Littelfuse PAL440 - FUSE PAL AUTO LINK 32V 9/16 BNT BOX 40A. PAL™ Fuses are available in current ratings up to 120 amperes, with either female or bolt-on terminals.
Littelfuse

PAL440

Alternate Item Number: 0PAL440.X

UPC: 079458014006


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Overview

The Littelfuse PAL440 (SKU: PAL440) is a robust automotive link fuse designed for critical overcurrent protection in industrial, automotive, and marine applications. This 32V, 40A fuse features a 9/16 BNT box terminal for secure, vibration-resistant connections. The PAL series offers current ratings up to 120 amperes, providing flexibility for diverse needs. Its bolt-on design simplifies installation onto bus bars or panels, reducing wiring complexity and enhancing serviceability compared to traditional blade fuses. Optimized for 12V and 24V systems, the PAL440 ensures compatibility with most automotive, marine, and light industrial equipment. Littelfuse, a century-old leader in circuit protection, ensures consistent performance and reliability, meeting industry standards. Typical applications include engine control units (ECUs), alternators, starter motors, navigation systems, bilge pumps, motor controllers, and power distribution panels. For installation, ensure proper torque (10-12 in-lbs) on the bolt-on terminal and verify fuse holder compatibility with the 40A and 32V ratings. Regular inspection for corrosion or damage is recommended, especially in high-vibration environments. Choose the Littelfuse PAL440 for dependable circuit protection where system integrity is paramount. The PAL440 is part of Littelfuse's extensive line of PAL Auto Link Fuses, known for their reliability and availability in various terminal types including female, male, bent, and locking female connectors. Color coding indicates amperage rating for easy identification. The catalog lists the PAL440 (0PAL440.X) as a 40A green fuse with a 9/16" Bent Male Terminal, suitable for applications requiring robust connection and protection up to 32V.
  • 32V DC voltage rating
  • 40A current rating
  • 9/16" Bent Male Terminal (BNT) for secure connection
  • Bolt-on design for easy installation on bus bars or panels
  • Robust overcurrent protection for critical circuits

Specifications

Application
Automotive
Brand Name
Littelfuse
Connection Type
9/16 BNT box terminal
Current Rating
40 A
Mounting Type
Bolt-On
Series
PAL
Standard
RoHS
Sub Brand
PAL Series
Voltage Rating
32 V
FUSE PAL AUTO LINK 32V FEMALE BOX 40A. PAL™ Fuses are available in current ratings up to 120 amperes, with either female or bolt-on terminals.

PAL040

FUSE PAL AUTO LINK 32V FEMALE BOX 40A. PAL™ Fuses are available in current ratings up to 120 amperes, with either female or bolt-on terminals.

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.