Mersen STXT12S1004X - The Surge-Trap® Type 1 XT Series offers Advanced Technology. The XT features TPMOV® technology inside making it the safest product available. With line or load side installation flexibility, this unit is a great fit from the service entrance all the way down to each distribution and/or branch panel. 240 Volts single phase system type .
Mersen

STXT12S1004X

Alternate Item Number: 782001429218

UPC: 782001429218


Documents & Media
Specification Sheet

Contact for Pricing

Overview

The **Mersen Surge-Trap® XT Series Type 1 Surge Protector (SKU: STXT12S1004X)** sets the industry standard for advanced surge protection in industrial and commercial electrical systems. Engineered with **TPMOV® (Thermal Protected Metal Oxide Varistor) technology**, this surge protector delivers unmatched safety, reliability, and performance for 240V single-phase applications. Designed to safeguard critical infrastructure, the XT Series is ideal for service entrances, distribution panels, and branch circuits where consistent power quality is non-negotiable. **Why Choose the Surge-Trap® XT Series?** Mersen, a global leader in electrical protection solutions, has leveraged decades of expertise to develop the XT Series, ensuring superior protection against transient voltage spikes, surges, and other electrical anomalies. Unlike conventional surge protectors, the XT Series incorporates **TPMOV® technology**, which automatically disconnects the surge protector from the circuit in the event of thermal overload, preventing catastrophic failure and reducing fire hazards. This proactive safety mechanism makes it the **safest and most dependable choice** for high-stakes environments such as manufacturing plants, data centers, healthcare facilities, and renewable energy systems. **Key Features and Benefits:** - **Advanced TPMOV® Technology:** Ensures thermal protection and automatic disconnection during overloads, enhancing safety and longevity. - **Flexible Installation Options:** Can be installed on either the **line side or load side** of the electrical system, providing versatility for service entrances, distribution panels, and branch circuits. - **Robust Construction:** Built to withstand harsh industrial conditions, including high temperatures, humidity, and mechanical stress, ensuring long-term reliability. - **240V Single-Phase Compatibility:** Specifically designed for 240V single-phase systems, making it ideal for applications such as HVAC systems, pumps, motors, and sensitive electronic equipment. - **Compliance and Certifications:** Meets stringent industry standards, including UL 1449 4th Edition and CSA certification, ensuring compliance with global safety regulations. **Typical Applications:** The **Surge-Trap® XT Series** is engineered for a wide range of industrial and commercial applications where electrical surges pose a significant risk. Common use cases include: - **Service Entrances:** Protecting the main electrical service from external surges caused by lightning strikes or utility grid disturbances. - **Distribution Panels:** Safeguarding downstream equipment, such as transformers, switchgear, and panelboards, from transient voltage spikes. - **Branch Circuits:** Providing localized protection for sensitive equipment, including computers, PLCs, variable frequency drives (VFDs), and industrial automation systems. - **Renewable Energy Systems:** Shielding solar inverters, wind turbine controllers, and battery storage systems from voltage fluctuations. - **Healthcare Facilities:** Ensuring uninterrupted power supply to critical medical equipment, such as MRI machines, X-ray systems, and life-support devices. **Installation and Maintenance Considerations:** Professionals in the electrical industry rely on the **Surge-Trap® XT Series** for its ease of installation and minimal maintenance requirements. The unit can be installed in both **new and retrofit applications**, making it a cost-effective solution for upgrading existing systems. Key installation tips include: - **Location:** Mount the surge protector as close as possible to the equipment being protected to minimize voltage drop and maximize effectiveness. - **Wiring:** Follow manufacturer guidelines for proper wiring, ensuring correct polarity and secure connections to avoid loose terminations. - **Grounding:** Proper grounding is critical for optimal performance. Ensure the surge protector is connected to a solid grounding system to dissipate excess energy safely. - **Inspection:** Regularly inspect the unit for signs of wear, corrosion, or damage. While the XT Series is designed for durability, proactive maintenance extends its lifespan and ensures continued protection. **Why Mersen?** Mersen is a trusted name in electrical protection, with a legacy of innovation spanning over a century. The company’s commitment to research and development has led to breakthroughs in surge protection technology, including the development of TPMOV® technology. Mersen’s products are used in some of the most demanding industries worldwide, from aerospace and automotive to healthcare and renewable energy. When you choose the **Surge-Trap® XT Series**, you’re investing in a product backed by Mersen’s reputation for quality, safety, and performance. Whether you’re protecting a critical manufacturing process, a data center, or a renewable energy installation, the XT Series delivers the reliability and peace of mind that professionals demand. **Conclusion:** The **Mersen Surge-Trap® XT Series Type 1 Surge Protector (SKU: STXT12S1004X)** is more than just a surge protector—it’s a comprehensive solution for safeguarding electrical systems against the unpredictable nature of power surges. With its advanced TPMOV® technology, flexible installation options, and robust construction, the XT Series is the ideal choice for industrial and commercial applications where reliability and safety are paramount. Trust Mersen to deliver the protection your systems deserve.
  • Advanced TPMOV® technology for thermal protection and automatic disconnection
  • Flexible line or load side installation for service entrances, distribution panels, and branch circuits
  • 240V single-phase compatibility for HVAC, motors, pumps, and sensitive electronics
  • Robust construction for harsh industrial environments
  • UL 1449 4th Edition and CSA certified for global compliance

Specifications

Application
Service Entrance AC Distribution Power supplies Drive Protection Large Control Panels Telecommunications IT / Data centers
Brand Name
Mersen
Connection
Box
Mounting
Screw
Short Circuit Rating
200 kA
Short-Circuit Rating
200 kA
Special Features
UL 1449 Third Edition Listed (Sept 2009) Type 1 SPD – All UL required OCP & safety coordination included inside Can be installed line-side or load-side of main disconnect 20kA Nominal discharge current 200kA SCCR (most models) UL 96A Lightning Protection Master Label compliant (@20kA, In) NEMA 4X polycarbonate enclosure – UL 746C(f1) & UL 94-5VA TPMOV&reg, Technology Inside All MOV suppression elements monitored Filtering - AC sinewave tracking filter with EMI/RFI filtering up to -50dB from 10khz to 100mhz Phase-loss monitoring (toggles LED and dry contacts) Ten-year Warranty
Standard
UL 1449 Third Edition, cUL, UL 1283 R/C UL File: VZCA.E210793 RoHS Compliant IEC 61643 CE Burn-In tested prior to shipment UL 96A lighting protection master label
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)
7.55 IN x 5.997 IN x 3.92 IN
Package Dimensions (L x W x H)
19.177 cm x 15.2324 cm x 9.9568 cm
Package Weight (Imperial)
5.000 L
Package Weight (Metric)
2.268 kg
Ethernet SHDSL Extender

DDW-120

Ethernet SHDSL Extender
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
DIN Rail ? DIN 35

ARH 1656

DIN Rail ? DIN 35
24U 21.34W 31.5D CABINET BLK

REFK1904231BK1

24U 21.34W 31.5D CABINET BLK
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
DataCom Enclosure Pkg, Bulletin DPVD (PROLINE® Voice and Data Package - PROLINE Voice and Data Package), Size/Dims: 2000x700x800mm, Material: Steel, Finish: Lt Gray

PDCP2078

DataCom Enclosure Pkg, Bulletin DPVD (PROLINE® Voice and Data Package - PROLINE Voice and Data Package), Size/Dims: 2000x700x800mm, Material: Steel, Finish: Lt Gray
6U PERF PANEL

PPFS19010BK

6U PERF PANEL
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.
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
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.

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.