Littelfuse SPFRHV4001ST - 1000V VDC 400A CLASS H HOLDER STUD MOUNT. The SPFRHD series is specifically designed for 1000 VDC SPFR fuses ranging up to 400 A in current. It is UL Recognized to 1000 VDC.
Littelfuse

SPFRHV4001ST

UPC: 079458186581

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Overview

The Littelfuse SPFRHV4001ST is a robust fuse holder designed for high-voltage DC applications, specifically engineered for SPFR fuses up to 400A. This component is UL Recognized (File: E339112) for 1000 VDC, ensuring compliance with stringent safety standards. Its construction features a durable melamine body and copper alloy end bells, providing excellent thermal stability and resistance to harsh operating conditions, with an operating temperature range of -40°C to +125°C. The stud mount design ensures a secure and reliable connection, crucial for preventing electrical faults in demanding systems. With a 1000V DC voltage rating and a 400A current capacity, the SPFRHV4001ST meets IEC 60269-6 standards and is RoHS compliant. It is ideally suited for critical applications such as solar photovoltaic (PV) arrays, electric vehicle (EV) charging infrastructure, industrial DC distribution networks, and battery charge controllers. The Class H classification signifies its high-interrupting-capacity capabilities, essential for protecting sensitive equipment from overcurrent events. The SPFRHV4001ST is optimized for use with Littelfuse SPFR fuses, facilitating fast-acting fault clearing to minimize downtime and protect valuable assets. The copper alloy end bells enhance electrical conductivity and resist corrosion, while the melamine body offers superior arc resistance and mechanical integrity. This fuse holder is an excellent choice for utility-scale solar farms, data centers, and heavy industrial machinery where high voltage, high current, and extreme temperatures are prevalent. Trust Littelfuse's extensive experience in electrical protection for dependable performance in critical power systems.
  • 1000V DC Voltage Rating
  • 400A Current Capacity
  • Class H Classification
  • Stud Mount Design
  • Melamine Body and Copper Alloy End Bells
  • UL Recognized (File: E339112)
  • RoHS Compliant
  • Operating Temperature: -40°C to +125°C
  • Designed for SPFR Fuses up to 400A
  • Meets IEC 60269-6 Standards

Specifications

Application
Solar
Brand Name
Littelfuse
Connection Type
Stud Mount
Current Rating
400 A
Material
Melamine body, copper alloy end bells
Material
Melamine body and copper alloy end bells
Mounting Type
Stud Mount
Series
SPFRHD
Special Features
None
Standard
UL Recognized to 1000 VDC
Sub Brand
SPFRHV Series
Type
Fuse Holder
Voltage Rating
1000 Vdc
Package Dimensions (L x W x H)
2 IN x 1 IN x 1 IN
Package Dimensions (L x W x H)
5.08 cm x 25.4 mm x 25.4 mm
Package Weight (Imperial)
0.250 L
Package Weight (Metric)
0.113 kg
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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.