78155-77A | Reliance Electric Heat Sink Unit for Rectifier Stack
78155-77A | Reliance Electric Heat Sink Unit for Rectifier Stack
78155-77A | Reliance Electric Heat Sink Unit for Rectifier Stack
    78155-77A | Reliance Electric Heat Sink Unit for Rectifier Stack
78155-77A | Reliance Electric Heat Sink Unit for Rectifier Stack

78155-77A | Reliance Electric Heat Sink Unit for Rectifier Stack

Part #: 78155-77A Manufactured by: Reliance Electric
Regular price
$1,155.00
Sale price
$1,155.00
Regular price
4 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
The 78155-77A is a heat sink unit manufactured by Reliance Electric, also produced by Asea Brown Boveri, designed specific...  Read more
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warranty
IQElectro 2-Year Warranty
Warranty for Product #: 78155-77A
IQElectro offers a free 2-year warranty on all products. You can trust that every purchase is a reliable investment in the future of your company. Warranty Terms
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IQElectro is Not an authorized distributor for Reliance Electric
Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.

Product Description P/N: 78155-77A

Description / Specifications

Description 

The 78155-77A is a heat sink unit for a rectifier stack, designed and manufactured by Reliance Electric, and also produced by Asea Brown Boveri. Its primary function is to collect and disperse heat from high-temperature devices, specifically within a Reliance Electric rectifier stack. The 78155-77A is relatively flat with four central holes for installation. It features an extended side piece with an electric component surface, including a metal oxide varistor (MOV) with attached wires and a large resistor unit (product number 63481-40AX, rated at 50 Watts and 30 Ohms). The unit weighs approximately 0.99 lbs. (0.45 kg) excluding packaging materials. 

 

 

Technical Specifications 

Part # 

78155-77A 

Category 

Drives 

Subcategory 

Heat Sink for Drive 

 

 

Information About 78155-77A



The 78155-77A is a specialized heat sink designed specifically for use in drive systems, serving a critical role in managing thermal conditions and ensuring the reliable operation of industrial drives. As a component categorized under "Drives," this heat sink is essential for maintaining the optimal temperature of drive units, which are often subjected to high power demands and continuous operation in demanding industrial environments.

The primary function of the 78155-77A heat sink is to dissipate heat generated by the drive during operation. In high-performance drives, excessive heat can lead to thermal stress on internal components, potentially causing premature failure or operational inefficiencies. By effectively managing this heat, the 78155-77A helps to extend the lifespan of the drive, reduce the risk of overheating, and ensure consistent performance under varying load conditions.

Constructed from high-quality materials, the 78155-77A is designed for durability and long-term reliability. The material selection is optimized for thermal conductivity, allowing the heat sink to efficiently transfer heat away from the drive’s critical components. This efficiency is crucial in preventing heat buildup, which can adversely affect the performance and longevity of the drive system.

The design of the 78155-77A is both functional and robust, featuring a series of fins that increase the surface area available for heat dissipation. This finned design is engineered to maximize airflow around the heat sink, enhancing its ability to cool the drive even in environments with limited ventilation. The enhanced surface area provided by the fins allows for more efficient heat transfer, ensuring that the drive remains within its safe operating temperature range.

As a heat sink specifically designed for drives, the 78155-77A is compatible with a variety of drive models, making it a versatile solution for thermal management in industrial applications. Its standardized dimensions and mounting features ensure easy installation and integration into existing drive systems. This compatibility reduces installation time and minimizes the need for custom modifications, allowing for quick deployment in both new and retrofit applications.

In addition to its thermal management capabilities, the 78155-77A heat sink also contributes to the overall reliability of the drive system. By maintaining lower operating temperatures, it helps to reduce the thermal cycling that can lead to material fatigue and component wear. This reduction in thermal stress not only extends the life of the drive but also enhances its performance stability, which is critical in precision-driven industrial processes.

The 78155-77A is engineered to meet the rigorous demands of industrial environments, where consistent and reliable performance is essential. Its design takes into account the harsh conditions often encountered in such settings, including exposure to dust, vibration, and fluctuating temperatures. The robust construction of the heat sink ensures that it can withstand these challenges while continuing to provide effective thermal management over long periods of use.

Moreover, the 78155-77A heat sink is designed with maintenance in mind. Its accessible design allows for easy inspection and cleaning, ensuring that the heat dissipation capabilities are not compromised by the buildup of dust or other contaminants. This ease of maintenance contributes to the overall efficiency and reliability of the drive system, helping to minimize downtime and maintenance costs.

In summary, the 78155-77A is a high-quality heat sink specifically designed to enhance the performance and longevity of drive systems by providing effective thermal management. Its robust construction, efficient heat dissipation design, and compatibility with a wide range of drive models make it an indispensable component in industrial applications where reliable drive operation is critical. Whether used in new installations or as part of an upgrade or retrofit, the 78155-77A heat sink is engineered to deliver consistent and reliable thermal management, ensuring that drive systems operate efficiently and with reduced risk of thermal-related failures.

 

Manufacturer information

Reliance Electric, a pioneering electrical equipment manufacturer, was founded in 1904. Acquired by Rockwell Automation, it specialized in motors, drives, and industrial automation solutions. Known for innovation, Reliance played a key role in advancing industrial technology.

IQElectro is not an authorized distributor.
QElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The 78155-77A is a heat sink unit for a rectifier stack, designed and manufactured by Reliance Electric, and also produced by Asea Brown Boveri. Its primary function is to collect and disperse heat from high-temperature devices, specifically within a Reliance Electric rectifier stack. The 78155-77A is relatively flat with four central holes for installation. It features an extended side piece with an electric component surface, including a metal oxide varistor (MOV) with attached wires and a large resistor unit (product number 63481-40AX, rated at 50 Watts and 30 Ohms). The unit weighs approximately 0.99 lbs. (0.45 kg) excluding packaging materials. 

 

 

Technical Specifications 

Part # 

78155-77A 

Category 

Drives 

Subcategory 

Heat Sink for Drive 

 

 

Information About 78155-77A



The 78155-77A is a specialized heat sink designed specifically for use in drive systems, serving a critical role in managing thermal conditions and ensuring the reliable operation of industrial drives. As a component categorized under "Drives," this heat sink is essential for maintaining the optimal temperature of drive units, which are often subjected to high power demands and continuous operation in demanding industrial environments.

The primary function of the 78155-77A heat sink is to dissipate heat generated by the drive during operation. In high-performance drives, excessive heat can lead to thermal stress on internal components, potentially causing premature failure or operational inefficiencies. By effectively managing this heat, the 78155-77A helps to extend the lifespan of the drive, reduce the risk of overheating, and ensure consistent performance under varying load conditions.

Constructed from high-quality materials, the 78155-77A is designed for durability and long-term reliability. The material selection is optimized for thermal conductivity, allowing the heat sink to efficiently transfer heat away from the drive’s critical components. This efficiency is crucial in preventing heat buildup, which can adversely affect the performance and longevity of the drive system.

The design of the 78155-77A is both functional and robust, featuring a series of fins that increase the surface area available for heat dissipation. This finned design is engineered to maximize airflow around the heat sink, enhancing its ability to cool the drive even in environments with limited ventilation. The enhanced surface area provided by the fins allows for more efficient heat transfer, ensuring that the drive remains within its safe operating temperature range.

As a heat sink specifically designed for drives, the 78155-77A is compatible with a variety of drive models, making it a versatile solution for thermal management in industrial applications. Its standardized dimensions and mounting features ensure easy installation and integration into existing drive systems. This compatibility reduces installation time and minimizes the need for custom modifications, allowing for quick deployment in both new and retrofit applications.

In addition to its thermal management capabilities, the 78155-77A heat sink also contributes to the overall reliability of the drive system. By maintaining lower operating temperatures, it helps to reduce the thermal cycling that can lead to material fatigue and component wear. This reduction in thermal stress not only extends the life of the drive but also enhances its performance stability, which is critical in precision-driven industrial processes.

The 78155-77A is engineered to meet the rigorous demands of industrial environments, where consistent and reliable performance is essential. Its design takes into account the harsh conditions often encountered in such settings, including exposure to dust, vibration, and fluctuating temperatures. The robust construction of the heat sink ensures that it can withstand these challenges while continuing to provide effective thermal management over long periods of use.

Moreover, the 78155-77A heat sink is designed with maintenance in mind. Its accessible design allows for easy inspection and cleaning, ensuring that the heat dissipation capabilities are not compromised by the buildup of dust or other contaminants. This ease of maintenance contributes to the overall efficiency and reliability of the drive system, helping to minimize downtime and maintenance costs.

In summary, the 78155-77A is a high-quality heat sink specifically designed to enhance the performance and longevity of drive systems by providing effective thermal management. Its robust construction, efficient heat dissipation design, and compatibility with a wide range of drive models make it an indispensable component in industrial applications where reliable drive operation is critical. Whether used in new installations or as part of an upgrade or retrofit, the 78155-77A heat sink is engineered to deliver consistent and reliable thermal management, ensuring that drive systems operate efficiently and with reduced risk of thermal-related failures.

 

Manufacturer information

Reliance Electric, a pioneering electrical equipment manufacturer, was founded in 1904. Acquired by Rockwell Automation, it specialized in motors, drives, and industrial automation solutions. Known for innovation, Reliance played a key role in advancing industrial technology.

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