Littelfuse CAP-70/5/440 - 70+5MFD 370/440V OVAL RUN CAPACITOR
Littelfuse

CAP-70/5/440

UPC: 811068034759

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Overview

The Littelfuse CAP-70/5/440 Oval Run Capacitor is a premium-grade, dual-voltage capacitor engineered to deliver unmatched performance in industrial motor applications. Designed for systems requiring precise voltage regulation and stable capacitance, this capacitor combines a 70+5µF rating with a robust 370/440V rating to ensure reliable operation under demanding conditions. Whether used in HVAC systems, pumps, compressors, or other heavy-duty machinery, the CAP-70/5/440 provides the consistency and durability needed to extend motor life and reduce unscheduled downtime. Oval run capacitors like the Littelfuse CAP-70/5/440 are critical components in single-phase AC motor circuits, where they supply the necessary phase shift to initiate and maintain motor rotation. The dual-voltage design (370/440V) makes this capacitor versatile for both 370V and 440V systems, accommodating a wide range of industrial voltages without modification. Its oval shape is optimized for compact installation in tight motor control enclosures, offering space-saving advantages in modern industrial setups. Manufactured by Littelfuse, a global leader in circuit protection and power management solutions, the CAP-70/5/440 benefits from decades of engineering excellence and rigorous quality control. Littelfuse capacitors are trusted by professionals in HVAC, manufacturing, water treatment, and agricultural sectors for their long-term reliability and consistent performance. The 70+5µF capacitance tolerance ensures precise motor operation, minimizing energy waste and reducing heat generation—a key factor in preventing premature motor failure. Installation is straightforward, with clearly marked terminals for easy wiring in compliance with NEC and IEC standards. The capacitor’s robust construction resists vibration, moisture, and temperature extremes, making it suitable for harsh industrial environments. Regular maintenance checks are simplified due to its durable design, and Littelfuse’s extensive support network provides technical assistance and replacement parts worldwide. Professionals choose the Littelfuse CAP-70/5/440 for its proven track record in critical applications where failure is not an option. By selecting this capacitor, you invest in reduced maintenance costs, improved energy efficiency, and enhanced system reliability—all backed by Littelfuse’s industry-leading warranty and customer service. Whether retrofitting legacy systems or specifying components for new installations, the CAP-70/5/440 delivers the performance and peace of mind required in today’s industrial landscape.
  • Dual-voltage design (370/440V) for versatile industrial applications
  • 70+5µF capacitance for precise motor phase shift and efficiency
  • Oval form factor for compact installation in tight motor enclosures
  • Rugged construction resists vibration, moisture, and temperature extremes
  • Backed by Littelfuse’s industry-leading quality and support

Specifications

Series
CAP
Voltage Rating
370/440 V
25+3MFD 370/440V OVAL RUN CAPACITOR

CAP-25/3/440

25+3MFD 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.