High Power Engineered Products

Mersen designs and manufactures Electrical Protection and Control Systems consisting of switches, contactors, fuse and control components in a customized industry certified enclosure for Low Voltage to Medium Voltage High Power (High Current) Protection and Control Systems for AC/DC applications. 

Our standard High Power Switches are rigorously engineered to meet your technical specifications. Mersen’s High Power Switches encompass different ranges of proven technologies (Flohe-Fouilleret, Soule, Berg, Hundt & Weber, and Lenoir Elec) that gives us worldwide recognized expertise in Switching and Disconnecting. This expertise includes a wide range of DC and AC switches and disconnectors designed to handle high current and medium voltage applications. Our offerings include rectifier output switches, disconnect switches in both AC and DC, transfer switches for AC and DC, cell switches and medium voltages AC switches, and AC earthing switches. 

• Design & build customer technical specifications with reference to industry standards
• Offer solutions for customers having issues (safety, protection, performance, etc.) in their electrical system without any reference to a specific technical documentation/standard
• Training and commissioning of the equipment/sub-systems

• Protect people, equipment and processes
• Minimize costly downtime & repairs
• Reduce electrical risk e.g. arc flash hazard
• Remote control of the power systems
• Offer reduced dependance on external suppliers by utilizing Mersen broad component portfolio

• Current Ratings: up to 200kA
• Voltage Ratings AC: 120VAC to 38 kVAC
• Voltage Ratings DC: up to 2000 VDC
• Various Installation Mounting Options (wall, floor, pole, ceiling, busbar)
• Enclosed: TYPE (NEMA) 1, 12, 3R, 4, 4X metallic and non-metallic options
• Method of Operations: Manual, motor operated, pneumatic, remote (SCADA, PLC)

Does not cover:

• Medium Voltage Onload systems
• High Voltage systems
• Explosion proof equipment 

Innovative High Power Switch systems and assemblies are custom made. When you need more than just a switch, Mersen’s world-class engineering team is ready to provide custom engineering and fabrication to build the High Power Switch system or assembly you need, exactly the way you need it. Mersen’s team of design engineers are bold problem-solvers who enjoy meeting your High Power Switch challenges head on with innovative engineering and creative solutions. Our engineers incorporate design and construction features that ensure each switch performs reliably, whether it’s a rectifier output switch operated once a year or a change-over switch system in an enclosed panel actuated dozens of times a day.  

If you have your product or equipment needs a design change, or is being used for different applications, our technical team will help determine if the switching and protection system needs to be changed as well. We offer technical support through our product lifecycle and yours.   

Mersen has built switching and protection systems for hundreds of users, and supports the product with maintenance, timely shipping and replacement parts so that your critical loads stay online.

Infrastructure Spending by Government Entities

The Inflation Reduction Act of 2022 investing into domestic energy production while promoting clean energy (reduce carbon emissions by 40% by 2030) 

• Electrical distribution, energy storage including Hydrogen, isolation & grounding, control circuitry
• Building retrofits for electrification and efficiency
• Domestic green manufacturing

Upgrade and expansion of Transit Systems

New, refurbished, and expanded power generation plants

Obsolescence / Replacement (Retrofitting)

• Upgrade and/or retrofit high power equipment and systems in transit, power generation, chemical, mining facilities  

Code or Regulatory Changes

• Lack of investment in new transmission or generation may cause expansion of existing facilities in power transmission or generation
• Enhanced Safety Regulations (ASME/ANSI, NFP, NEC)
• Government Incentives in increase in use of Electric Vehicles

General Economic Growth Drivers

• Population growth, increased use of electricity and consumer goods