Littelfuse CAP-3/440 - 3 MFD 370/440V OVAL RUN CAPACITOR
Littelfuse

CAP-3/440

UPC: 811068035671


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Specification Sheet

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Minimum Qty: 10

Multiplier: 10

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Overview

The Littelfuse CAP-3/440 is a robust and reliable 3 MFD oval run capacitor, meticulously engineered for demanding industrial motor applications. Designed to deliver consistent performance, this capacitor plays a crucial role in optimizing motor efficiency and extending operational lifespan. With its dual voltage rating of 370/440V, the CAP-3/440 offers exceptional versatility, ensuring compatibility with a wide range of industrial power systems and motor configurations. This makes it an indispensable component for maintaining peak operational parameters in various industrial settings. At its core, the primary function of a run capacitor like the Littelfuse CAP-3/440 is to improve the power factor of single-phase AC induction motors. By introducing a phase shift to the auxiliary winding, it enables the motor to start more efficiently and run at a more consistent speed under load. This leads to significant benefits, including reduced energy consumption, lower operating temperatures, and a decrease in mechanical stress on the motor components. For industrial operations, where energy costs and equipment reliability are paramount, these improvements translate directly into cost savings and enhanced productivity. The CAP-3/440's oval form factor is a common and practical design for many motor applications, allowing for straightforward integration into existing equipment. Littelfuse, a globally recognized leader in circuit protection and switching solutions, brings its extensive expertise and commitment to quality to this capacitor. Their products are known for their durability and adherence to stringent industry standards, providing peace of mind for engineers and maintenance professionals. When selecting a capacitor for critical industrial machinery, choosing a reputable manufacturer like Littelfuse is a key factor in ensuring long-term system integrity. Typical applications for the Littelfuse CAP-3/440 include, but are not limited to: * **HVAC Systems:** Crucial for the reliable operation of air conditioning units, furnaces, and ventilation fans in commercial and industrial buildings. * **Compressors:** Essential for the efficient starting and running of compressors used in refrigeration, industrial manufacturing, and pneumatic systems. * **Pumps:** Supports the consistent operation of industrial pumps in water treatment, fluid transfer, and agricultural applications. * **Industrial Machinery:** Powers various single-phase motors found in manufacturing equipment, conveyors, and processing machinery. Installation of run capacitors should always be performed by qualified personnel following appropriate safety protocols. The CAP-3/440's specifications are designed to meet the rigorous demands of continuous operation, making it a dependable choice for applications where downtime is costly. By investing in high-quality components like the Littelfuse CAP-3/440, businesses can ensure the optimal performance and longevity of their critical motor-driven equipment, contributing to overall operational efficiency and profitability.
  • 3 MFD capacitance for optimal motor performance
  • Dual voltage rating: 370/440V for broad compatibility
  • Oval form factor for easy integration into industrial equipment
  • Enhances motor efficiency and reduces energy consumption
  • Durable construction for reliable operation in demanding environments

Specifications

Series
CAP
Size
Oval
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.