Safety & Reliability for Electrical Power
Knowledge center


 Solar Power

Increase system longevity with a full range of electrical protection solutions

HelioProtectionMersen delivers a dedicated range of photovoltaic solutions - and safer, more reliable solar installations - through its innovative HelioProtection® program. Products marked with the HelioProtection brand name have been tested and certified to the latest industry standards for use in photovoltaic applications and guarantee the level of performance required by the PV industry. The HelioProtection Program encompasses fuses and fuseholders, surge protection devices, disconnect switches, cooling devices, bus bars, and wire management solutions. From the combiner box and inverter to the panel board & utility distribution network, Mersen has you covered.

Fuses Versus Circuit Breakers for Low Voltage Applications

Understanding the differences between fuses and circuit breakers rated 600V and less will help you conclude which is better for your application.

This tech topic provides definitions, explains interrupting ratings, SCCR, coordination as well as arc flash mitigation and more to clearly provide the information you need to make the correct determination for your application.

Download Fuses Versus Circuit Breakers for Low Voltage Applications paper now.


 Arc Flash Info Center

A complete website dedicated to Arc Flash Hazard Information.

For years, Mersen has been heavily involved with arc flash testing and research, and we have a wealth of experience to share - what arc flash hazards are, how to protect workers from them, and how various regulations affect plant procedures.


arcflash Info center

Surge Protection

Damage from electrical surges is one of the leading causes of electrical equipment failure. Most surge spikes originate from within the facility itself. Any facility with motors stopping and starting, light load panels being turned on and off frequently and other potential power disturbances is at risk for damage caused by a surge spike.

arcflash Info center

The following articles will provide insight into how to select and specify surge protection.

> What Is the Surge-Trap® SPD?

> Important Changes to UL 1449 Safety Standards for Surge Suppression

> Navigating the UL Safety Requirements for Surge Protection

> Buyer beware: SPD and UL Markings?

> Is There a One Size Fits All SPD?

> White Paper; Standards & Codes Note 3: Understanding SPD Codes & Standards, and TPMOV Technology

> Surge Protection Note 1: Introduction to Specifying Surge Protection - TT-SPN1

> SPD: Is Your Surge Protection Device Specification Up to Date?

> SPD: Understanding Ratings for Surge Protective Devices

Safety & Reliability of Electrical Power

Mersen integrates its product expertise into customers applications to make them safe, reliable and profitable. We provide expertise in:

  • Fuses, Fuse gear, and Fuse Systems
  • Surge Protection
  • Low Voltage Disconnect Switches
  • High Power Switches and Contactors
  • Cooling of Power Electronics
  • Bus Bars
  • Power Transfer for Rail Vehicles
  • Electronic Systems for Energy Management
  • Wire Management

Newburyport, MA
978.462.6662 |