801463-R RELIANCE

Reliance 801463-R Power Board

Brand：RELIANCE Model number：801463-R

Country of origin: United States Product weight：0.55kg

HS code：9032899099

Product Details：

Product Dimensions：

Reliance Electric power boards were crucial components in industrial control systems, primarily serving to manage, regulate, and distribute electrical power to various parts of machinery and automation equipment. These boards were fundamental to the operation of motor drives, PLCs, and other control devices, ensuring stable and reliable power delivery.

Product Details

Functionality: Reliance Electric power boards were designed to perform various power management tasks, including:

Voltage Regulation: Maintaining a stable output voltage despite fluctuations in the input power supply.
Power Distribution: Providing conditioned power to different sections of a control system or drive.
Power Conversion: Converting AC to DC, or adjusting voltage levels to meet the specific requirements of connected components.
Protection: Incorporating features for overvoltage, overcurrent, and short-circuit protection to safeguard sensitive electronics.
Gate Driving: In the context of motor drives, some power boards (often called "gate driver boards") were responsible for generating the precise control signals needed to switch power semiconductor devices (like IGBTs or MOSFETs) in motor control applications.

Types: Reliance Electric manufactured various types of power boards, often as part of larger drive systems (e.g., GV3000 series drives, FlexPak 3000 DC drives) or for PLC systems. These could include:

Power Supply Boards: Dedicated to providing regulated DC or AC power for logic circuits and control components.
Regulator Boards: Specifically designed for voltage and current regulation within drives.
Gate Driver Boards: Used in motor drives to control the power switching devices.
Custom Component Boards: Boards designed for specific power management or interface functions within larger systems.

Construction: Typically robust Printed Circuit Boards (PCBs) populated with power electronic components (e.g., rectifiers, transformers, capacitors, inductors, semiconductors) and control circuitry. They were often housed within larger enclosures or racks of industrial equipment.

Product Parameters (General, as specific boards varied greatly)

Input Voltage: Varied widely depending on the application, often 120VAC, 240VAC, 480VAC, or even higher for high-horsepower drives.
Output Voltage(s): Typically provided regulated DC voltages (e.g., +5V, ±15V, ±12V) for logic and control, and/or variable AC/DC power for motor control.
Power Rating (Wattage/Horsepower): Ranged from tens of watts for control system power supplies to hundreds or thousands of horsepower for drive power modules.
Current Capacity: The maximum current deliverable on output lines.
Efficiency: Indication of how much input power is converted to usable output power.
Operating Temperature Range: Designed for industrial environments, typically 0°C to +50°C, and sometimes wider.
Cooling: Often utilized integrated heat sinks, and could be fan-cooled depending on the power dissipation.
Isolation: Electrical isolation between high-power and low-power sections for safety and noise reduction.
Mounting: Designed for specific racks, enclosures, or chassis within Reliance Electric equipment.

Product Advantages

Reliability & Durability: Reliance Electric products were built to withstand harsh industrial environments, offering long operational lifespans.
Integrated Solutions: Power boards were often designed as integral parts of larger Reliance Electric drive and control systems, ensuring seamless compatibility and optimized performance.
Stable Power Delivery: Provided critical stable and regulated power, essential for the accurate and consistent operation of sensitive electronic components in industrial automation.
Protection Features: Included built-in protections against common electrical disturbances, enhancing system longevity and safety.
Performance Optimization: In drive applications, gate driver boards ensured precise timing and modulation of power signals, leading to efficient motor control and reduced energy consumption.

Important Considerations

Obsolete Status: As Reliance Electric no longer exists as an independent entity, many of these power boards are obsolete. This means new parts are rare, and finding replacements often involves sourcing from surplus markets or relying on repair services.
Compatibility: Due to their specialized nature, Reliance Electric power boards are generally only compatible with specific Reliance Electric drive systems or control platforms for which they were designed.
Technical Documentation: While some documentation might still be available through Rockwell Automation's archives or third-party industrial suppliers, detailed technical specifications for very old models can be challenging to find.
Installation & Repair: Due to their age and complexity, installation and repair of these legacy boards should ideally be performed by experienced technicians familiar with Reliance Electric systems.
Replacement Strategy: For critical applications, it's often advisable to consider upgrading to modern Rockwell Automation (Allen-Bradley) or Eaton power conversion solutions that offer current technology, warranties, and support.

Product Applications (Historical & Legacy Systems)

Motor Control Systems: The most significant application, particularly within Reliance Electric's variable speed AC and DC drives (e.g., FlexPak, GV3000 series) for precise control of industrial motors in:

Pumps and fans
Conveyors and material handling systems
Machine tools
Paper and printing presses
Textile machinery
Extruders and winders

Industrial Automation & Process Control: Providing stable power for PLCs, I/O modules, and other control electronics in various manufacturing and process industries.
Heavy Industrial Machinery: Used in applications requiring robust and reliable power electronics for large-scale industrial equipment.

803613-SC RELIANCE

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