Littelfuse CAP-50/10/440R - 50+10MFD 370/440V ROUND RUN CAPACITOR
Littelfuse

CAP-50/10/440R

UPC: 811068033196

Documents & Media
Specification Sheet

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Minimum Qty: 10

Multiplier: 10

*Contact for lower quantities*

Overview

The **Littelfuse CAP-50/10/440R** is a premium-grade round run capacitor engineered to deliver reliable performance in industrial motor applications. Designed for demanding environments, this capacitor combines a **50+10µF capacitance** with a **370/440V voltage rating**, making it an ideal solution for maintaining optimal motor operation in HVAC systems, compressors, and other heavy-duty machinery. Built to withstand harsh conditions, the CAP-50/10/440R ensures consistent starting and running capacitance, reducing downtime and enhancing system efficiency. **Key Features and Benefits** - **Dual Capacitance Design**: The **50+10µF** configuration provides both starting and running capacitance, optimizing motor performance across varying load conditions. - **High Voltage Rating (370/440V)**: Suitable for industrial applications where voltage fluctuations are common, ensuring stable operation and protection against surges. - **Durable Construction**: Engineered for longevity, this capacitor resists corrosion, heat, and mechanical stress, making it ideal for harsh industrial environments. - **Compact Round Design**: The space-saving round form factor simplifies installation in tight enclosures, reducing mounting complexity. - **Compliance with Industry Standards**: Manufactured by **Littelfuse**, a trusted name in electrical protection, the CAP-50/10/440R meets rigorous industry benchmarks for reliability and safety. **Typical Applications** The Littelfuse CAP-50/10/440R is widely used in: - **HVAC Systems**: Ensures smooth operation of compressors and fan motors in commercial and industrial cooling systems. - **Compressors**: Provides the necessary capacitance for reliable starting and running in refrigeration and air compression units. - **Industrial Machinery**: Ideal for pumps, conveyors, and other motor-driven equipment requiring consistent performance. - **Agricultural Equipment**: Supports electric motors in irrigation systems, grain dryers, and other farm machinery. - **Renewable Energy Systems**: Used in wind turbine generators and solar-powered motor applications where stable capacitance is critical. **Why Choose Littelfuse?** Littelfuse is a global leader in circuit protection, power management, and electrical components, with a reputation for innovation and quality. The CAP-50/10/440R is part of their extensive lineup of motor run capacitors, designed to meet the demands of modern industrial applications. Professionals trust Littelfuse for: - **Proven Reliability**: Decades of expertise in electrical protection ensure products like the CAP-50/10/440R deliver consistent performance. - **Global Distribution**: Widely available through authorized distributors, ensuring quick access to replacements and support. - **Technical Support**: Comprehensive documentation, including datasheets and application guides, assists engineers and technicians in proper selection and installation. - **Sustainability**: Littelfuse prioritizes eco-friendly manufacturing processes and materials, aligning with industry trends toward greener solutions. **Installation and Maintenance** Proper installation of the CAP-50/10/440R is critical for optimal performance. Key considerations include: - **Mounting**: Ensure the capacitor is securely mounted in a well-ventilated area to prevent overheating. - **Wiring**: Follow manufacturer guidelines for correct polarity and connection to the motor. - **Inspection**: Regularly check for signs of wear, such as bulging or leakage, and replace if necessary to avoid system failures. - **Compatibility**: Verify the capacitor’s specifications match the motor’s requirements to prevent overloading or underperformance. **Industry Trends and Future-Proofing** As industries transition toward energy-efficient and smart motor systems, capacitors like the Littelfuse CAP-50/10/440R play a pivotal role. They support: - **Energy Savings**: By improving motor efficiency, these capacitors reduce power consumption and operational costs. - **Predictive Maintenance**: Integration with IoT-enabled systems allows for real-time monitoring of capacitor health, minimizing unplanned downtime. - **Regulatory Compliance**: Meets international standards for electrical safety and performance, ensuring seamless integration into global markets. For professionals seeking a dependable, high-performance run capacitor, the **Littelfuse CAP-50/10/440R** stands out as a top-tier choice. Its robust design, versatile applications, and manufacturer-backed reliability make it a cornerstone component in modern industrial motor systems.
  • 50+10µF dual capacitance for optimal motor starting and running
  • 370/440V voltage rating for industrial applications
  • Compact round design for easy installation in tight spaces
  • Durable construction resists heat, corrosion, and mechanical stress
  • Trusted Littelfuse quality for HVAC, compressors, and industrial machinery

Specifications

Mounting Type
Compact Round
Series
CAP
Size
Round
Voltage Rating
370/440 V
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
5 MFD 370/440V OVAL RUN CAPACITOR

CAP-5/440

5 MFD 370/440V OVAL 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
60+5 MFD 370/440V OVAL RUN CAPACITOR

CAP-60/5/440

60+5 MFD 370/440V OVAL RUN CAPACITOR
45+3MFD 370/440V ROUND RUN CAPACITOR

CAP-45/3/440R

45+3MFD 370/440V ROUND RUN CAPACITOR
55+5MFD 370/440V OVAL RUN CAPACITOR

CAP-55/5/440

55+5MFD 370/440V OVAL RUN CAPACITOR
55+5 MFD 370/440V ROUND RUN CAPACITOR

CAP-55/5/440R

55+5 MFD 370/440V ROUND RUN CAPACITOR
70MFD 370/440V OVAL RUN CAPACITOR

CAP-70/440

70MFD 370/440V OVAL 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.