Surge arrester varistor for photovoltaic installations T2 MOV 3P PV In=15kA Up3 7 kV Ue=1kVDC SPV340

Photovoltaic installation protection – reliable surge arrester

This three-phase varistor surge arrester, designed for photovoltaic installations, is a key element in protecting against the effects of lightning strikes and voltage surges in the grid. Designed to effectively protect both PV installation components and devices connected to it, it ensures the safety and continuity of the system. Protection class T2 means that it is an ideal device for use after a type T1 arrester, creating comprehensive surge protection.

Construction and application

The SPV340 surge arrester is mounted on a standard DIN TH-35 mm mounting rail, which facilitates its installation in electrical distribution boards. Its compact design (3 modules) allows for space saving. Designed to operate in DC systems with a rated voltage of 1000 V, it works perfectly in modern photovoltaic installations. Optical signaling informs about the operation of the arrester, which facilitates diagnostics and a quick response in the event of a voltage surge. The rated discharge current of 15 kA (8/20 µs) guarantees effective protection against sudden voltage jumps. The device is adapted to cooperate with wires with a cross-section of up to 35 mm² (solid wires) and 25 mm² (flexible wires).

Key features and benefits

• Versatility: Adapted to work in various network systems – DC, TN-C-S and others.
• High efficiency: Voltage protection level of 3.7 kV provides effective protection against damage to sensitive components of the photovoltaic installation.
• Durable construction: Made of high-quality materials, resistant to environmental conditions and ensuring long-term reliability (IP20).
• Safety: Integrated optical signaling allows for quick identification of the device status and the need for replacement after operation.
• Compliance with standards: Meets the requirements of IEC 61643 standard, guaranteeing safety and compliance with applicable regulations.
• Short-circuit protection: Lack of integrated short-circuit protection requires the use of additional protection in the installation.
• Durability: Short-circuit strength at the level of 2 kA ensures resistance to short-circuit currents occurring in the installation.
• Universal mounting: Mounting on a DIN TH-35 mm rail facilitates integration with existing distribution systems.

The rated discharge current reaches 15 kA (8/20 µs), the voltage protection level is 3.7 kV, and the rated DC voltage is 1000 V. The device occupies 3 modules and has a protection degree of IP20.

The SPV340 surge arrester is an investment in the safety and long-term efficiency of your photovoltaic installation – for both professional installers and end users!