for program storage)
- RAM: 64 kB (for data)
- Inputs/Outputs:
- 8 analog inputs (0–10 V, 4–20 mA)
- 16 digital inputs (24 V DC)
- 8 digital outputs (relay, 250 V AC, 5 A)
- Communication Protocols: Modbus RTU (RS-485), Ethernet (optional via module)
- Power Supply: 24 V DC (range 18–30 V)
- Power Consumption: ≤5 W
- Temperature Range:
- Operating: -20 °C to +60 °C
- Storage: -40 °C to +85 °C
- Enclosure: Plastic with metal mounting brackets, IP20 protection rating
- Certifications: CE, UL, RoHS
- Weight: ≈280 g
- Dimensions: 100 × 70 × 30 mm (width × height × depth)
Advantages and Features ABB ACU-01B 3HNA024871-001
ABB ACU-01B 3HNA024871-001 stands out for its compact design, versatility, and easy integration:
- Flexible I/O configuration: 8 analog and 16 digital inputs, plus 8 relay outputs, allow connection of diverse sensors and actuators.
- Modbus RTU support: Simplifies integration with existing automation systems, including PLCs and operator panels.
- Wide temperature range: Operates reliably from -20 °C to +60 °C, critical for use in harsh environments.
- Low power consumption: ≤5 W makes it suitable for standalone systems with limited power sources.
Application Fields
- Commercial Buildings: Climate control and energy management systems
- Light Industry: Monitoring of auxiliary processes (ventilation, lighting)
- Residential Complexes: Control of water supply and heating systems in multi-story buildings
- Agricultural Industry: Temperature and humidity control in greenhouses and food storage facilities
Comparison with Competitors (including ABB ACU-02C)
| Parameter | ABB ACU-01B 3HNA024871-001 | ABB ACU-02C | Competitor Controller |
|---|---|---|---|
| Analog Inputs | 8 | 12 | 6 |
| Digital Inputs | 16 | 24 | 12 |
| Outputs | 8 (relay) | 12 (relay + transistor) | 6 (relay) |
| Ethernet Support | Optional | Standard | None |
| Weight | 280 g | 350 g | 300 g |
Selection Tips and Precautions
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Selection: is ideal for small systems with limited I/O requirements and basic communication protocols. For more complex applications with Ethernet and additional I/O, choose ABB ACU-02C.
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Installation:
- Mount on DIN rails for secure attachment and easy maintenance.
- Use shielded cables for Modbus RTU communication to minimize electromagnetic interference.
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Maintenance:
- Inspect connections quarterly—loose contacts can cause data loss.
- Update firmware via official ABB software annually to enhance stability and add new features.
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Safety:
- Ensure power supply stays within 18–30 V DC—voltage fluctuations may damage the controller.
- Avoid exposure to moisture and dust—while IP20-rated, harsh conditions reduce service life.
ABB ACU-01B 3HNA024871-001 is a compact, reliable controller that combines ABB’s quality with user-friendly operation, making it an excellent choice for small to medium-sized automated systems.

3HNA024871-001

