Mersen STXT480S10 - The Mersen Surge-Trap Type 1 STXT480S10 is a Type 1 Surge Protective Device (SPD) designed for comprehensive overvoltage protection. It features integrated EMI/RFI filtering and provides LED indication on each phase for status monitoring. Optional remote indication is available. This unit offers surge capacities of up to 200kA. At its core is Mersen's proprietary TPMOV® technology, ensuring the highest level of safety and eliminating the need for additional overcurrent protection. The STXT480S10 offers installation flexibility, suitable for both line and load side connections, making it ideal for applications from the service entrance down to distribution and branch panels. Manufactured in the US.
Mersen

STXT480S10

Alternate Item Number: STXT480S10

UPC: 782001504076


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Overview

The Mersen Surge-Trap Type 1 STXT480S10 (SKU: STXT480S10) is a robust Type 1 Surge Protective Device (SPD) engineered for comprehensive overvoltage protection. Manufactured in the USA, this unit offers substantial surge capacities of up to 200kA, safeguarding critical electrical systems. At its core lies Mersen's proprietary TPMOV® technology, which provides the highest level of safety and eliminates the need for additional overcurrent protection, simplifying installation and maintenance. The STXT480S10 features integrated EMI/RFI filtering to ensure clean power delivery and reduce electromagnetic interference. For immediate status monitoring, each phase is equipped with LED indication. Optional remote indication is also available for enhanced system oversight. This SPD's design prioritizes installation flexibility, allowing for both line and load side connections. This adaptability makes it suitable for a wide range of applications, from the main service entrance down to distribution and branch panels, ensuring protection at multiple points within an electrical system. Its UNSPSC code is 39121610.
  • Type 1 Surge Protective Device (SPD)
  • 200kA Surge Capacity
  • Integrated EMI/RFI Filtering
  • Mersen's Proprietary TPMOV® Technology
  • LED Status Indication per Phase

Specifications

Application
Service entrance at low to medium risk exposure level Commercial and Industrial Distribution Panels or Control Branch Panels Any critical application that requires a high to medium level of protection
Color
Blue
Connection
Pre-wired
Connection Type
Screw Terminal
Frequency Rating
50/60 HZ
Material
Polycarbonate
Material
Poly
Mounting
Panel or Wall Mount
Nema Rating
Type 4X
Operating Temperature, Maximum
185 F
Operating Temperature, Maximum
85 C
Operating Temperature, Minimum
-40 F
Operating Temperature, Minimum
-40 C
Phase
Split Phase
Poles
3P+G
Series
STXT
Size
7.4 x 7.08 x 3.68;187.96 x 179.832 x 93.472 in;mm
Special Features
Designed with industry leading Mersen TPMOV technology Standard features include LED phase loss indication and EMI/ RFI filter Up to -50dB from 10kHz to 100MHz Optional Form C Dry Contacts and audible alarm with silence button Mounting hub and mounting feet for installation flexibility Up to 10 Modes of Protection 10-year manufacturer’s warranty
Standard
ANSI/UL 1449 5th Edition, Type 1 SPD, File E210793 CSA C22.2, Type 1 SPD ANSI/IEEE C62.41.1, C62.41.2, C62.45 UL96A Lightning Protection RoHS Compliant
Type
NEMA UL CSA TYPE 1
Type of Indicators
LED
UL SPD Type
Type 1
Voltage Rating
480 VAC
Package Dimensions (L x W x H)
7.4 in x 7.08 in x 3.68 in
Package Dimensions (L x W x H)
187.96 mm x 179.832 mm x 93.472 mm
Package Weight (Imperial)
3.700 lb
Package Weight (Metric)
1.678 kg
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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.