Mersen 25TPMOVSL320 Mersen 25TPMOVSL320 TPMOV surge suppressor, SKU 25TPMOVSL320, uses patented TPMOV tech…
Alternate Item Number: 25TPMOVSL320
UPC: 782001492083
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Multiplier: 500
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Overview
- Patented TPMOV technology for fail-safe surge protection
- 25kA (8/20μs) impulse rating with 200kA SCCR
- 320VAC Maximum Continuous Operating Voltage (MCOV)
- Visual pin indicator and NO micro-switch for remote failure alerts
- UL 1449 5th Edition Type 1 SPD compliant, RoHS compliant
Specifications
Application | For OEM design and build |
Connection Type | PCB-mount with short leads |
Current Rating | 25 kA (8/20μs) |
Current Rating | 25 KA |
Frequency Rating | 50/60 HZ |
Material | Thermoplastic |
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 | TPMOV |
Series | 25TPMOV |
Size | 1.19 x 0.54 x 1.28;30.226 x 13.716 x 32.512 in;mm |
Size | 25 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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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
What is the maximum continuous operating voltage?
The device supports a maximum continuous operating voltage (MCOV) of 320VAC.
What is the surge capacity of the 25TPMOVSL320?
The surge capacity is rated at 25kA (8/20μs) peak surge current.
What is the response time of the surge suppressor?
The response time is less than 1 nanosecond per phase.
What is the operating temperature range?
The device operates from -40°C to +85°C.
Is the 25TPMOVSL320 PCB-mount compatible?
Yes, the device is designed for PCB-mount installation with short leads.
What standards does the 25TPMOVSL320 comply with?
The device complies with ANSI/UL 1449 5th Edition Type 1 SPD and RoHS standards.
What is the nominal discharge current rating?
The nominal discharge current rating is 10kA.
Does the device include remote failure indication?
Yes, it features a normally open micro-switch for remote failure alerts.
What is the footprint size of the 25TPMOVSL320?
The device has a compact 25mm footprint matching standard MOV sizes.
Does this device require upstream overcurrent protection?
No, the device eliminates the need for upstream overcurrent protection.
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.













