Mersen ST230TNM - Surge-Trap® Surge Protective Device is a no-fuse surge suppressor. The Surge-Trap is a UL 1449 Third Edition compliant modular style surge protective device that is DIN-rail mountable featuring a fail-safe self-protected design, visual indicator and a small foot print. A remote indicator option provides status to critical control circuit. The Surge-Trap provides advanced overvoltage protection utilizing Mersen's patented TPMOV® technology without additional protection devices. 230 Volts TN system type with microswitch .
Mersen

ST230TNM

Alternate Item Number: 782001410438

UPC: 782001410438

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Overview

The Mersen Surge-Trap® ST230TNM represents a pinnacle in industrial surge protection technology, engineered to safeguard critical electrical systems from transient overvoltages. As a no-fuse surge suppressor, this modular device offers a streamlined and highly effective solution for maintaining operational integrity in demanding environments. Its design adheres to the stringent UL 1449 Third Edition standard, ensuring a high level of safety and performance that industrial professionals rely upon. At the core of the ST230TNM's advanced capabilities is Mersen's patented TPMOV® (Thermal Protected Metal Oxide Varistor) technology. This proprietary innovation provides superior overvoltage protection without the need for external fuses or additional protective devices, simplifying installation and reducing potential points of failure. The device is specifically configured for 230 Volt TN system types, a common configuration in many industrial and commercial power distribution networks. The integrated microswitch offers an additional layer of control and monitoring, enhancing its utility in complex electrical setups. Installation is made exceptionally convenient due to the ST230TNM's DIN-rail mountable design. This modular approach allows for quick and secure integration into standard electrical enclosures, making it an ideal choice for both new installations and retrofits. The compact footprint of the Surge-Trap is a significant advantage in space-constrained control panels and cabinets, where every inch of space is valuable. Furthermore, its fail-safe, self-protected design ensures that even in the event of a severe surge or internal fault, the device will safely disconnect, preventing further damage to connected equipment and maintaining system safety. Visibility of the device's operational status is facilitated by a clear visual indicator, allowing on-site personnel to quickly assess its condition. For applications where remote monitoring is essential, such as in large facilities or critical infrastructure, an optional remote indicator provides real-time status updates to control rooms or supervisory systems. This feature is invaluable for proactive maintenance and rapid response to potential issues. Key features and benefits of the Mersen Surge-Trap ST230TNM include: * **Advanced Overvoltage Protection:** Utilizes Mersen's patented TPMOV® technology for robust surge suppression. * **No-Fuse Design:** Simplifies installation and reduces maintenance requirements. * **UL 1449 Third Edition Compliance:** Meets rigorous industry safety and performance standards. * **DIN-rail Mountable:** Facilitates quick and secure installation in standard electrical enclosures. * **Fail-Safe Self-Protected Design:** Ensures safe operation and disconnection under fault conditions. * **Visual Status Indicator:** Provides immediate on-site operational feedback. * **Optional Remote Indicator:** Enables remote monitoring for critical control circuits. * **Compact Footprint:** Ideal for space-constrained applications. * **230V TN System Compatibility:** Designed for common industrial power configurations. * **Integrated Microswitch:** Offers enhanced control and monitoring capabilities. The Surge-Trap ST230TNM is an indispensable component for industries such as manufacturing, automation, data centers, and building management systems, where the protection of sensitive electronic equipment from power disturbances is paramount. Mersen's long-standing reputation for quality and innovation in electrical protection makes the ST230TNM a trusted choice for safeguarding valuable assets and ensuring continuous operation.
  • Mersen Surge-Trap® ST230TNM: 230V TN system type surge protective device.
  • UL 1449 Third Edition compliant for reliable overvoltage protection.
  • Features Mersen's patented TPMOV® technology for advanced surge suppression.
  • No-fuse, fail-safe self-protected design with visual indicator.
  • Compact, DIN-rail mountable modular style with optional remote indicator and microswitch.

Specifications

Application
AC/DC distribution Power supplies Industrial automation Telecommunications Motor controls and starter systems Programmable logic controller (PLC) applications Power transfer equipment HVAC applications AC drives UPS systems Security systems IT / Data centers Medical equipment
Brand Name
Mersen
Connection
Box
Mounting
DIN-rail
Mounting Type
DIN-Rail
Series
Surge-Trap
Short Circuit Rating
200 kA
Short-Circuit Rating
200 kA
Special Features
Easy installation or retrofit Din-rail mountable Fail-safe /self-protected design Remote indicator (optional) with 3 pin NO/NC contact IP20 finger-safe design Visual indicator Small foot print No additional overcurrent protection devices needed
Standard
UL 1449 Third Edition, File No E210793 Type 1 Component Assembly IEC 61643-1 ANSI/IEEE C62.41 CE RoHS compliant
Sub Brand
Surge-Trap®
Type
Surge-Trap® SPD
Type Of Indicators
Microswitch
Voltage Rating
230 VAC
Package Dimensions (L x W x H)
3.58 IN x 0.7 IN x 2.7 IN
Package Dimensions (L x W x H)
9.0932 cm x 17.78 mm x 6.858 cm
Package Weight (Imperial)
0.250 L
Package Weight (Metric)
0.113 kg
Power supply for DIN-rail

PS-60

Power supply for DIN-rail
Super-Safeway® Multiple Outlet Box, Extended Depth, 2-Sided, F2 (1/2") Cord Grip Body, with Flip Lids for (2) Duplex Not Included

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24U 21.34W 31.5D CABINET BLK

REFK1904231BK1

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6U PERF PANEL

PPFS19010BK

6U PERF PANEL
Fiber cable ODC to SC duplex - 670mm

Fiber cable ODC SC Duplex 670mm

Fiber cable ODC to SC duplex - 670mm
DIN Rail ? DIN 35

ARH 1656

DIN Rail ? DIN 35
Cable Manager, fits 19-inch open rack, Black, Steel

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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.