Lightning strikes and switching operations in the power grid can create surge voltages capable of disabling sensitive electronic systems. Routers, heat pumps, controllers, servers, photovoltaic inverters, and even complete production facilities may be affected. Although damaged hardware can be replaced, production downtime and data loss often create greater disruption and expense. The SPP surge protection system from Phoenix Contact provides a coordinated approach to protecting critical electrical and electronic infrastructure from lightning strikes and surge voltages. As modern buildings, industrial facilities, and photovoltaic systems become increasingly dependent on sensitive electronics, a single surge event can result in equipment damage, costly downtime, and data loss. The SPP family is designed to help ensure high system availability through end-to-end protection.
Two Coordinated Product Lines
The SPP family consists of two complementary product lines. FLT-SPP provides type 1+2+3 combined lightning current and surge protection, while VAL-SPP covers type 2 AC applications and type 1 or type 2 protection for photovoltaic systems. Their consistent design and safety concept simplify planning and help coordinate protection from the main distribution system through to sub-distribution.
FLT-SPP handles high-energy events
FLT-SPP devices protect the incoming power supply. They are designed for locations with high lightning current exposure. Typical applications include industrial facilities, outdoor installations, and telecommunications infrastructure. The devices meet lightning protection levels I and II. They also offer additional power reserves for demanding environments.
A triggered multi-carbon spark gap provides multi-pulse capability. This technology safely handles rapid successive discharge events. Protection remains reliable even during complex lightning conditions.
FLT-SPP combines high performance with a compact design. Each pole is only 17.5 mm wide. This saves valuable cabinet space. The plug-in design also simplifies commissioning and maintenance.
VAL-SPP protects downstream systems and PV installations
VAL-SPP provides coordinated protection at the subdistribution level. Multiple circuit and rated-voltage versions support applications ranging from residential and commercial buildings to industrial control cabinets. Dedicated photovoltaic models protect panels, inverters, and energy storage systems, with type 1 and type 2 devices available for system voltages from 600 V DC to 1,500 V DC.
Plug-in modules, a robust locking mechanism, and visible status indicators support straightforward installation, maintenance, and replacement. These features help reduce response and service effort when intervention is required.
One design for safer installation
Both product lines share the same operating philosophy. Miswiring and touch protection support intuitive installation, while the specified tightening torque of 3 newton-meters helps establish a stable conductor connection. The standardized design also means installers can use consistent procedures across protection levels.
Clear status signals, plug-in modules, a double-insulated potential-free remote indication contact, and safe fault disconnection further support system availability. Compliance with relevant surge protection standards also simplifies planning and documentation against national and international installation specifications.
Together, FLT-SPP and VAL-SPP create an integrated SPP surge protection system for buildings, industrial automation, power infrastructure, and renewable energy systems. By coordinating high-energy protection at the incoming supply with versatile downstream protection, the SPP family supports safe installation and reliable operation across the complete electrical system.
Protect critical infrastructure, maximize system availability, and simplify surge protection planning with the Phoenix Contact SPP family. Whether you’re designing a commercial building, industrial facility, energy storage system, or photovoltaic installation, SPP provides a coordinated protection concept from the main distribution board to the final application.
Discover the complete SPP portfolio and find the right protection solution for your application: www.phoenixcontact.com/spp
