Mersen 550TPMOVS-HV - Mersen's patented TPMOV® (Thermally Protected Metal Oxide Varistor ) eliminates common destructive failure modes associated with standard MOVs. Comprised of a voltage clamping device and a disconnecting apparatus that monitors the status of the metal oxide disk inside the TPMOV, the device is securely disconnected in the event of an overvoltage by an arc shield. Upon failure, the TPMOV is also equipped with a visual pin indicator as well as a normally open microswitch providing remote indication, if applicable. 550 Volts Short Leads and HV Micro series.
Mersen

550TPMOVS-HV

Alternate Item Number: 550TPMOVS-HV

UPC: 782001403980

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Specification Sheet

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Overview

The Mersen 550TPMOVS-HV is a high-reliability surge protection component featuring patented TPMOV® (Thermally Protected Metal Oxide Varistor) technology. This advanced design fundamentally eliminates common destructive failure modes associated with standard MOVs, offering a fail-safe solution for critical electrical systems. Internally, each unit integrates a robust voltage clamping device with a sophisticated disconnecting apparatus that actively monitors the status of the metal oxide disk. In the event of an overvoltage, an internal arc shield securely disconnects the faulty disk from system power, preventing catastrophic failure. This specific model, the 550TPMOVS-HV, is part of the HV Micro series and is rated for 550 Volts with short leads. Upon failure, the TPMOV® is equipped with a visual pin indicator, providing immediate on-device status confirmation. Additionally, it includes a normally open microswitch for remote indication, allowing for proactive system monitoring and maintenance planning, crucial for industrial applications. The TPMOV technology ensures that upstream overcurrent protection, such as fuses, is not required, simplifying installation and reducing component count. Key Features and Benefits: * **Patented TPMOV® Technology:** Eliminates common MOV failure modes for enhanced safety and reliability. * **Fail-Safe Operation:** Internal disconnecting apparatus and arc shield ensure secure disconnection during overvoltage events. * **Visual and Remote Indication:** On-device visual pin indicator and a normally open microswitch for remote failure alerts. * **No Upstream Overcurrent Protection Required:** Simplifies system design and installation. * **HV Micro Series:** Designed for high voltage applications with short leads. * **Manufacturer:** Mersen * **SKU:** 550TPMOVS-HV * **UNSPSC Code:** 39121610 * **Country of Origin:** US
  • Patented TPMOV® technology eliminates common MOV failure modes.
  • Fail-safe operation with internal disconnecting apparatus and arc shield.
  • Visual pin indicator for on-device failure status.
  • Normally open microswitch for remote failure indication.
  • 550 Volts rating, HV Micro series with short leads.

Specifications

Application
For OEM design and build
Application
Surge protective devices and systems AC / DC distribution systems High voltage power supplies Telecommunications equipment Motor control systems Computer related products PLC applications Power transfer switches
Brand Name
Mersen
Connection
Solder
Frequency Rating
50/60 HZ
Material
PET (Polyethelene Terphthalate)
Mounting
PCB Mount
Operating Temperature, Maximum
185 F
Operating Temperature, Maximum
85 C
Operating Temperature, Minimum
-40 F
Operating Temperature, Minimum
-40 C
Series
TPMOV7
Short Circuit Rating
200 kA
Short-Circuit Rating
200 kA
Short-Circuit Rating
200.0000 kA
Size
2.35 x 1.69 x 0.63;59.69 x 42.926 x 16.002 in;mm
Special Features
Industry-leading TPMOV technology available in 50kA and 75kA surge capacities Consistent footprint with 25–40mm MOVs Built-in visual/remote indication optional No additional overcurrent protective device (fuses) required
Standard
ANSI/UL 1449 5th Edition, Type 1 Component Assembly SPD, File E210793 RoHS Compliant
Type
Thermally Protected MOV (TPMOV)
Type
TPMOV (Thermally Protected MOV)
Type Of Indicators
Microswitch
UL SPD Type
Type 1 Component Assembly
Voltage Rating
550 VAC
Voltage Rating
550 V
Package Dimensions (L x W x H)
2.35 IN x 1.69 IN x 0.63 IN
Package Dimensions (L x W x H)
5.969 cm x 4.2926 cm x 16.002 mm
Package Weight (Imperial)
0.120 L
Package Weight (Metric)
0.054 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.