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Mersen STT4X2401PG - Mersen's Surge-Trap® Type 1 SPD is a fail-safe and economical solution for applications that require a NEMA-style SPD. It is UL 1449 Third Edition approved and offers a wide range of voltage configurations to meet all needs in its class. The Surge-Trap Type 1 SPD features Mersen's patented TPMOV® technology eliminating the need for additional overcurrent protection, thus providing substantial cost savings. 240 Volts single phase system type nema 4X .

Mersen STT4X2401PG Mersen's Surge-Trap® Type 1 SPD is a fail-safe and economical solution for applications…

Alternate Item Number: 782001445072

UPC: 782001445072


Documents & Media
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 Mersen Surge-Trap® Type 1 SPD (SKU: STT4X2401PG) is a compact, panel-mount surge protection device engineered for 240V single-phase systems, including NEMA 4X applications. This UL 1449 Third Edition Type 1 listed device delivers a 200kA short circuit current rating (SCCR) and a 50kA maximum discharge current per phase, providing robust protection against transient voltage events such as lightning strikes and switching surges. Its NEMA 4X enclosure is rated for outdoor and corrosive environments, withstanding temperatures from -40°C to +85°C, making it suitable for harsh industrial and commercial applications. The unit includes integral leads (16" #12 AWG) and offers flexible installation options with a ¾" threaded hub or direct mounting feet. Status LEDs provide clear visual end-of-life indication, allowing for easy maintenance and replacement planning. The compact design supports panel mounting in a wide range of applications, including AC distribution, power supplies, industrial ratings, telecommunications, residential systems, IT/data centers, and water/wastewater facilities. With a response time of less than 25 nanoseconds and operation at 50-60 Hz, the STT4X2401PG ensures rapid and reliable surge suppression. The device features Mersen's patented TPMOV® technology, eliminating the need for additional overcurrent protection and providing substantial cost savings. It can be installed upstream or downstream of the main disconnect, offering versatile placement options in electrical systems.
  • UL 1449 Third Edition Type 1 listed for indoor/outdoor use
  • 200kA short circuit current rating (SCCR) and 50kA max discharge current per phase
  • NEMA 4X enclosure rated for outdoor and corrosive environments (-40°C to +85°C)
  • TPMOV® technology eliminates need for additional overcurrent protection
  • Panel-mount design with ¾" threaded hub or direct mounting feet; 16" #12 AWG integral leads
  • 1-pole configuration for flexible installation in tight spaces
  • Hot-swappable modules (where applicable) for minimal downtime
  • Ideal for outdoor enclosures, data centers, and critical infrastructure

Specifications

Application
AC distribution Power supplies Industrial Commercial Telecommunications Residential IT / Data centers
Brand Name
Mersen
Connection
Pre-wired With 16 (0.4m) 12 AWG Conductors
Connection Type
Integral Leads (16" #12 AWG)
Frequency
50-60 Hz
Material
TPMOV (Thermal Protected Metal Oxide Varistor)
Mounting
Panel / Screw
Mounting Type
Panel Mount
NEMA Rating
4X
Poles
1P
Series
Surge-Trap Type 1
Short Circuit Rating
200 kA
Short-Circuit Rating
200 kA
Special Features
Compact design Easy to mount No additional overcurrent protection devices required 200kA Short circuit current rating (SCCR) UL 1449 Third Edition Type 1 Listed Nominal discharge current (In) of 20KA (10KA on select models) For indoor, NEMA 2 applications For outdoor, NEMA 4X applications Status LEDs Wire markers 2 year warranty
Standard
UL 1449 Third Edition Approved, File No E210793 Type 1 Listed for United States Type 2 Listed for Canada RoHS compliant ANSI/IEEE C62.41
Sub Brand
Surge-Trap®
Type
Surge-Trap Type 1 & 2
Type Of Indicators
LED
Voltage Rating
240 Vac
Package Dimensions (L x W x H)
8 IN x 6 IN x 4 IN
Package Dimensions (L x W x H)
20.32 cm x 15.24 cm x 10.16 cm
Package Weight (Imperial)
1.628 L
Package Weight (Metric)
0.738 kg
Power supply for DIN-rail

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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.
Symmetrical DIN rail 2m 35x15x1,5 steel z-b

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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.
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24U 21.34W 31.5D CABINET BLK

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Fiber cable ODC to SC duplex - 670mm

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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.

Frequently Asked Questions

What is the maximum discharge current rating?

The STT4X2401PG has a maximum discharge current rating of 50kA per phase.

What is the operating temperature range for this SPD?

The operating and storage temperature range is -40°C to +85°C.

What type of technology does the Surge-Trap use?

The Surge-Trap features TPMOV® technology, making it a 'no-fuse' surge suppressor.

Does this SPD require additional overcurrent protection?

No, the Surge-Trap Type 1 SPD does not require the use of additional overcurrent protection devices.

What is the SCCR for the STT4X2401PG?

The Short Circuit Current Rating (SCCR) for this SPD is 200kA.

What is the response time of the Surge-Trap?

The response time for the Surge-Trap is less than 25 nanoseconds.

What is the warranty period for the Surge-Trap Type 1 SPD?

The Surge-Trap Type 1 SPD comes with a two-year warranty.

What are the enclosure ratings for the STT4X model?

The STT4X model features a NEMA 4X Polycarbonate enclosure for outdoor applications.

Frequently Asked Questions about Mersen

What industries and applications are Mersen products used for?

Mersen products are used across diverse industrial sectors including solar power, electric vehicles, buildings/construction, industrial automation, power distribution, HVAC, elevators, telecommunications, and specialty manufacturing. Key application areas include circuit protection, surge protection, battery module protection, electrical safety systems, and power management for residential, commercial, and utility-scale installations.

What are the main product lines offered by Mersen?

Mersen offers five primary electrical power product lines: IEC and UL/CSA Fuses and Fusegear, Surge Protection, Low Voltage Disconnect Switches, Power Distribution Blocks, and Engineered Solutions. Their comprehensive range includes specialized components like high-speed fuses, modular fuse holders, surge arresters, and custom-engineered electrical protection systems for industrial and power management applications.

What are the key features of Mersen products?

Mersen products feature advanced electrical protection and power management solutions with key characteristics including finger-safe design, compact modularity, and high-performance safety features. Their product lines span electrical power components like fuses, surge protection, power distribution blocks, and specialized solutions for industrial, solar, and building applications. Critical features include UL/CSA approvals, high short-circuit current ratings, and innovative technologies like the Fuse Control™ program that minimize electrical risks and optimize system performance.

What environmental ratings do Mersen products have?

Mersen products meet rigorous environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13, CSA Type 1, 2, 3, 4, 4X, 12, and 13, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They feature IEC 60529 IP66 protection, with enhanced UV inhibitors for outdoor weathering and operating temperatures ranging from -40°C to 130°C (-40°F to 266°F). These ratings ensure superior protection in wet, corrosive, and challenging industrial environments.

What accessories are available for Mersen products?

Mersen offers multiple accessories for their fuse blocks and systems, including safety pullers (DFC3M and DFC3LP), DIN-rail adapters (DRM), bus bars, auxiliary contacts, and specialized mounting hardware. Key accessories include the DFC3M safety puller for 1-1/2" x 13/32" midget or Class CC fuses, the DRM adapter for mounting 303 series fuse blocks on DIN-rail, and UltraSafe fuse module accessories like bus bars and auxiliary contacts that enable module interconnection and monitoring.

How are Mersen products typically installed?

Mersen products are typically installed in electrical distribution systems, control panels, and industrial automation environments using multiple mounting options. These include service entrance panel mounting, distribution panel installation, control panel DIN rail mounting, and custom engineered solutions like Fused Coordination Panelboards. Installation depends on the specific product type, such as fuses, surge protective devices, or switches, and is designed to provide electrical protection and circuit safety in various industrial and commercial applications.

What certifications and standards do Mersen products comply with?

Mersen products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Our products meet rigorous safety and performance standards for industrial applications across North America, China, Russia, and other global markets, ensuring compliance and reliability in electrical power and advanced materials solutions.

What technical support does Mersen offer?

Mersen provides comprehensive technical support through multiple channels, including technical experts located in your time zone who can assist with product selection, application guidance, and troubleshooting. Their Fuse Control™ program offers a free Fuse Inventory Audit & Analysis, and customers can access technical resources through their sales representatives and online platform ep.mersen.com.