Mersen 25TPMOVSL150 - The Mersen 25TPMOVSL150 is a Thermally Protected Metal Oxide Varistor (TPMOV) surge suppression component designed for robust protection. Utilizing Mersen's patented TPMOV technology, it addresses common failure modes found in standard MOVs, offering a fail-safe operation. Each unit integrates a voltage clamping device and a monitoring apparatus for the metal oxide disc. Upon failure, it provides a visual pin indicator and an optional normally open micro-switch for remote status indication. This model is rated for a 25kA (8/20μs) peak surge current and a maximum continuous operating voltage (MCOV) of 150VAC. It features a 200kA SCCR and a response time of less than 1 nanosecond. The 25TPMOV series is available in a standard 25mm MOV footprint and is UL 1449 4th Edition, Type 1 SPD compliant. Operating temperature range is -40°C to +85°C. SKU: 25TPMOVSL150.
Mersen

25TPMOVSL150

Alternate Item Number: 25TPMOVSL150

UPC: 782001492069

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Multiplier: 500

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Overview

The Mersen 25TPMOVSL150 is a Thermally Protected Metal Oxide Varistor (TPMOV) surge suppression component, SKU 25TPMOVSL150, designed for robust and fail-safe electrical protection. Leveraging Mersen's patented TPMOV technology, this device actively addresses common failure modes found in standard MOVs. Each unit integrates a voltage clamping device with a monitoring apparatus for the metal oxide disc, ensuring reliable operation. Upon failure, the 25TPMOVSL150 provides a clear visual pin indicator and an optional normally open micro-switch for remote status indication, enhancing system monitoring capabilities. This model is engineered for demanding applications, rated for a significant 25kA (8/20μs) peak surge current and a maximum continuous operating voltage (MCOV) of 150VAC. It boasts a high Short-Circuit Current Rating (SCCR) of 200kA and an exceptionally fast response time of less than 1 nanosecond, providing immediate protection against transient voltage events. The 25TPMOV series, including the 25TPMOVSL150, is designed with a standard 25mm MOV footprint, facilitating easy integration into existing designs. It is UL 1449 4th Edition, Type 1 SPD compliant, making it suitable for a wide range of Surge Protective Device (SPD) applications, particularly for OEM design and build. Key features include industry-leading TPMOV technology, a standard 25mm MOV footprint, and the elimination of the need for upstream overcurrent protection. The optional built-in end-of-life indication via a micro-switch adds a layer of proactive maintenance. The operating temperature range is -40°C to +85°C, ensuring performance in diverse environmental conditions. This component is RoHS Compliant and manufactured in the US.
  • Mersen's patented TPMOV technology for fail-safe operation
  • 25kA (8/20μs) peak surge current capacity
  • 150VAC Maximum Continuous Operating Voltage (MCOV)
  • 200kA Short-Circuit Current Rating (SCCR)
  • Visual pin indicator and optional remote status micro-switch

Specifications

Application
For OEM design and build
Connection Type
PCB-mount with short leads
Frequency Rating
50/60 HZ
Material
PET (Polyethelene Terphthalate)
Mounting
PCB Mount
Mounting Type
PCB-mount
Operating Temperature, Maximum
185 F
Operating Temperature, Maximum
85 C
Operating Temperature, Minimum
-40 F
Operating Temperature, Minimum
-40 C
Series
25TPMOV
Size
1.19 x 0.54 x 1.28;30.226 x 13.716 x 32.512 in;mm
Size
25mm MOV footprint
Special Features
Industry-leading TPMOV® Technology Now available in a standard 25mm MOV footprint Upstream overcurrent protection not required Built-in end-of-life indication Type 1 CA SPD allows for use in all types of SPD applications
Standard
ANSI/UL 1449 5th Edition, Type 1 Component Assembly SPD, File E210793 RoHS Compliant
Type
TPMOV (Thermally Protected MOV)
Type of Indicators
Microswitch
UL SPD Type
Type 1 Component Assembly
Voltage Rating
150 Vac
Package Dimensions (L x W x H)
1.19 in x 0.54 in x 1.28 in
Package Dimensions (L x W x H)
30.226 mm x 13.716 mm x 32.512 mm
Package Weight (Imperial)
0.062 lb
Package Weight (Metric)
0.028 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.