Littelfuse CAP-45/440R - 45MFD 370/440V ROUND RUN CAPACITOR
Littelfuse

CAP-45/440R

UPC: 811068035398


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Specification Sheet

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Minimum Qty: 10

Multiplier: 10

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Overview

The Littelfuse CAP-45/440R 45MFD 370/440V Round Run Capacitor is a precision-engineered solution designed to enhance the performance, efficiency, and reliability of industrial electrical systems. As a critical component in motor circuits, power factor correction systems, and voltage regulation applications, this capacitor delivers consistent capacitance and voltage handling to ensure optimal operation under demanding conditions. Built by Littelfuse, a global leader in circuit protection and power management solutions, the CAP-45/440R combines robust construction with industry-leading specifications to meet the rigorous demands of modern industrial environments. This round run capacitor is engineered for applications where space efficiency and reliability are paramount. Its compact, round design allows for easy integration into motor control panels, HVAC systems, and industrial machinery, while its high-quality dielectric materials ensure long-term stability and resistance to voltage spikes. The 370/440V voltage rating makes it ideal for use in both single-phase and three-phase systems, providing the flexibility needed for a wide range of industrial setups. Whether used in motor starting, continuous run applications, or power factor correction, the CAP-45/440R ensures smooth operation and reduced energy losses. Key features of the Littelfuse CAP-45/440R include: - **High Reliability**: Designed for continuous operation in harsh industrial environments, withstanding temperature fluctuations, humidity, and electrical stress. - **Precision Capacitance**: Delivers a stable 45MFD capacitance to maintain optimal motor performance and power factor correction. - **Voltage Versatility**: Rated for 370/440V, making it suitable for a broad spectrum of industrial voltage systems. - **Durable Construction**: Built with high-quality materials to ensure longevity and resistance to corrosion, vibration, and mechanical stress. - **Easy Installation**: The round form factor simplifies mounting and wiring in tight spaces, reducing installation time and complexity. Industries that benefit from the Littelfuse CAP-45/440R include manufacturing, HVAC, water treatment, and renewable energy systems. In motor-driven applications, this capacitor improves efficiency by reducing reactive power, lowering energy costs, and extending the lifespan of motors and associated equipment. For power factor correction systems, it helps facilities comply with utility regulations, avoid penalties, and optimize electrical infrastructure performance. Littelfuse’s reputation for innovation and quality makes the CAP-45/440R a trusted choice among engineers, electricians, and maintenance professionals. With decades of experience in circuit protection and power management, Littelfuse ensures that each capacitor undergoes rigorous testing to meet or exceed industry standards. Whether you’re retrofitting an existing system or designing a new installation, the CAP-45/440R provides the reliability and performance needed to keep your operations running smoothly. For professionals seeking a dependable round run capacitor that combines durability, precision, and ease of use, the Littelfuse CAP-45/440R stands out as a top-tier solution. Its robust design and adherence to strict manufacturing standards make it an essential component for any industrial electrical system where performance and longevity are critical.
  • 45MFD capacitance for optimal motor performance and power factor correction
  • 370/440V voltage rating for versatile industrial applications
  • Round design for compact installation in tight spaces
  • Built for harsh environments with durable construction
  • Trusted Littelfuse quality for long-term reliability

Specifications

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.