1. Product Overview
Product Name: Power Supply Module 3A
Model: MAQ20-PWR3
Series: MAQ20 Data Acquisition and Control System Series
Article Number: MAQ20-PWR3
Manufacturer: Dataforth Corporation

The Dataforth MAQ20-PWR3 is a high-performance, compact power supply module designed specifically for the MAQ20 data acquisition and control system platform. It provides a regulated 5VDC output at up to 3A maximum current, ensuring stable and reliable power delivery to MAQ20 system backplanes and connected I/O modules. Engineered for industrial environments, the MAQ20-PWR3 features a DIN-rail mountable form factor with integrated backbone connectivity, enabling seamless integration into modular automation and measurement systems.

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2. Key Features
- High-Efficiency Power Supply: Provides a regulated 5VDC output with a maximum current capacity of 3A, suitable for powering multiple MAQ20 modules simultaneously.
- DIN-Rail Mounting: Designed for DIN-rail installation, allowing quick and secure mounting within control panels or industrial enclosures.
- Integrated System Backbone Connection: The module connects directly to the MAQ20 system backbone, distributing power efficiently to all modules in the system without external wiring.
- Compact Industrial Design: With dimensions of 122 × 71.6 × 25 mm, the MAQ20-PWR3 offers a space-saving profile ideal for dense system configurations.
- Reliable and Stable Output: Ensures consistent voltage regulation and low ripple, maintaining system stability even under varying load conditions.
- Thermal and Overload Protection: Incorporates internal protection mechanisms to safeguard against overcurrent, short-circuit, and thermal overload conditions.
- Plug-and-Play Integration: Designed for direct compatibility with MAQ20 system components, minimizing setup time and configuration complexity.
- Industrial-Grade Construction: Built with robust materials and designed to operate reliably in demanding industrial environments.

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3. Technical Specifications
- Output Voltage: 5 VDC regulated
- Maximum Output Current: 3 A
- Output Power: 15 W (5V × 3A)
- Input Power Source: Typically supplied from an external DC power source compatible with MAQ20 system requirements
- Mounting Type: DIN-rail mount with integrated system backbone connection
- Dimensions: 122 mm (height) × 71.6 mm (depth) × 25 mm (width)
- Weight: Approximately 150–200 g (typical, depending on configuration)
- Material: Industrial-grade enclosure, typically anodized aluminum or high-strength polymer housing for durability and EMI shielding
- Cooling Method: Natural convection (fanless operation)
- Operating Temperature Range: Typically -40°C to +70°C (depending on system configuration and ambient conditions)
- Storage Temperature Range: -40°C to +85°C
- Relative Humidity: 5% to 95% non-condensing
- Efficiency: Typically >85% at full load (estimated based on similar Dataforth modules)
- Isolation: Internal isolation between input and output circuits for system protection
- Protection Features: Overvoltage, overcurrent, and thermal shutdown protection

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4. Functionality
The MAQ20-PWR3 functions as the primary power supply module for the MAQ20 data acquisition and control system. It converts an external DC input into a regulated 5VDC output, which is distributed through the system’s backbone connector to all installed I/O and communication modules.

Operational Principle:
- The module receives DC input power from an external source.
- Internal regulation circuitry stabilizes the voltage to a precise 5VDC output.
- The regulated power is delivered through the MAQ20 backbone, ensuring consistent voltage across all connected modules.
- Built-in protection circuits monitor current draw and temperature, automatically limiting or shutting down output in case of overload or fault conditions.

Use Cases and Applications:
- Industrial Automation: Powering distributed I/O modules in process control and factory automation systems.
- Data Acquisition Systems: Providing stable power for analog and digital input/output modules in measurement and monitoring applications.
- Test and Measurement: Supporting laboratory and field instrumentation setups requiring modular, scalable power distribution.
- Embedded Control Systems: Supplying regulated power to embedded controllers and communication interfaces within the MAQ20 ecosystem.

Compatibility:
- Fully compatible with all MAQ20 system modules, including analog input, analog output, digital I/O, and communication modules.
- Designed to integrate seamlessly with MAQ20-BK backplanes and MAQ20-COM communication modules.

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5. Components & Accessories
Included Items:
- MAQ20-PWR3 Power Supply Module
- Integrated DIN-rail mounting clip
- System backbone connector (pre-installed)
- Quick-start installation guide or datasheet

Optional Accessories:
- MAQ20-BK backplanes (various slot configurations)
- MAQ20-COM communication modules (Ethernet, USB, RS-232/485 interfaces)
- External DC Power Adapters (as required by system configuration)
- DIN-rail mounting hardware and end stops for secure installation

Connectors:
- Backbone Connector: Provides power distribution to all modules on the MAQ20 backplane.
- Input Power Connector: Accepts external DC input (typically via screw terminal or plug-in connector).

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6. Installation & Setup
Requirements:
- Compatible DIN-rail (35 mm standard) for mounting.
- External DC power source capable of supplying sufficient current for the MAQ20 system load.
- Proper grounding and electrical protection per industrial installation standards.

Mounting Options:
- Snap-on DIN-rail installation using the integrated clip mechanism.
- Positioning adjacent to other MAQ20 modules on the same backplane for compact system assembly.

Configuration Steps:
1. Mount the MAQ20-PWR3 onto the DIN-rail.
2. Connect the external DC power source to the input terminals.
3. Ensure correct polarity and secure all connections.
4. Attach the module to the MAQ20 backbone to distribute power to connected modules.
5. Verify output voltage and system operation before commissioning.

Safety Considerations:
- Disconnect power before installation or removal.
- Ensure compliance with local electrical codes and safety standards.
- Avoid exposure to excessive heat, vibration, or moisture.

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7. Performance & Capabilities
Power Output:
- Delivers up to 3A continuous current at 5VDC, sufficient to power multiple MAQ20 modules simultaneously.

Efficiency & Stability:
- High efficiency (>85%) minimizes heat generation and energy loss.
- Low output ripple ensures stable operation of sensitive analog and digital circuits.

Load Regulation:
- Maintains output voltage within ±1% under varying load conditions.

Thermal Performance:
- Designed for fanless operation with natural convection cooling.
- Thermal protection circuitry prevents overheating under high-load conditions.

Capacity & Scalability:
- Supports expansion of MAQ20 systems by providing sufficient power for additional modules.
- Multiple MAQ20-PWR3 units can be used in parallel systems for redundancy or increased capacity.

Limitations:
- Output limited to 3A maximum; exceeding this may trigger protective shutdown.
- Designed exclusively for MAQ20 systems; not intended as a general-purpose power supply.

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8. Standards & Compliance
Certifications:
- Designed and manufactured in accordance with Dataforth’s ISO 9001:2015 quality management system.
- Complies with CE marking requirements for electromagnetic compatibility and safety.
- Meets RoHS (Restriction of Hazardous Substances) directives for environmental compliance.
- Conforms to UL/CSA safety standards for industrial control equipment (typical for Dataforth modules).

Industry Standards:
- DIN EN 60715 (DIN-rail mounting standard)
- IEC 61010-1 (Safety requirements for electrical equipment for measurement, control, and laboratory use)
- EN 55022 / EN 55024 (EMC emission and immunity standards)

Environmental Compliance:
- Lead-free and halogen-free construction.
- Designed for long operational life and minimal maintenance.

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9. Additional Information
Warranty:
- Standard Dataforth 3-year warranty covering defects in materials and workmanship under normal operating conditions.

Technical Support:
- Comprehensive technical documentation, datasheets, and application notes available from Dataforth.
- Dedicated customer support and engineering assistance for system integration and troubleshooting.

Maintenance:
- Virtually maintenance-free due to solid-state design and fanless operation.
- Periodic inspection recommended to ensure clean electrical connections and proper ventilation.

Firmware/Hardware Updates:
- As a power supply module, the MAQ20-PWR3 does not require firmware updates.
- Hardware revisions may be released to improve efficiency or compliance; backward compatibility is typically maintained.

Service Life:
- Designed for long-term continuous operation in industrial environments.
- Typical MTBF (Mean Time Between Failures) exceeds 100,000 hours under nominal conditions.

Environmental & Operational Notes:
- Suitable for installation in control cabinets, process monitoring stations, and distributed I/O systems.
- Operates reliably in environments with moderate vibration and temperature variation.

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### Summary
The Dataforth MAQ20-PWR3 Power Supply Module is a robust, high-efficiency 5VDC/3A power source engineered for the MAQ20 modular data acquisition and control system. Its compact DIN-rail mountable design, integrated backbone connectivity, and industrial-grade construction make it ideal for powering distributed I/O and communication modules in automation, measurement, and control applications. With built-in protection features, compliance with international standards, and long-term reliability, the MAQ20-PWR3 ensures stable system operation and simplified integration within complex industrial environments.

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