The plug-in surge arresters SPPVT2 and SPPVT12 are developed especially for photovoltaic applications. They protect the installations against transient overvoltages that can be induced by direct or indirect lightning strikes.
SPPVT12: Homes with rooftop solar PV installations represent an additional vulnerability that requires surge protection. Usually this requires Type 1/2 combinations, for DC protection - based on whether the building has also a requirement for an external lightning protection system. SPPVT12 is developed especially for photovoltaic applications and protects the installations against transient overvoltages induced by direct lightning strikes.
SPPVT2: Type 2 PV surge protection is required, when there is no risk for direct lightning strikes but indirect surges can occur. SPPVT2 protects the inverter and installations against transient overvoltage due to switching and indirect lightning strikes.
These surge arresters are suitable for a wide range of surge protection in a large number of systems.
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The SPPVR family of surge protection devices (SPDs) is our answer to the growing need for safe and reliable photovoltaic (PV) installations in residential and commercial buildings.
Powerful protection is the first step to ensuring a long lifetime for your equipment and inverters: these SPDs ensure that your system will not be damaged by any overvoltage event on the direct current (DC) side of your PV application.
The SPPVR products can be deployed in residential settings, for example in small combiner boxes or commercial applications such as array protection boxes in PV fields. SPPVR offers a future-proof portfolio for all possible use cases.
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The SPBT12 device provides protection against transient
overvoltage caused by direct lighting strokes for lighting
protection levels III and IV acc. to IEC 62305.
Usually when an external lightning protection system is
installed, an internal lightning protection system is also
required for which the type 1/2 combination offers the best
solution.
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DG11 – With Additional Magnetic Release
The Schurter DG11 power entry module, which has been optimized and proven over many years, is now available in a version with an additional magnetic release to protect against very high overcurrent (short circuit).
Circuit breakers are usually designed according to the thermal principle with a bimetal. If a defined temperature is exceeded due to the overcurrent, the circuit is interrupted. Once the bimetal has cooled down, the device is ready for use again. However, this process is very slow. For this reason, thermal circuit breakers are usually combined with a fuse.
New with Additional Magnetic Module
Schurter is upgrading its TA35 2-pole miniature circuit-breakers with an additional, optional magnetic module. From now on, no additional fuse is required for the thermal-magnetic versions. Depending on the application, the magnetic modules are available with both slow and fast characteristics.
V-Lock Cord Retention
The new versions of the DG11 connectors are equipped with the proven V-Lock cord retention protection as standard.
Splash- and Dustproof: IP67
The DG11 power entry module is fitted with special sealing elements (gaskets) to achieve the very high degree of protection IP67.
Application Areas
Wherever dirt, dust particles or water occurs, and the highest safety standards are required, these new Schurter power entry modules are the perfect choice. Typical areas of application are harsh industrial environments or demanding medical applications where cleaning and disinfection as well as maximum protection against overcurrent (short circuit) are required.
Applications
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Finder’s 7P Series consists of Type 1+2, Type 1, Type 2, and Type 3 surge arresters.
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These devices include the following features (according to Type):
Type 1+2 are for the LPZ 0-1 boundary (where the supply enters the installation), Type 2 for the LPZ 1-2 boundary (main distribution panels within the installation) and Type 3 for the LPZ 2-3 boundary (local protection for individual sockets/items or cables).
Applications:
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© E. Preston (Electrical) Ltd 2026.
UK distributor of electrical and electronic components.
