Why Choose the Lovato SG2EDGK10M3R Type 1+2 Surge Protection Device?
The Lovato SG2EDGK10M3R is a high-performance Type 1+2 surge protection device (SPD) specifically designed for the DC side of photovoltaic installations. Part of the Lovato SG2E range, it provides coordinated protection against transient overvoltages and is designed for photovoltaic systems operating at up to 1100 V DC.
The SG2EDGK10M3R features a +, −, PE pole arrangement, a rated discharge current In of 20 kA and a maximum discharge current Imax of 40 kA using an 8/20 µs waveform. It supports a maximum photovoltaic short-circuit current Iscpv of 11 kA and provides a voltage protection level Up of less than 3.8 kV.
Designed for professional photovoltaic installations, the SG2EDGK10M3R uses plug-in replaceable protection cartridges and incorporates frontal operating/end-of-life indication together with an auxiliary changeover contact for remote status signalling. Its 3-module DIN rail construction enables straightforward integration into PV combiner boxes, distribution equipment and electrical control panels.
Key Advantages
- Combined Type 1+2 surge protection specifically for photovoltaic applications.
- Designed for high-voltage PV systems up to 1100 V DC.
- 20 kA rated discharge current In and 40 kA maximum discharge current Imax.
- Maximum photovoltaic short-circuit current Iscpv of 11 kA.
- Plug-in replaceable cartridges simplify servicing and maintenance.
- Integrated frontal indication and remote status contact.
- Compact 3 DIN module construction for photovoltaic distribution equipment.
Key Features
- Lovato SG2E series photovoltaic surge protection device.
- Type 1+2 / Class I+II protection.
- Photovoltaic DC application.
- +, −, PE pole arrangement.
- 1100 V DC rated operational voltage.
- 1100 V DC maximum continuous voltage Ucpv.
- 20 kA rated discharge current In (8/20 µs).
- 40 kA maximum discharge current Imax (8/20 µs).
- <3.8 kV voltage protection level Up.
- <25 ns response time.
- Thermal isolation protection and frontal status indication.
- Auxiliary changeover contact for remote status indication.
High-Voltage Surge Protection for Photovoltaic Systems
Photovoltaic arrays and their associated DC cabling can be exposed to transient overvoltages caused by lightning effects and electrical switching events. The Lovato SG2EDGK10M3R is designed for installation on the direct-current side of photovoltaic systems, where it helps limit transient voltages before they can reach sensitive equipment such as inverters and associated power electronics.
Its combined Type 1+2 protection, 1100 V DC rating, 20 kA nominal discharge current and 40 kA maximum discharge capability make the SG2EDGK10M3R suitable for coordinated PV surge protection. Replaceable cartridges, visual status indication and a remote signalling contact also simplify inspection and maintenance throughout the installation's service life.
Typical Applications
- Photovoltaic DC power installations.
- Commercial and industrial solar PV systems.
- PV combiner and string boxes.
- DC distribution equipment for solar installations.
- Protection of photovoltaic inverter DC inputs.
- High-voltage PV systems operating up to 1100 V DC.
