Mersen 25TPMOVSL320 - Mersen 25TPMOVSL320 TPMOV surge suppressor, SKU 25TPMOVSL320, uses patented TPMOV tech with fail-safe disconnect. Features visual pin indicator and NO micro-switch for remote failure alert. Specs: 25kA (8/20μs) impulse, 200kA SCCR, 320VAC MCOV, 1000V VPR. UL 94 V-0 rated, -40°C to +85°C operation. PCB-mount with short leads, ANSI/UL 1449 4th Ed. Type 1 SPD compliant.
Mersen

25TPMOVSL320

Alternate Item Number: 25TPMOVSL320

UPC: 782001492083

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Minimum Qty: 500

Multiplier: 500

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Overview

The Mersen 25TPMOVSL320 Thermally Protected Metal Oxide Varistor (TPMOV) surge suppressor delivers advanced surge protection for OEM applications requiring reliable, fail-safe operation. This UL 1449 4th Edition Type 1 SPD component features patented TPMOV technology, combining a voltage clamping device with a disconnecting apparatus that monitors the metal oxide disk for fail-safe operation. Upon failure, the device includes a visual pin indicator and a normally open micro-switch for remote failure alerts, ensuring system safety and uptime. Key specifications include a 25kA (8/20μs) impulse rating, 200kA Short-Circuit Current Rating (SCCR), and a 320VAC Maximum Continuous Operating Voltage (MCOV). The 1000V Voltage Protection Rating (VPR) meets ANSI/UL 1449 standards, while the UL 94 V-0 rated thermoplastic enclosure ensures flame resistance. Operating from -40°C to +85°C, this PCB-mount device with short leads eliminates the need for upstream overcurrent protection, reducing system complexity. Designed for OEM integration, the 25TPMOVSL320 is ideal for applications requiring robust surge protection in industrial, commercial, and utility environments. Its compact 25mm footprint matches standard MOV sizes, enabling easy retrofits and new designs. The device’s 10kA nominal discharge current rating and <25ns response time provide immediate protection against transient voltage spikes. Compliance with RoHS standards ensures environmental sustainability. Choose the Mersen 25TPMOVSL320 for dependable surge suppression in Type 1 SPD applications, where reliability and safety are critical. Backed by Mersen’s global expertise in electrical power solutions, this surge suppressor delivers measurable performance and compliance for demanding electrical systems.
  • Patented TPMOV technology with fail-safe disconnect for enhanced reliability
  • 25kA (8/20μs) impulse rating and 200kA SCCR for robust surge protection
  • 320VAC MCOV and 1000V VPR compliance with ANSI/UL 1449 4th Edition Type 1 SPD
  • Visual pin indicator and NO micro-switch for remote failure alerts
  • UL 94 V-0 rated thermoplastic enclosure, -40°C to +85°C operation

Specifications

Application
For OEM design and build
Connection Type
PCB-mount with short leads
Current Rating
25 KA
Frequency Rating
50/60 HZ
Material
Metal Oxide Varistor
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
320 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.