Littelfuse CAP-35/3/440R - 35+3 MFD 370/440V ROUND RUN CAPACITOR
Littelfuse

CAP-35/3/440R

UPC: 811068032519


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Specification Sheet

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Minimum Qty: 10

Multiplier: 10

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Overview

The **Littelfuse CAP-35/3/440R** is a premium **round run capacitor** engineered for high-performance industrial motor applications, including HVAC systems, compressors, and heavy-duty machinery. Designed with a **35+3 MFD capacitance** and a **370/440V voltage rating**, this capacitor delivers consistent power factor correction, ensuring optimal motor efficiency and reduced energy consumption. Built to withstand harsh operating conditions, the CAP-35/3/440R is ideal for demanding environments where reliability and longevity are critical. **Key Features & Benefits:** - **High-Performance Capacitance:** With a **35+3 MFD** rating, this capacitor provides the precise reactive power correction needed for single-phase motors, improving system efficiency and reducing utility costs. - **Robust Voltage Rating:** Rated for **370/440V**, the CAP-35/3/440R ensures stable operation even in fluctuating power conditions, protecting motors from voltage spikes and surges. - **Durable Construction:** The **round run capacitor** design is optimized for heat dissipation and vibration resistance, extending service life in industrial settings. - **Wide Application Compatibility:** Suitable for **HVAC systems, refrigeration units, pumps, and industrial compressors**, this capacitor meets the demands of critical applications where downtime is not an option. - **Compliance & Reliability:** Manufactured by **Littelfuse**, a global leader in circuit protection and power management, the CAP-35/3/440R adheres to stringent quality standards, ensuring long-term performance and safety. **Why Choose Littelfuse for Run Capacitors?** Littelfuse is a trusted name in industrial electrical components, known for innovation and reliability. The CAP-35/3/440R is part of a comprehensive line of **run capacitors** designed to enhance motor performance while minimizing maintenance costs. Professionals in **HVAC, manufacturing, and utilities** rely on Littelfuse capacitors for their **consistent performance, energy efficiency, and durability**. **Industry Applications:** - **HVAC Systems:** Improves compressor efficiency in air conditioning and refrigeration units. - **Industrial Machinery:** Powers pumps, fans, and other single-phase motors with precision. - **Commercial Equipment:** Ensures reliable operation in refrigeration systems, conveyor belts, and automated machinery. **Installation & Maintenance Tips:** - **Proper Sizing:** Always match the capacitor’s MFD and voltage rating to the motor’s specifications for optimal performance. - **Vibration Resistance:** Secure the capacitor to minimize mechanical stress and extend lifespan. - **Thermal Management:** Ensure adequate ventilation to prevent overheating in high-temperature environments. - **Regular Inspection:** Check for signs of wear, such as bulging or leakage, and replace if necessary to avoid motor damage. **Why This Capacitor Stands Out:** Unlike generic capacitors, the **Littelfuse CAP-35/3/440R** is built with **high-quality dielectric materials** and **precision engineering**, reducing the risk of failure in critical applications. Its **compact round design** allows for easy installation in tight spaces, while its **long service life** ensures cost-effective operation over time. For engineers and technicians seeking a **high-reliability run capacitor**, the CAP-35/3/440R is a top-tier choice backed by Littelfuse’s reputation for excellence.
  • 35+3 MFD capacitance for optimal motor efficiency
  • 370/440V voltage rating for stable operation in demanding environments
  • Round run capacitor design for heat dissipation and vibration resistance
  • Ideal for HVAC systems, compressors, pumps, and industrial machinery
  • Manufactured by Littelfuse, a leader in industrial electrical components

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
30+5 MFD 370/440V ROUND RUN CAPACITOR

CAP-30/5/440R

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

CAP-30/440R

30MFD 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.