Littelfuse CAP-15/440R - 15MFD 370/440V ROUND RUN CAPACITOR
Littelfuse

CAP-15/440R

UPC: 811068035152


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Specification Sheet

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Minimum Qty: 10

Multiplier: 10

*Contact for lower quantities*

Overview

The **Littelfuse CAP-15/440R** is a high-performance **15MFD round run capacitor** engineered for demanding industrial motor applications, delivering reliable performance in harsh operating environments. Designed with a **370/440V voltage rating**, this capacitor is optimized for single-phase motors, pumps, HVAC systems, and other industrial equipment where consistent power factor correction and phase shifting are critical. Built to Littelfuse’s rigorous quality standards, the CAP-15/440R ensures long-term durability, minimal maintenance, and enhanced operational efficiency, making it a trusted choice for engineers and maintenance professionals across industries such as manufacturing, agriculture, and commercial facilities. Run capacitors like the **Littelfuse CAP-15/440R** play a pivotal role in improving motor efficiency by providing the necessary phase shift between the start and run windings of single-phase induction motors. This phase shift generates a rotating magnetic field, enabling smoother motor startup and sustained operation under load. The **15 microfarad (MFD) capacitance** of this model is specifically selected for motors operating within its voltage range, ensuring optimal performance without overloading the system. Its **round design** facilitates easy mounting in tight enclosures, while the robust construction resists vibration, moisture, and temperature extremes—common challenges in industrial settings. Industrial professionals rely on **Littelfuse** for capacitors that meet the rigorous demands of heavy-duty applications. The **CAP-15/440R** is part of Littelfuse’s trusted line of motor run capacitors, known for their precision engineering and adherence to international standards such as **UL, CE, and RoHS compliance**. Whether used in **HVAC systems, refrigeration units, conveyor systems, or agricultural machinery**, this capacitor ensures stable voltage levels, reduces energy waste, and extends the lifespan of connected motors. Its **compact footprint** and **screw-terminal design** simplify installation, allowing for quick integration into existing control panels or motor starters. Selecting the right run capacitor involves matching capacitance (MFD) and voltage ratings to the motor’s specifications. The **Littelfuse CAP-15/440R** is ideal for motors requiring a **15MFD capacitance** and a **370/440V operating range**, such as those found in **pumps, fans, compressors, and machine tools**. Professionals should verify compatibility with the motor’s nameplate data before installation, ensuring the capacitor’s voltage rating exceeds the system’s maximum voltage by at least 10% for safety and longevity. Proper sizing not only improves motor efficiency but also prevents premature failure due to overheating or voltage spikes. Littelfuse’s reputation as a leader in circuit protection and power quality solutions is built on decades of innovation and reliability. The **CAP-15/440R** exemplifies this commitment, offering a balance of performance, durability, and ease of use. With a **UNSPSC code of 32121500** (indicating its classification as a capacitor for industrial use), this product is readily available through authorized distributors, ensuring quick procurement for maintenance, repair, and operations (MRO) teams. For industrial operators seeking a dependable run capacitor that enhances motor performance while reducing downtime, the **Littelfuse CAP-15/440R** is a proven solution backed by a manufacturer trusted worldwide.
  • 15 microfarad (MFD) capacitance for optimal motor phase shifting
  • 370/440V voltage rating for industrial motor applications
  • Round design for easy installation in tight enclosures
  • Built to Littelfuse’s stringent quality and compliance standards (UL, CE, RoHS)
  • Ideal for HVAC systems, pumps, fans, and agricultural machinery

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
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.