Ensure reliable power management with Power Temp Systems’ Load Interrupters. Our medium voltage load interrupter switches are available in both permanent and portable configurations, rated from 5kV to 34.5kV and 200A to 1200A, with BIL ratings up to 150kV. Built to ANSI/IEEE C37.20.3, C37.20.4, and NEMA SG-5 standards, our load break switches deliver dependable load switching and isolation for various applications and can be custom designed to fit areas with limited space. Available fused or non-fused, with stainless steel enclosure options for demanding environments.

Mechanically interlocked fuse access doors and switch viewing windows prevent unsafe switching sequences and allow operators to confirm open/closed status without de-energizing, keeping crews safe and operations code-compliant across voltage classes from 5kV to 34.5kV.

Available in up to 6-bay configurations with 4-point fork pockets for fast positioning, our portable load interrupters are designed for efficient field deployment, minimized downtime, and maximized productivity.

Constructed on a structural steel welded base with plated terminals and an internal ground bus, our load interrupter switches are rated NEMA 1 and 3R and available in stainless steel for corrosive or outdoor environments.


Our experts are here to help you choose the perfect Medium Voltage solution for your needs.
Explore how we can customize a solution just for you.
Cable Assemblies Engineered for Reliability in Extreme Conditions Create Reliable Connections wit...
Medium Voltage Transformers Ensuring Uninterrupted Power and Reducing Downtime Power Temp’s Mediu...
Medium Voltage Electrical Tap Boxes Flexible Power Distribution Solutions Flexible Power Distribu...
Vacuum Circuit Breakers Sound Power Interruption Solutions Ability to interrupt electrical faults...
Discover the convenience of reliable power management with Power Temp Systems’ Load Interrupter Switches. Our durable and efficient load interrupters provide dependable solutions for managing power interruptions. With standard and customized options available, Power Temp Systems’ engineers are ready to help you select the right load interrupter for your application, whether you need a permanent installation or a portable load break switch for the field. Contact us to discuss your project.


Gunthrett Power cannot speak highly enough about Power Temp Systems, with whom we have had the privilege of partnering for the last 4 years. Throughout that time, Power Temp has consistently demonstrated exceptional qualities that make them stand out in the industry.


PowerTemp Systems delivers highly customizable and innovative solutions that help our customers solve rapidly evolving emergency power needs. The PTS team is incredibly quick to respond, ensuring seamless support and reliability every step of the way. Exceptional service!


First and foremost, their problem-solving abilities are remarkable. Time and again, they have shown an impressive aptitude for tackling complex challenges and finding innovative, effective solutions. Whether it’s addressing unforeseen production issues or resolving technical hurdles, their team approaches each problem with a clear, methodical mindset, ensuring that no issue is left unresolved.


As a brand-new rep of PTS, I was very impressed with the training and the company culture you all seem to have.


The teamwork displayed by Power Temp Systems is truly outstanding. Every member of the team contributes their expertise and works with others to deliver outstanding product. This cohesiveness is integral to their ability to put out fires and ensure that tight deadlines or unexpected disruptions do not derail their progress.


What I like most about the Power Temp team is their responsiveness and communication level. From the initial quote request to submittal review and placing an order, the process is streamlined, well executed, and convenient. I can’t think of a time where if there were any questions, I could not get in touch with someone to discuss the problem. I appreciate that their representatives take the time to call with questions. In my opinion, a call is better received than an email…
Their pricing is about in line, perhaps a touch higher than others, but it is well worth it for the ease of doing business. The sales team is also willing to negotiate pricing to “win the job” and maintain a strong partnership. I also really like that their specialists can customize any product to provide a solution. Power Temp has become our preferred partner, especially for customized solutions. We look forward to growing our partnership together.


In terms of professionalism, Power Temp excels. They maintain a high standard of conduct, always acting with integrity and respect in every interaction. Their communication is timely, transparent, and effective.


I have appreciated the quick response to my requests for quotes from the Power Temp team and their willingness to supply engineered Docking Station solutions.


Their technical expertise is unparalleled, and their creativity sets them apart from other manufacturers. Not only do they apply established best practices, but they also go above and beyond by thinking outside the box and bringing fresh, creative solutions to the table. This blend of technical know-how and innovation has been invaluable in optimizing production and delivering exceptional results.


I would like to extend my sincere thanks for the excellent engineering solutions Power Temp provides and for their continued availability to support us throughout the process.
Their expertise and responsiveness have been invaluable in ensuring that our projects progress smoothly. The solutions they deliver are not only effective but also innovative, addressing both the technical and practical aspects of job requirements. Their willingness to be available whenever needed has made a significant difference, allowing us to move forward confidently and without delay.
We truly appreciate their dedication, professionalism, and the exceptional service they provide. We look forward to working together on future projects and continuing this strong partnership.
Once again, thank you to Power Temp for your hard work and ongoing support.


Power Temp Systems is a reliable, skilled, and an indispensable part of our operations. Anyone seeking a top-tier power distribution partner should look no further.
Check out our News & Resources for more Educational Content, Product Information, and more.