Why Choose the ABB OVR PV T1-T2 12.5-1000 P QS Surge Protection Device?
The ABB OVR PV T1-T2 12.5-1000 P QS, order code 2CTB812120R1000, is a pluggable Type 1+2 photovoltaic surge protection device (SPD) designed to protect the DC side of solar PV installations against lightning currents and transient overvoltages. As part of the ABB OVR PV surge protection range, it combines Type 1 lightning-current protection with Type 2 surge protection for demanding photovoltaic applications.
Designed for 1000 V DC photovoltaic systems, the OVR PV T1-T2 12.5-1000 P QS provides an impulse current (Iimp) of 12.5 kA with a 10/350 µs waveform, a maximum discharge current (Imax) of 40 kA and a nominal discharge current (In) of 20 kA. These ratings provide coordinated protection against both high-energy lightning impulses and transient surge currents within photovoltaic installations.
With a 1100 V DC maximum continuous operating voltage (Ucpv) and a 3.8 kV voltage protection level (Up), this SPD is suited to modern 1000 V DC photovoltaic arrays. Its pluggable QuickSafe construction, integrated thermal disconnection and visual status indication support straightforward inspection and maintenance in PV combiner boxes, DC distribution panels and inverter protection applications.
Key Advantages
- Combined Type 1+2 lightning-current and surge protection specifically designed for photovoltaic DC installations.
- 12.5 kA impulse current (Iimp) with a 10/350 µs waveform.
- 40 kA maximum discharge current (Imax) with an 8/20 µs waveform.
- 20 kA nominal discharge current (In) with an 8/20 µs waveform.
- 1100 V DC maximum continuous operating voltage for 1000 V DC photovoltaic systems.
- 3.8 kV voltage protection level (Up) helps limit transient voltage reaching downstream PV equipment.
- Integrated thermal disconnection and visual status indication support efficient inspection and maintenance.
- Pluggable QuickSafe construction allows protection cartridges to be replaced without replacing the complete SPD assembly.
Key Features
- ABB OVR PV surge protection range.
- Type 1+2 / Class I+II photovoltaic surge protection device.
- Designed specifically for 1000 V DC photovoltaic networks.
- Protection for positive and negative photovoltaic conductors.
- 12.5 kA impulse current (10/350 µs).
- 40 kA maximum discharge current (8/20 µs).
- 20 kA nominal discharge current (8/20 µs).
- 1100 V DC maximum continuous operating voltage.
- 3.8 kV voltage protection level.
- 11 kA photovoltaic short-circuit current rating.
- Integrated thermal disconnector.
- Integrated visual status indication.
- Pluggable protection cartridges for convenient servicing.
- DIN rail mounting for PV distribution and protection equipment.
- IP20 protection rating.
High-Capacity Type 1+2 Protection for 1000 V Photovoltaic Systems
Photovoltaic installations can be exposed to high-energy lightning currents and induced transient overvoltages because solar arrays are often installed in exposed locations and connected by extensive DC cabling. Type 1+2 photovoltaic SPDs combine the ability to handle 10/350 µs lightning-current impulses with Type 2 protection against 8/20 µs surge currents, helping protect sensitive DC equipment throughout the installation.
The ABB OVR PV T1-T2 12.5-1000 P QS provides a 12.5 kA Type 1 impulse-current capability alongside a 40 kA maximum Type 2 discharge current. Its high-voltage DC design and pluggable construction make it suitable for coordinated protection of photovoltaic arrays, combiner boxes, DC distribution equipment and inverter inputs where robust lightning and surge protection is required.
Typical Applications
- 1000 V DC photovoltaic installations.
- Commercial and industrial solar PV systems.
- Utility-scale photovoltaic power installations.
- Solar PV combiner boxes.
- Photovoltaic DC distribution panels.
- PV inverter DC input protection.
- Installations requiring combined Type 1 and Type 2 surge protection.
- Protection against lightning currents and induced transient overvoltages.
