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Surge arresters for photovoltaic systems

Surge arresters for photovoltaic systems
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Surge arresters for photovoltaic systems

Product catalog summary
Overview: This document outlines the technical specifications and guidelines for surge arresters used in photovoltaic (PV) systems, focusing on protection against overvoltage and lightning. These devices comply with EN 50539-11 standards, crucial for the safety and longevity of PV installations.
Specifications: Various models of surge arresters are detailed, including FLP-PV700, FLP-PV500, SLP-PV600, SLP-PV500, and SLP-PV170. Key parameters include maximum continuous operating voltage (UCPV) ranging from 170 V DC to 1200 V DC, nominal discharge current (In), maximum discharge current (Imax), and voltage protection level (Up).
Design and Installation: Designed for direct current circuits in solar PV systems, these surge arresters feature replaceable varistor modules and visual fault signaling, with optional remote status signaling. Installation requires a 35 mm DIN rail, and they operate in temperatures from -40 °C to +80 °C.
Protection Standards: The integration of surge protection devices (SPDs) is emphasized to prevent damage from lightning and overvoltage, referencing standards like HD 60364-7-712 and EN 62305.
Key Recommendations: SPDs should have a maximum continuous operating voltage at least 1.2 times the open-circuit voltage (UOC STC) of the PV system. Proper grounding and inverter integration are essential for effective protection.
Conclusion: Effective protection against atmospheric and induced overvoltage is vital for PV system safety. The document provides detailed specifications and installation guidelines to ensure comprehensive protection.
Additional Specifications: Photovoltaic panels with insulated LPS require SLP-PVxxx or FLP-PVxxx products.
Procedures: If the distance between the inverter and PV modules exceeds 10 meters, two SPDs are necessary on the DC side. One should be placed in front of the PV modules and another in front of the inverter. For distances less than 10 meters, one SPD is sufficient, typically in front of the inverter.
Additional Recommendations: An SPD should also be installed on the AC side of the inverter, and another should protect the data communication lines of the inverter.
Standards: All SPDs for PV systems are tested according to EN 50539-11.
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Catalog excerpts

Surge arresters for photovoltaic systems-1

SURGE ARRESTERS FOR PHOTOVOLTAIC SYSTEMS

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Surge arresters for photovoltaic systems-2

Remote signalling optional (recommended!)

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Surge arresters for photovoltaic systems-3

SLP-PV170 V/U SLP-PV170 V/U S SPD type 2 – surge arrester for photovoltaic systems Replaceable varistor module, visual fault signalling Surge arrester is specially designed for installation in the direct current circuits of solar photovoltaic systems. Optional remote status signalling (S). Maximum continuous operating voltage for PV application: UCPV ≥ 1,2× UOC STC Dimension drawing Basic circuit diagram 1 connection of signalization terminal Technical data Maximum continuous operating voltage (1/23) Maximum continuous operating voltage – wiring “I” (12) Nominal discharge current (8/20 μs) Voltage...

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Surge arresters for photovoltaic systems-4

SLP-PV500 V/U SLP-PV500 V/U S SPD type 2 – surge arrester for photovoltaic systems Replaceable varistor module, visual fault signalling Surge arrester is specially designed for installation in the direct current circuits of solar photovoltaic systems. Optional remote status signalling (S). Maximum continuous operating voltage for PV application: UCPV ≥ 1,2× UOC STC Dimension drawing Basic circuit diagram 1 connection of signalization terminal Technical data Maximum continuous operating voltage (1/23) Maximum continuous operating voltage – wiring “I” (12) Nominal discharge current (8/20 μs) Voltage...

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Surge arresters for photovoltaic systems-5

SLP-PV600 V/U SLP-PV600 V/U S SPD type 2 – surge arrester for photovoltaic systems Replaceable varistor module, visual fault signalling Surge arrester is specially designed for installation in the direct current circuits of solar photovoltaic systems. Optional remote status signalling (S). Maximum continuous operating voltage for PV application: UCPV ≥ 1,2× UOC STC Dimension drawing Basic circuit diagram 1 connection of signalization terminal Technical data Maximum continuous operating voltage (1/23) Maximum continuous operating voltage – wiring “I” (12) Nominal discharge current (8/20 μs) Voltage...

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Surge arresters for photovoltaic systems-6

SLP-PV700 V/Y SLP-PV700 V/Y S SPD type 2 – surge arrester for photovoltaic systems Replaceable varistor module, visual fault signalling Surge arrester is specially designed for installation in the direct current circuits of photovoltaic/solar systems. Optional remote status signalling (S). Maximum continuous operating voltage for PV application: UCPV ≥ 1,2× UOC STC Dimension drawing Basic circuit diagram 1 connection of signalization terminal Technical data Maximum continuous operating voltage Nominal discharge current (8/20 μs) Voltage protection level Short-circuit withstand Response time Range...

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Surge arresters for photovoltaic systems-7

SLP-PV1000 V/Y SLP-PV1000 V/Y S SPD type 2 – surge arrester for photovoltaic systems Replaceable varistor module, visual fault signalling Surge arrester is specially designed for installation in the direct current circuits of photovoltaic/solar systems. Optional remote status signalling (S). Maximum continuous operating voltage for PV application: UCPV ≥ 1,2× UOC STC Dimension drawing Basic circuit diagram 1 connection of signalization terminal Technical data Maximum continuous operating voltage Nominal discharge current (8/20 μs) Voltage protection level Short-circuit withstand Response time...

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Surge arresters for photovoltaic systems-8

SLP-PV1200 V/Y SLP-PV1200 V/Y S SPD type 2 – surge arrester for photovoltaic systems Replaceable varistor module, visual fault signalling Surge arrester is specially designed for installation in the direct current circuits of photovoltaic/solar systems. Optional remote status signalling (S). Maximum continuous operating voltage for PV application: UCPV ≥ 1,2× UOC STC Dimension drawing Basic circuit diagram 1 connection of signalization terminal Technical data Maximum continuous operating voltage Nominal discharge current (8/20 μs) Voltage protection level Short-circuit withstand Response time...

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Surge arresters for photovoltaic systems-9

FLP-PV500 V/U FLP-PV500 V/U S SPD type 1 – surge arrester for photovoltaic systems Replaceable varistor module, visual fault signalling Surge arrester is specially designed for installation in the direct current circuits of solar photovoltaic systems. Optional remote status signalling (S). Maximum continuous operating voltage for PV application: UCPV ≥ 1,2× UOC STC Dimension drawing Basic circuit diagram connection of signalization terminal Technical data Maximum continuous operating voltage (1/23) Nominal discharge current (8/20 μs) Lighting impulse current (10/350 μs) Voltage protection level...

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Surge arresters for photovoltaic systems-10

FLP-PV700 V/U FLP-PV700 V/U S SPD type 1 – surge arrester for photovoltaic systems Replaceable varistor module, visual fault signalling Surge arrester is specially designed for installation in the direct current circuits of solar photovoltaic systems. Optional remote status signalling (S). Maximum continuous operating voltage for PV application: UCPV ≥ 1,2× UOC STC Dimension drawing Basic circuit diagram connection of signalization terminal Technical data Maximum continuous operating voltage (1/23) Nominal discharge current (8/20 μs) Lighting impulse current (10/350 μs) Voltage protection level...

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Surge arresters for photovoltaic systems-11

FLP-PV1000 V/Y FLP-PV1000 VS/Y SPD type 1 – surge arrester for photovoltaic systems Surge arrester is specially designed for installation in the direct current circuits of photovoltaic/solar systems. Maximum continuous operating voltage for PV application: UCPV ≥ 1,2× UOC STC Optional: remote status signalling (S). Dimension drawing Basic circuit diagram 1 Technical data Maximum continuous operating voltage (+/– ) Nominal discharge current (8/20 μs) Lighting impulse current (10/350 μs) Voltage protection level (+–) Voltage protection level (+/– ) Short-circuit withstand Response time Range of...

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Surge arresters for photovoltaic systems-12

Protection of photovoltaic systems Photovoltaic arrays are costly to install and demanding in terms of technology. Their service life must be measured in decades to see a return on the invested funds. Manufacturers usually provide about a twenty-year guarantee for photovoltaic systems. To provide trouble-free technology throughout its service life, it is necessary to include comprehensive protection against atmospheric and induced overvoltage at the design stage to implement the technology into the project. Protection must be provided not only at the output side of the inverter, but also at the...

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