ABB APBU-44C
I. Overview
The ABB APBU-44C is part of the ABB S800 I/O system, primarily used in industrial automation and control systems. As a multifunctional digital input module, it supports control requirements in various industrial scenarios. This module features high reliability, ease of use, and excellent compatibility, enabling seamless integration with other ABB modules and systems.
II. Parameters
- Input Voltage: Typically 85-264 VAC/DC; some products specify 100-240 VAC.
- Output Voltage: Fixed at +24V DC.
- Output Current: Maximum 1.85A.
- Rated Power: 44W.
- Operating Temperature: -20°C to +60°C.
- Storage Temperature: -40°C to +85°C.
- Dimensions: 35 x 68 x 23 mm.
- Weight: 0.18 kg.
- Power Supply Voltage: 24 V DC.
- Power Consumption: 2 W.
- Communication Interface: Supports Modbus RTU.
III. Product Features
- High Reliability: Manufactured with high-quality components and subjected to rigorous testing to ensure reliability.
- Ease of Use: Provides intuitive wiring and a programming interface for easy operation and maintenance.
- Multifunctionality: Can serve as a variable frequency drive spare part, channel branch unit, or analog input/output module to meet diverse industrial needs.
- High-Precision Measurement: Adopts advanced voltage measurement technology for accurate signal reading.
- Wide Measurement Range: Accommodates different voltage signal specifications and types for various industrial applications.
- Security: Incorporates advanced security technologies (e.g., WPA2) to ensure data transmission and device access security.
- Intelligent Access: Enables remote monitoring of drive status, including speed, current, voltage, temperature, and power.
IV. Structure and Composition
The ABB APBU-44C consists of the following main components:
- Digital Input Channels: 4 channels supporting PNP and NPN inputs.
- Isolation Function: Optional isolation to enhance anti-interference capability.
- Terminal Blocks: Adopts terminal connection for easy installation and maintenance.
- Housing: Made of high-quality alloy material for durability and corrosion resistance.
- Internal Circuits: Includes power management, signal processing, and communication interface modules.
V. Application Areas
The ABB APBU-44C is widely used in:
- Power Industry: For power plants, substations, and power transmission/distribution networks to control, regulate, and stabilize power systems.
- Manufacturing Industry: For driving and controlling production equipment (e.g., conveyors, pumps, fans, compressors).
- Petrochemical Industry: For equipment in petrochemical processes (e.g., pumps, agitators, valves).
- Metallurgical Industry: For smelting equipment, rolling mills, cranes, etc.
- Municipal Engineering: For water supply, drainage, and heating systems to achieve energy efficiency and stable operation.
- Industrial Control Systems: Controls equipment operation and stops to enable automated production.
- Communication Networks: Supports transmission and distribution of telephone, internet, and TV services in telecom networks to enhance efficiency and coverage.
VI. Installation and Maintenance
- Installation: Ensure the module’s input and output voltages match device requirements and wiring is correct.
- Maintenance: Regularly inspect terminal blocks and internal circuits. Configure and control via an operation panel or network management tools, and monitor real-time operation status and data.
- Fault Handling: Use ABB’s advanced diagnostic module (DTM) software for diagnosis and repair.
- After-Sales Service: All products come with a 12-month warranty for timely support.

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If you would like to learn more about our products and services, please feel free to contact us at any time!
- Sales Manager : Jinny
- Email : sales5@xrjdcs.com
- Whatsapp/Mobile:+86 15359273791
Global renowned brand cooperation
ABB 丨 GE 丨Allen Bradley 丨 Honeywell 丨 Emerson 丨 Bently Nevada 丨 Westinghouse
Triconex 丨 Foxboro 丨 ICS Triplex 丨 Hima 丨 Schneider 丨 Yokogawa 丨 Woodward
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Frequently Asked Questions
Q1: When is the earliest you can deliver the goods?
A: We will ship the goods after receiving your payment.
Q2: Do you have branch offices abroad?
A: No, but we sell to customers worldwide.
Q3: Are you a manufacturer or a trader?
A: We are a trading company.
Q4: Can you provide technical support?
A: No, we sell hardware only, and technical support is not included.
Q5: Can you provide data sheets/literature/technical documents?
A: Data sheets will be delivered together with the goods.
Our Services
Packaging & Shipping
- Orders will be shipped within 3 working days after payment confirmation.
- All goods are inspected before shipment.
- Products are packed in brand-new, original factory-sealed individual inner boxes.
- We offer shipping via DHL/TNT/UPS/EMS/FedEx. Please contact us directly, and we will
- arrange delivery according to your requirements.
Warranty & Returns
- All products we sell are 100% brand-new, original, and well-packaged. They are inspected before shipment to minimize quality issues.
- We provide a 12-month warranty from the date of package receipt. For defects in materials or workmanship, please contact us first, and we will replace the product or offer alternative solutions for your choice.
- Shipping and handling fees are non-refundable. Customers are responsible for costs related to unreasonable returns and reshipments. All returned items must be in good condition and resalable. Man-made damages (e.g., breakage, scratches) are not covered by the warranty. Thank you for your understanding and cooperation!

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