Littelfuse CAP-55/5/440R - 55+5 MFD 370/440V ROUND RUN CAPACITOR
Littelfuse

CAP-55/5/440R

UPC: 811068033271


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Specification Sheet

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Multiplier: 10

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Overview

The Littelfuse CAP-55/5/440R is a robust and reliable dual-section round run capacitor engineered for demanding industrial motor applications. This capacitor plays a critical role in the efficient operation and longevity of single-phase AC induction motors, commonly found in HVAC systems, refrigeration units, pumps, compressors, and various other industrial machinery. By providing the necessary starting and running torque, it ensures smooth motor startup and sustained operational performance. With a dual capacitance rating of 55 MFD and 5 MFD, and a substantial voltage rating of 370/440V, the CAP-55/5/440R is designed to meet the stringent requirements of modern industrial equipment. The 55 MFD section is typically utilized for starting the motor, providing the initial surge of power needed to overcome inertia, while the 5 MFD section assists in maintaining the motor's running speed and efficiency. This dual-functionality is essential for optimizing motor performance and reducing energy consumption. Littelfuse is a globally recognized leader in circuit protection and power control solutions, and the CAP-55/5/440R exemplifies their commitment to quality and durability. Constructed with high-grade materials and subjected to rigorous testing, this capacitor is built to withstand the harsh operating conditions often encountered in industrial environments, including fluctuating temperatures, humidity, and electrical stress. Its round configuration allows for easy integration into existing motor housings and electrical panels. Key benefits of utilizing the Littelfuse CAP-55/5/440R include: * **Enhanced Motor Efficiency:** Proper capacitance ensures the motor operates at its designed power factor, reducing energy waste and lowering operational costs. * **Extended Motor Lifespan:** By facilitating smooth starts and stable running, the capacitor minimizes stress on motor windings and bearings, thereby prolonging the equipment's service life. * **Reliable Performance:** Engineered for consistent output, this capacitor provides dependable operation even under heavy loads and challenging environmental factors. * **Versatile Application:** Suitable for a wide array of industrial motor applications, including but not limited to, air conditioning units, commercial refrigerators, industrial fans, and agricultural equipment. * **Durable Construction:** Built to endure the rigors of industrial use, ensuring a long operational life and minimizing downtime. When selecting a run capacitor, it is crucial to match the capacitance (MFD) and voltage (V) ratings to the specific requirements of the motor. The Littelfuse CAP-55/5/440R, with its versatile dual rating, offers a reliable solution for many common industrial motor configurations. Trust in Littelfuse's expertise to provide the critical components that keep your industrial operations running smoothly and efficiently.
  • Dual capacitance rating: 55 MFD and 5 MFD for starting and running motor phases.
  • High voltage rating: 370/440V AC, suitable for a wide range of industrial applications.
  • Round configuration for easy installation in motor housings and electrical panels.
  • Designed for reliable performance in demanding industrial environments.
  • Manufactured by Littelfuse, a trusted leader in circuit protection and power control.

Specifications

Series
CAP-55/5/440R
Size
Round
Voltage Rating
370/440 VAC
25+3MFD 370/440V OVAL RUN CAPACITOR

CAP-25/3/440

25+3MFD 370/440V OVAL RUN CAPACITOR
5MFD 370/440V ROUND RUN CAPACITOR

CAP-5/440R

5MFD 370/440V ROUND RUN CAPACITOR
50+5MFD 370/440V ROUND RUN CAPACITOR

CAP-50/5/440R

50+5MFD 370/440V ROUND RUN CAPACITOR
25+15MFD 370/440V OVAL RUN CAPACITOR

CAP-25/15/440

25+15MFD 370/440V OVAL RUN CAPACITOR
30+7.5MFD 370/440V OVAL RUN CAPACITOR

CAP-30/7.5/440

30+7.5MFD 370/440V OVAL RUN CAPACITOR
17.5 MFD 370/440V OVAL RUN CAPACITOR

CAP-17.5/440

17.5 MFD 370/440V OVAL RUN CAPACITOR
5 MFD 370/440V OVAL RUN CAPACITOR

CAP-5/440

5 MFD 370/440V OVAL RUN CAPACITOR
20+7.5MFD 370/440V ROUND RUN CAPACITOR

CAP-20/7.5/440R

20+7.5MFD 370/440V ROUND RUN CAPACITOR
35+10MFD 370/440V OVAL RUN CAPACITOR

CAP-35/10/440

35+10MFD 370/440V OVAL RUN CAPACITOR
30+5MFD 370/440V OVAL RUN CAPACITOR

CAP-30/5/440

30+5MFD 370/440V OVAL RUN CAPACITOR
35+3 MFD 370/440V ROUND RUN CAPACITOR

CAP-35/3/440R

35+3 MFD 370/440V ROUND RUN CAPACITOR
30+5 MFD 370/440V ROUND RUN CAPACITOR

CAP-30/5/440R

30+5 MFD 370/440V ROUND RUN CAPACITOR

Frequently Asked Questions about Littelfuse

What certifications and standards do Littelfuse products comply with?

Littelfuse products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Customers can verify specific product certifications by consulting individual product datasheets on Littelfuse.com, which provide comprehensive details about standards compliance for each component.

What industries and applications are Littelfuse products used for?

Littelfuse products are critical for electrical protection and safety across multiple industrial sectors, including manufacturing, automation, power distribution, and electrical control systems. Their comprehensive product portfolio serves industries that require robust electrical protection, including motor and pump applications, solar installations, programmable logic controllers (PLCs), electrical switch panels, and critical infrastructure environments. Key product lines protect against overcurrent, voltage transients, ground faults, and temperature-related electrical risks, ensuring equipment safety and operational reliability.

What technical support does Littelfuse offer?

Littelfuse offers comprehensive technical support through multiple channels. Their Technical Hotline (800-TEC-FUSE) provides direct access to engineers who can help identify issues and recommend solutions. Additionally, Littelfuse offers extensive online Technical Resources at Littelfuse.com, including datasheets, product manuals, whitepapers, application guides, and online design tools. Their experienced product and application engineers also provide step-by-step support from design to installation.

What are the main product lines offered by Littelfuse?

Littelfuse offers comprehensive industrial protection and control product lines, including fuses, fuse holders, protection relays, temperature sensors, and electrical safety components. Their key product categories span surge protective devices, custom OEM products, electrical switch panels, medium voltage fuses, ground-fault protection relays, motor and pump protection devices, and temperature sensors. These products are designed to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from electrical faults.

What are the key features of Littelfuse products?

Littelfuse products feature exceptional circuit protection technologies with key characteristics including UL/IEC safety standard compliance, low internal resistance, and advanced protective capabilities across multiple product lines. Their components provide critical protection for industrial systems, offering features like overcurrent protection, voltage transient suppression, and resettable protection devices with ultra-low resistance and compact designs. Key product lines include fuses, metal oxide varistors (MOVs), TVS diodes, PolySwitch devices, and specialized electronic protection components that enhance system reliability and safety.

What environmental ratings do Littelfuse products have?

Littelfuse products feature comprehensive environmental ratings, including NEMA Type 1, 2, 3, 3R, 4/4X, 12, and 13 certifications, as well as IP65 protection. These ratings ensure superior protection in diverse industrial environments, with an operating temperature range of -40°F to +131°F (-40°C to +55°C). Many products also include UV-stabilized materials and neoprene gaskets for enhanced durability in outdoor and challenging conditions.

What accessories are available for Littelfuse products?

Littelfuse offers several key accessories across their product lines, including fuse holders, voltage monitoring modules, and terminal connectors. Specific accessories include the LPSM003ZXID (indicating) and LPSM003Z (non-indicating) POWR-SAFE Dead Front fuse holders for Class CC and Midget-Style fuses, the VRM6048 voltage monitor accessory module, and female quick connect terminals (P1015 series) in various wire gauge sizes. These accessories are designed to enhance protection, monitoring, and connectivity for Littelfuse electrical components.

What is Littelfuse's warranty policy?

Littelfuse provides comprehensive warranty details on their official website at www.littelfuse.com/warranty. Customers should visit this page to review the specific warranty terms and conditions for their specific product lines. For direct warranty support or questions, customers can contact Littelfuse Technical Support at 1-800-TEC-FUSE or email [email protected].

What communication protocols do Littelfuse products support?

Littelfuse supports a comprehensive range of industrial communication protocols, including PROFIBUS, PROFINET, EtherNet/IP, DeviceNet, Modbus RTU, and CANopen. Our products provide flexible connectivity solutions across multiple industrial automation platforms, enabling seamless integration with various control systems and network architectures.

How are Littelfuse products typically installed?

Littelfuse products are typically installed using specialized mounting hardware like fuse holders, blocks, and panels designed for specific industrial applications. The POWR-SAFE Dead Front holders, for example, provide optimum protection for Class CC and Midget-Style fuses, supporting installations up to 600 VAC/DC. Installation often involves using precision terminals with strain relief, such as 0.25 in. female quick connect terminals, to ensure secure and safe electrical connections in industrial control systems.