Our IP power solutions - Select the appropriate category
Our Monitoring Systems - Select the appropriate category
Our Radio Time Systems - Select the appropriate category
Choose the right accessories for our solutions
Choose your IT industry
Choose your AV area
Choose your industry
Reducing energy consumption, minimize carbon footprint - the biggest challenges of Green AV technologies
No IT without safety measures
Increased safety through out-of-band
Everything you need to know about energy monitoring
This is why energy efficiency in IT is so important
What professional environmental monitoring is all about
The right capacity planning is crucial
Flexible control through remote access
Support with basic questions
Support & Downloads for our Power Distribution Units
Support & Downloads for our Monitoring Systems
Support & Downloads for our Time Systems
Find a distributor near you
Benefit from GUDE partner status
Report your project
Read our in-depth white papers
Get to know GUDE
Meet our satisfied customers
Reach your goal faster with our well-known technology partners
All news about GUDE
A surge protector protects electrical and electronic devices from excessive electrical voltages. Surges can have various causes.
There is a three-stage concept for protection against overvoltages.
A coarse protection (SPD type 1, Surge Protection Device) protects against high-energy disturbances. For example, it prevents lightning from entering the line to be protected. It is designed to limit the residual voltage to 1300 to 6000 V.
A medium protection (SPD type 2) is usually located in floor distributors. It is designed to limit the overvoltages to 600 to 2000 V.
Fine protection (SPD type 3) is the protection of sockets and connectors.
All terms in Expert Know-how
You can find many helpful tips, FAQs and technical information about our products in our Wiki. Here you will get help if you need special information about our products, e.g. how to query our network products via HTTPS commands or what to do if you forgot the device password.