Cathodic Arrester DC 2P 500V 20-40KA UP2.8Kv Photovoltaic System

DC Surge Protective Device for photovoltaic systems – model CT-2-500V / PV500

Type 2 modular DC surge protective device designed to protect photovoltaic DC circuits. Suitable for installation in DC distribution boards, string boxes and inverters, providing reliable protection against transient overvoltages and lightning surges.

Technical specifications:

Model: CT-2-500V (PV500)
Device type: Surge Protective Device (SPD)
EU Category: Type 2
Standard: EN 61643-31 / EN 50539-11:2013
Maximum PV voltage (UcPV): 500 V DC
Maximum continuous operating voltage (Uc): 630 V DC
Short-circuit current rating IscPV: 200 A
Nominal discharge current (8/20 μs) In: 20 kA
Maximum discharge current (8/20 μs) Imax: 40 kA
Voltage protection level Up: 2.8 kV
Response time: 25 ns
Protection mode: (DC+)–PE, (DC−)–PE, (DC+)–(DC−)
Protective elements: MOV
Number of poles: 2P (DC+ / DC−)
Number of ports: 1

Mechanical and installation data:

Mounting: 35 mm DIN rail (EN 60715)
Width: 3 modules (DIN 43880)
Enclosure material: thermoplastic
Installation location: indoor
Degree of protection: IP20
Operating temperature range: -40°C to +80°C
Status / fault indication: green / red

Connection:

Minimum conductor cross-section: 1.5 mm² (solid or flexible)
Maximum conductor cross-section: 35 mm² stranded / 25 mm² flexible

Remote signalling:

Contact type: changeover contact
AC switching capacity: 250 V / 0.5 A
DC switching capacity: 250 V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A
Maximum cross-section for signalling terminals: 1.5 mm²