ABB – OVR PV T1‑T2 5‑1500 C QS (2CTB812052R1500) – 1+N DC Surge Arrester, 1500 V

The ABB OVR PV T1‑T2 5‑1500 C QS (P/N 2CTB812052R1500) is a premium plug‑in surge protection cartridge designed for high-voltage photovoltaic systems rated up to 1500 V DC. This Class I+II arrester, suitable for T1–T2 protection levels, safeguards PV arrays and inverters from transient overvoltage events, including lightning strikes and switching surges. Its modular QS design installs easily into ABB DB surge modules for fast replacement and maintenance.

Key Specifications

• Model / P/N: OVR PV T1‑T2 5‑1500 C QS / 2CTB812052R1500  

• Protection Type: DC surge arrester for T1+T2 levels (lightning and switching)

• Nominal Voltage: 1500 V DC (suitable for high-voltage PV systems)  

• Max Continuous Voltage: 1500 V DC, 1500 V MPP

• Discharge Ratings:

  • 20 kA (8/20 µs nominal)

  • 40 kA (8/20 µs max)

  • 5 kA (10/350 µs total)  

• Service Current Breaking Capacity: 11 kA  

• Protection Level (Up): 5 kV  

• Poles: 1 + N (two-conductor protection)  

• Mounting: Plug-in cartridge; fits standard DIN-rail SPD modules  

• Operating Temp: –40 °C to +80 °C

• IP Rating: IP20; RoHS compliant  

• Dimensions: 24 × 45 × 74 mm; 87 g