Authorized Littelfuse Distributor
Littelfuse CAP-50/440 - 50 MFD 370/440V OVAL RUN CAPACITOR

Littelfuse CAP-50/440 50 MFD 370/440V OVAL RUN CAPACITOR

UPC: 811068036272


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Specification Sheet

Contact for Pricing

Minimum Qty: 10

Multiplier: 10

*Contact for lower quantities*

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Littelfuse CAP-50/440 is a premium 50 MFD oval run capacitor engineered to deliver unmatched reliability in industrial motor applications. Designed with a robust 370/440V voltage rating, this capacitor ensures optimal phase balance and energy efficiency, reducing operational costs while extending equipment lifespan. Built for durability, it withstands harsh industrial environments, including extreme temperatures, voltage fluctuations, and mechanical stress, making it ideal for demanding applications such as HVAC systems, pumps, compressors, and industrial machinery. Key features of the Littelfuse CAP-50/440 include: - **High Voltage Rating (370/440V):** Provides stable performance across a wide voltage range, ensuring consistent motor operation even in unstable power conditions. - **Oval Design:** Compact and space-efficient, the oval shape allows for easy installation in tight enclosures, reducing mounting complexity and saving valuable panel space. - **50 MFD Capacitance:** Optimizes motor starting and running efficiency, reducing energy losses and improving overall system performance. - **Industrial-Grade Durability:** Constructed with high-quality materials to resist corrosion, moisture, and thermal stress, ensuring long-term reliability in harsh environments. - **Wide Application Compatibility:** Suitable for single-phase motors in HVAC systems, refrigeration units, agricultural machinery, and industrial pumps, where consistent phase balance is critical for performance. Industrial professionals rely on Littelfuse for electrical components that combine precision engineering with proven durability. The CAP-50/440 is part of Littelfuse’s trusted capacitor series, known for meeting stringent industry standards and delivering superior performance in critical applications. Whether you're maintaining legacy systems or specifying components for new installations, this capacitor ensures reduced downtime, lower maintenance costs, and enhanced motor efficiency. Installation is straightforward, with clear terminal markings and a compact footprint that fits standard mounting configurations. For optimal performance, ensure proper sizing based on motor specifications and operating conditions. Littelfuse provides comprehensive technical support and documentation to assist engineers and technicians in selecting the right capacitor for their applications. Choose the Littelfuse CAP-50/440 for a capacitor that combines reliability, efficiency, and durability—backed by a manufacturer with decades of expertise in industrial electrical protection and power management.
  • 50 MFD capacitance for optimal motor efficiency
  • 370/440V voltage rating for stable performance in unstable power conditions
  • Oval design for space-efficient installation in tight enclosures
  • Industrial-grade durability for harsh environments
  • Compatible with HVAC systems, pumps, compressors, and industrial machinery

Specifications

Material
High-quality dielectric materials
Mounting Type
Standard mounting configurations
Series
CAP
Size
Oval
Voltage Rating
370/440 V
25+3MFD 370/440V OVAL RUN CAPACITOR

CAP-25/3/440

25+3MFD 370/440V OVAL RUN CAPACITOR
CAPACITOR CMRW60D34 P0 B TDEXP

RCP-60/400V

CAPACITOR CMRW60D34 P0 B TDEXP
40+7.5MFD 370/440V OVAL RUN CAPACITOR

CAP-40/7.5/440

40+7.5MFD 370/440V OVAL RUN CAPACITOR
45MFD 370/440V ROUND RUN CAPACITOR

CAP-45/440R

45MFD 370/440V ROUND RUN CAPACITOR
45+5 MFD 370/440V ROUND RUN CAPACITOR

CAP-45/5/440R

45+5 MFD 370/440V ROUND RUN CAPACITOR
45+7.5MFD 370/440V ROUND RUN CAPACITOR

CAP-45/7.5/440R

45+7.5MFD 370/440V ROUND RUN CAPACITOR
60+10MFD 370/440V OVAL RUN CAPACITOR

CAP-60/10/440

60+10MFD 370/440V OVAL RUN CAPACITOR
55MFD 370/440V ROUND RUN CAPACITOR

CAP-55/440R

55MFD 370/440V ROUND RUN CAPACITOR

Frequently Asked Questions

What is the operating temperature range for HCK Series capacitors?

The operating temperature range is -40 °C to 70 °C, with a maximum of 70 °C.

What is the rated AC voltage for HCK Series capacitors?

The rated AC voltage is 370 and 440 V ac. Alternative voltages may be available by contacting the factory.

What is the capacitance tolerance for these capacitors?

The capacitance tolerance available for the HCK Series capacitors is 3%.

What is the expected operating life of an HCK Series capacitor?

The capacitors are designed for 22,000 hours of operation with 94% survival. 60,000 hours is also available.

What type of connections are used for the HCK Series capacitors?

Coil terminal connections are .0250” x 0.032” quick connect terminals.

What are the primary applications for HCK Series capacitors?

These capacitors are used in single-phase motor applications for improved torque and efficiency, commonly in HVAC/R, food & beverage, pool & spa, motors, and electronics.

What is the internal protection feature of the HCK Series capacitors?

They have a UL recognized internal protection bridge capable of interrupting up to 10k amps.

What is the dissipation factor for HCK Series capacitors?

The maximum dissipation factor for these capacitors is 0.1%.

What is the leakage current limit for HCK Series capacitors?

The maximum leakage current for HCK Series capacitors is 30 uA.

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.