Surge Arrester for Photovoltaic Installations Type 2 BY1-C/3 FW10 – pro tec 3224030

The Surge Arrester for Photovoltaic Installations Type 2 BY1-C/3 FW10 – pro tec 3224030 is a DC surge protection device designed to be connected in-line with photovoltaic (PV) arrays to reduce the impact of transient overvoltages. It diverts surge currents away from sensitive components such as inverters, modules and DC wiring, helping to maintain system reliability and reduce the risk of damage from lightning-induced or switching overvoltage events. The device is intended for rooftop and ground-mounted PV systems and for use in PV DC circuits where type 2 surge protection is required.

Advantages

The surge arrester provides targeted protection for photovoltaic circuits by limiting transient overvoltages and conducting surge currents to a safe path, decreasing stress on inverters and PV modules. Its compact inline design simplifies integration in DC combiner boxes or near the array string, supporting orderly system layout and easier maintenance. The device is manufactured to industry-relevant safety practices for PV applications and is suitable for installations where reliable Type 2 overvoltage protection is needed.

Suitable for

• Rooftop photovoltaic systems
• Ground-mounted PV arrays
• DC combiner boxes and string-level protection
• Protection of inverters and PV modules from transient overvoltages

Key specifications

• Application: DC surge protection for photovoltaic installations
• Protection class: Type 2 (designed for transient overvoltages)
• Connection: inline installation with PV array wiring suitable for string-level placement
• Function: diverts surge currents and limits peak voltage appearing on DC conductors
• Environment: suitable for rooftop and ground-mounted PV systems when installed according to safety practices

How to use

Install the surge arrester in the PV DC circuit in accordance with local electrical codes and the system designer’s instructions. Typically the device is mounted in a combiner box or near the array strings on the DC side, with correct polarity and secure conductor terminations. Verify that the installation location provides appropriate protection from mechanical damage and environmental exposure consistent with the device’s intended use. After installation, inspect connections and grounding arrangements and test system continuity before energizing the PV array.

Usage recommendations

Use this Type 2 surge arrester as part of a coordinated surge protection scheme that includes proper grounding and, where required, upstream or downstream protection devices. Regular visual inspections and functional checks after lightning events or major switching operations will help ensure continued protection of PV system components.