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Littelfuse SPDN-A120-1P - 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-A120-1P Surge protection devices (SPDs) provide equipment protection from transient overvoltage…

Alternate Item Number: SPDN-A120-1P

UPC: 079458294705


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Installation InstructionsCAD File3D CAD Model (STEP)Specification Sheet

Contact for Pricing

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

Overview

The Littelfuse SPDN-C120-3Y is a 3-phase WYE Surge Protection Device (SPD) designed for sub-distribution board applications, offering robust protection against transient overvoltage events. This device mitigates costly damage and downtime caused by events like lightning strikes, utility switching, or inductive load switching. Engineered with a stacked high-energy Metal Oxide Varistor (MOV) design, the SPDN-C120-3Y provides direct mode protection across L-N, N-G pathways. It features a nominal system voltage of 208/120V and a Maximum Continuous Operating Voltage (MCOV) of 150V. The Voltage Protection Rating (VPR) is rated at 600V for L-N, 1000V for L-G, and 1000V for N-G. Response time is less than 25 nanoseconds (L-N / N-PE tA). Key specifications include a nominal surge current rating of 20 kA and a maximum surge current rating of up to 50 kA per phase. The UL1449 Short Circuit Current Rating (SCCR) is 200 kA. The operating temperature range is -35°C to +85°C (-31°F to +185°F), with an altitude rating of up to 4,000 meters (13,123 feet). Permissible operating humidity is 0% to 95% non-condensing. Features include a standard audible alarm and a single green LED per phase for operating state/fault indication. The device offers remote contact switching capacity of AC 240V/2A or 125V/1A. The housing is a polycarbonate NEMA 4X enclosure with an ultrasonically sealed lid, providing IP20 internal protection, corrosion, moisture, and environmental contaminant resistance. Pre-wired pigtails with 18-inch #12 AWG cables are included for typical connection. Certifications include UL 1449, 5th Edition, and cULus (E320116). It also complies with RoHS 2 Directive 2011/65/EU, Directive (EU) 2015/863, and REACH Regulation (EC) No 1907/2006. Applications include industrial control panels, data centers, renewable energy systems, and critical infrastructure. SKU: SPDN-C120-3Y. Manufacturer: Littelfuse.
  • 3-phase WYE Surge Protection Device (SPD) for sub-distribution boards
  • Nominal System Voltage: 208/120V; MCOV: 150V; VPR: 600V (L-N), 1000V (L-G/N-G)
  • Stacked High-Energy MOV design with <25ns response time
  • 20 kA nominal surge current rating; 50 kA maximum surge current per phase
  • UL1449 Type 1; UL1449 SCCR: 200 kA; NEMA 4X polycarbonate enclosure

Specifications

Application
Equipment protection from transient overvoltages
Brand Name
Littelfuse
Color
Green
Connection Type
Pre-wired pigtails with 18-inch #12 AWG cables
Current Rating
20kA
IP Rating
IP20
Material
Polycarbonate
Mounting Type
Panel or enclosure
Nema Rating
NEMA 4X
Poles
1+0
Series
SPDN
Special Features
NEMA style for external panel mount
Standard
UL, cUL
Sub Brand
SPDN Series
Type
UL Type 2 Surge Protection
Voltage Rating
208/120V
5-port Ethernet Switch

SDI-550

5-port Ethernet Switch
Fiber cable ODC to SC duplex - 670mm

Fiber cable ODC SC Duplex 670mm

Fiber cable ODC to SC duplex - 670mm
Power supply for DIN-rail

PS-60

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

REFK1904231BK1

24U 21.34W 31.5D CABINET BLK
Symmetrical DIN rail 2m 35x15x1,5 steel z-b

50000043

Symmetrical DIN rail 2m 35x15x1,5 steel z-b
Super-Safeway® Multiple Outlet Box, Extended Depth, 2-Sided, F2 (1/2") Cord Grip Body, with Flip Lids for (2) Duplex Not Included

3085

Super-Safeway® Multiple Outlet Box, Extended Depth, 2-Sided, F2 (1/2") Cord Grip Body, with Flip Lids for (2) Duplex Not Included
Cable Manager, fits 19-inch open rack, Black, Steel

ECK19H

Cable Manager, fits 19-inch open rack, Black, Steel
6U PERF PANEL

PPFS19010BK

6U PERF PANEL
OM1 2 fiber, 16mm jacket, patchcord, Riser (OFNR) rated, LC duplex to SC duplex, Std IL

F62ERLNSNSNM002

OM1 2 fiber, 16mm jacket, patchcord, Riser (OFNR) rated, LC duplex to SC duplex, Std IL
The Mini-Com Flush Mount Modular Patch Panel accepts up to 24 Mini-Com Modules for unshielded applications in 1 RU, and mounts to 19 inch and 23 inch racks and cabinets. The panel mounts flush with the rack and can be identified with adhesive labels and is black.

CPP24FMWBLY

The Mini-Com Flush Mount Modular Patch Panel accepts up to 24 Mini-Com Modules for unshielded applications in 1 RU, and mounts to 19 inch and 23 inch racks and cabinets. The panel mounts flush with the rack and can be identified with adhesive labels and is black.
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.

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.
The TX6A™ 10Gig Cat 6A UTP Patch Cord is a 1-Meter, Blue cord constructed of 24 AWG, unshielded, twisted pair stranded, LSZH (60332-1) cable with high-performance modular plugs. Its MaTriX Tape Technology limits alien crosstalk, ensuring 10 Gb/s transmission. The tangle-free latch prevents snags and ensures a fast release, streamlining moves, adds, and changes. Enabled with RapidID, the product has pre-installed barcodes for simple port mapping using RapidID software.

UTP6AL1MBU

The TX6A™ 10Gig Cat 6A UTP Patch Cord is a 1-Meter, Blue cord constructed of 24 AWG, unshielded, twisted pair stranded, LSZH (60332-1) cable with high-performance modular plugs. Its MaTriX Tape Technology limits alien crosstalk, ensuring 10 Gb/s transmission. The tangle-free latch prevents snags and ensures a fast release, streamlining moves, adds, and changes. Enabled with RapidID, the product has pre-installed barcodes for simple port mapping using RapidID software.

Frequently Asked Questions

What is the maximum surge current rating for the SPDN-A series?

The SPDN-A series has a maximum surge current rating of up to 130 kA per phase.

What is the response time for the SPDN-A surge protective device?

The response time for the SPDN-A series is less than 25 nanoseconds for L-N / N-PE tA.

What is the operating temperature range for the SPDN-A series?

The operating temperature range for the SPDN-A series is -40 °C to +85 °C (-40 °F to +185 °F).

What are the direct modes of protection offered by the SPDN-A series?

The SPDN-A series offers direct modes of protection including L-N, L-G, and N-G.

What is the UL Type rating for the SPDN-A surge protective devices?

The SPDN-A series is rated as UL Type 2.

Does the SPDN-A series have phase loss monitoring?

Yes, phase loss monitoring is a standard feature on the SPDN-A series.

What are the dimensions of the SPDN-A series product?

The product dimensions for the SPDN-A series are H 2.75 inches, W 7.95 inches, and D 3.06 inches.

What is the short circuit current rating for the SPDN-A series?

The UL1449 short circuit current rating for the SPDN-A series is 200 kA.

What is the nominal system voltage for the SPDN-A120-1P model?

The nominal system voltage for the SPDN-A120-1P model is 120V.

What is the Maximum Continuous AC Operating Voltage (MCOV) for SPDN-A120-1P?

The Maximum Continuous AC Operating Voltage (MCOV) for the SPDN-A120-1P is 180V.

How to Install the SPDN-A120-1P Surge Protective Device

This guide provides step-by-step instructions for installing and configuring the SPDN-A120-1P Surge Protective Device to protect your equipment from transient overvoltage events.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Wire connectors

  1. Mount the device

    Secure the SPDN-A120-1P to a suitable mounting surface using the provided mounting screws. Ensure it is level and firmly attached.

  2. Connect the wiring

    Using wire connectors, connect the input and output wires to the appropriate terminals on the device. Ensure all connections are tight and secure.

  3. Verify the installation

    Use a multimeter to check the voltage at the input terminals to ensure proper connection. Confirm that the device is functioning correctly by observing the indicator lights.

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.