Mersen STXT09S1004X - 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. 600 Volts 3P Delta system type .
Mersen

STXT09S1004X

Alternate Item Number: 782001429188

UPC: 782001429188

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Specification Sheet

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Overview

The Mersen Surge-Trap® Type 1 XT Series represents the pinnacle of advanced surge protection technology, engineered to safeguard critical industrial electrical infrastructure. At its core lies the revolutionary TPMOV® (Thermal Protected Metal Oxide Varistor) technology, setting a new industry standard for safety and reliability. This integrated thermal disconnect mechanism ensures that even under extreme surge conditions or internal component failure, the XT Series unit will safely disconnect from the power system, preventing catastrophic failures and potential fire hazards. This inherent safety feature makes the Surge-Trap® XT Series the most secure surge protection device available on the market today. Designed for versatility, the XT Series offers unparalleled installation flexibility. Whether installed on the line side or load side of the overcurrent protection device, this unit seamlessly integrates into a wide range of electrical system configurations. This adaptability makes it an ideal solution for protecting everything from the main service entrance of a facility to individual distribution panels and even sensitive branch circuits. Its robust design and advanced capabilities are particularly well-suited for demanding industrial environments where reliable power quality is paramount. This specific model, SKU STXT09S1004X, is engineered for 600 Volt, 3-Phase Delta system types. This configuration is common in many heavy industrial applications, including manufacturing plants, processing facilities, and large commercial buildings. By effectively clamping transient voltage surges originating from lightning strikes, utility switching, or internal equipment operation, the Surge-Trap® XT Series prevents damage to sensitive electronic equipment, reduces downtime, and extends the operational lifespan of valuable assets. The Mersen brand is synonymous with quality and innovation in electrical protection, and the Surge-Trap® XT Series exemplifies this commitment. Key features and benefits of the Mersen Surge-Trap® Type 1 XT Series include: * **TPMOV® Technology:** Provides superior thermal protection and safe disconnect capabilities, ensuring the highest level of safety. * **Type 1 SPD:** Designed for installation at the service entrance or upstream of the main overcurrent protection device, offering comprehensive protection. * **Installation Flexibility:** Can be installed on either the line side or load side, simplifying integration into existing or new electrical systems. * **600V 3P Delta System Compatibility:** Specifically designed for common industrial voltage and phase configurations. * **Robust Construction:** Built to withstand harsh industrial environments and deliver long-term performance. * **Reduced Downtime:** Protects critical equipment from damaging surges, minimizing costly interruptions. * **Extended Equipment Lifespan:** Prevents premature failure of sensitive electronics and machinery. When selecting surge protection for industrial applications, choosing a product with proven reliability and advanced safety features is crucial. The Mersen Surge-Trap® Type 1 XT Series, with its integrated TPMOV® technology and flexible installation options, offers a robust and dependable solution for safeguarding your electrical infrastructure against the unpredictable nature of voltage transients. Trust Mersen to provide the advanced protection your operations demand.
  • Advanced TPMOV® Technology for superior thermal protection and safe disconnect
  • Type 1 Surge Protective Device (SPD) for service entrance or panel protection
  • Flexible line or load side installation for easy integration
  • Designed for 600 Volt, 3-Phase Delta electrical systems
  • Mersen's trusted brand for industrial electrical protection

Specifications

Application
Service Entrance AC Distribution Power supplies Drive Protection Large Control Panels Telecommunications IT / Data centers
Brand Name
Mersen
Connection
Box
Mounting
Screw
Poles
3P
Series
Surge-Trap XT Series
Short Circuit Rating
200 kA
Short-Circuit Rating
200 kA
Short-Circuit Rating
200.0000 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
600 VAC
Voltage Rating
600 V
Package Dimensions (L x W x H)
10 IN x 10 IN x 5.5 IN
Package Dimensions (L x W x H)
25.4 cm x 25.4 cm x 13.97 cm
Package Weight (Imperial)
5.250 L
Package Weight (Metric)
2.381 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.