Littelfuse SPDN-C240-1P - Surge protection devices (SPDs) provide equipment protection from transient overvoltage events lasting micro-seconds. By limiting the overvoltage to the equipment during these events, costly damage and downtime can be mitigated. The surge protection devices for the 1+0 configuration are available for 60 V to 600 V nominal voltage sub-distribution board applications.
Littelfuse

SPDN-C240-1P

Alternate Item Number: SPDN-C240-1P

UPC: 079458294873


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Installation InstructionsComputer-Aided (CAD) ModelSpecification Sheet

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Overview

The Littelfuse SPDN-C240-1P surge protection device (SPDN-C240-1P) is a 1+0 configuration SPD designed for sub-distribution board applications with nominal voltages ranging from 60V to 600V. This device clamps transient overvoltage events lasting microseconds, preventing costly equipment damage and downtime by limiting overvoltage to protected devices. The 1+0 configuration indicates a single-phase system with no neutral connection, making it ideal for DC sub-distribution systems where space and simplicity are critical. The SPDN-C240-1P is manufactured in the USA by Littelfuse, a trusted name in electrical protection solutions. It is part of a broader category of surge protection devices (SPDs) used in industrial, commercial, and utility applications to safeguard sensitive electronics, control systems, and power distribution infrastructure. The device is rated for continuous operation at 240V DC, with transient protection extending up to 600V, ensuring compatibility with a wide range of DC sub-distribution systems. By integrating the SPDN-C240-1P into your system, you mitigate the risk of transient-induced failures, reduce maintenance costs, and extend the lifespan of connected equipment.
  • 1+0 configuration for single-phase DC sub-distribution systems
  • Protects equipment from transient overvoltage events lasting microseconds
  • Nominal voltage range: 60V to 600V
  • Manufactured in the USA by Littelfuse
  • Limits overvoltage to prevent costly damage and downtime

Specifications

Application
Equipment protection from transient overvoltages
Brand Name
Littelfuse
Poles
1+0
Series
SPDN
Special Features
NEMA style for external panel mount
Standard
UL, cUL
Sub Brand
SPDN Series
Type
UL Type 1 Surge Protection
Voltage Rating
240 V DC
Voltage Rating
60-600 V DC
Power supply for DIN-rail

PS-60

Power supply for DIN-rail
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24U 21.34W 31.5D CABINET BLK

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6U PERF PANEL

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6U PERF PANEL
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DIN Rail ? DIN 35

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DIN Rail ? DIN 35
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This TX6A 10Gig Cat 6A STP Patch Cord is a 12-Meter, Int'l Grey cord constructed of 26 AWG, shielded, twisted pair, stranded, CM/LSZH cable and with high-performance modular plugs. Its tangle-free latch prevents snags and ensures a fast release, streamlining moves, adds, and changes. The slender strain relief boot provides easy access in high-density applications. Enabled with RapidID, the product has pre-installed barcodes for simple port mapping using RapidID software.

STP6X12MIG

This TX6A 10Gig Cat 6A STP Patch Cord is a 12-Meter, Int'l Grey cord constructed of 26 AWG, shielded, twisted pair, stranded, CM/LSZH cable and with high-performance modular plugs. Its tangle-free latch prevents snags and ensures a fast release, streamlining moves, adds, and changes. The slender strain relief boot provides easy access in high-density applications. Enabled with RapidID, the product has pre-installed barcodes for simple port mapping using RapidID software.
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CESUM3-C15

Membrane plate cable entry system offers a good strain relief while maintaining IP/NEMA ingress sealing rating. The CESUM3-C15 is a Rectangular Un-Terminated Cable Entry System, 4.1" (103 mm) Long, with 8 Openings 0.12" (3.0 mm) to 0.31" (8 mm), 3 Openings 0.20" (5.1 mm) to 0.35" (9.0 mm), 4 Openings 0.3" (7.5 mm) to 0.47" (12.0 mm). Color is Black. Standard Package Quantity is 1 PC.

How to Install the SPDN-C240-1P Surge Protective Device

This guide provides step-by-step instructions for installing and configuring the SPDN-C240-1P Surge Protective Device (SPD) safely and effectively.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors

  1. Pre-Installation Inspection

    Inspect the shipping container and the SPD for any damage. If damage is found, file a claim with the shipping company.

  2. Verify Voltage Rating

    Use a multimeter to check the voltage of the electrical system. Ensure that the SPD voltage rating matches the system voltage before proceeding.

  3. Power Down the Panel

    Turn off the power to the panel where the SPD will be installed. Confirm that the panel is de-energized using a multimeter.

  4. Mount the SPD

    Remove an appropriately sized knockout from the panel. Securely mount the SPD to the panel using the mounting screws provided.

  5. Connect Conductors

    Connect the conductors to the SPD, ensuring that they are as short and straight as possible. Use the following color codes: black for energized, white for neutral, green for ground, and orange for Hi-Leg if applicable.

  6. Bond the System

    Ensure that the system is properly bonded according to NEC® requirements. Verify that there are no faults in the system before energizing the SPD.

  7. Energize the System

    Turn the power back on to the panel. Confirm that the SPD indicators are functioning properly. If the audible alarm sounds, immediately de-energize and contact Littlefuse.

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.