Surge protection and lightning protection
Surge protection refers to the protection of systems and electrical devices against excessively high voltage peaks caused by switching operations and lightning strikes. An effective lightning protection strategy combines internal and external lightning protection. Protect the power supplies, data, and signals in your system. Use the reliable surge protection solutions available in our various product ranges as part of your internal lightning protection strategy.More information
- Protection for all common applications and signals with the complete product portfolio
- Versatile fields of application – designs and connection technologies for every application
- Space-saving and inexpensive installation, thanks to the slim design
- Know what’s happening in advance with cloud-based monitoring or predictive testing of pluggable protective devices
Surge protection type 1+2+3 combined lightning current and surge arrester
High performance in a narrow overall width
The non-pluggable type 1 lightning current arrester, with four HP (72 mm width) for 230 V AC installations and a maximum discharge current of 25 kA, meets high surge protection requirements in a compact design with basic functions. It uses new, carbon-based triggered spark gap technology.
- Half the overall width, twice the space
- Tested in accordance with IEC standard T1+T2+T3
- Available with remote signaling
- Can be used up to 3,000 m above mean sea level
- More flexibility in the control cabinet thanks to the slim design
- Robust high-performance spark gap technology for demanding applications, e.g., in telecommunications systems
- Integration of the SPD into the internal system monitoring via remote indication contact
Surge protection fields of application
Surge protection for the power supply
Our type 1+2, type 1+2 special, type 2, or type 3 surge protective devices provide effective protection for your electronic devices. From feed-in to the end device, we offer convenient, ready-to-install solutions for all applications.
Surge protection for MCR technology and signals
A large number of signals are controlled and monitored in measurement and control technology (MCR technology) applications. Our protective devices prevent malfunctions and damage caused by surge voltages and offer an ideal solution for any application.
Surge protection for information technology
Data interfaces are particularly sensitive to surge voltages, because they operate with low signal levels and high frequencies. Use our surge protection solutions for interference-free data transmission while maintaining the bandwidth in your IT systems.
Surge protection for transceiver systems
Transceiver systems are particularly at risk from surge voltages. Antenna cables that extend beyond the building and the antennas themselves are directly exposed to atmospheric discharges. Play it safe with our powerful, coaxial surge protective devices.
String combiner boxes for photovoltaic systems
String combiner boxes need to be used in order to provide optimum protection for photovoltaic systems against lightning strikes and surge voltages. Our ready-to-install string combiner boxes can be connected immediately, and are reliable system solutions that protect the inverter directly upstream of the DC and AC voltage inputs. Surge voltage couplings are discharged directly to the ground potential.
Test and monitoring devices
ImpulseCheck is the world’s first intelligent assistance system for surge protection in the field of mains protection, allowing you to monitor your systems in real time. The system permanently records the state of the relevant system. The state of health of the surge protective device is known at all times, so you can prevent a failure in good time.
To manually test pluggable surge protective devices in accordance with the requirements of IEC 62305, use CHECKMASTER 2 as a mobile test device. You can prevent machine and system failures by performing periodic precautionary checks.
Isolating spark gap
When high voltages occur for a short period (for example, due to a lightning strike), isolating spark gaps connect metallic exposed conductive parts which must not be permanently galvanically connected during operation. For example, protect sensitive insulating flanges in pipelines against sparkover and avoid failures, downtimes, or leaks.
Surge protection for e-mobility charging infrastructure
With our CHARX protect surge protective devices, you can protect charging stations and electric vehicles against damage due to surge voltages which can arise due to lightning strikes or switching operations in the grid. Charge without risk by ensuring that your charging infrastructure remains available at all times - at any time of the day or night, and in any weather.
Protective circuit principle and protection concept
You should plan a protection concept for lightning and surge protection so that all cables, devices, and systems are protected.
The protective circuit principle is easy to illustrate:
Draw an imaginary circle around the object you want to protect. Surge protective devices must be installed at all points where cables intersect this circle. This ensures that the area within the protective circuit is protected in such a way that conducted overvoltages are prevented.
When planning the protection concept, consider the following areas of application:
- Power supply
- Measurement and control technology
- Information technology
- Transmitters and receivers
An effective protective circuit helps ensure seamless surge protection.
When it comes to surge protection, which standards must be observed?
National and international standards provide a guide to establishing a lightning and surge protection concept as well as the design of the individual protective devices. They differ depending on region and field of application. The overarching standard is lightning protection standard IEC 62305. It describes protective measures against lightning events and an extensive risk analysis with regard to the necessity, scope, and cost-effectiveness of a protection concept.