Why Choose the ABB OVR T2 3L 80-275s P QS Surge Protective Device?
The ABB OVR T2 3L 80-275s P QS is a three-pole Type 2 surge protective device (SPD) designed to protect three-phase low-voltage power distribution systems against transient overvoltages generated by indirect lightning strikes and electrical switching events. Identified by ABB order code 2CTB815708R1800, it is designed for 230/400 V AC TN-C distribution systems and provides protection across three lines.
Designed for installations requiring high surge-current capability, the OVR T2 3L 80-275s P QS provides a 20 kA nominal discharge current (In) and an 80 kA maximum discharge current (Imax) using an 8/20 µs waveform. It also has a 6.25 kA impulse-current capability (Iimp) using a 10/350 µs waveform, together with a 275 V AC maximum continuous operating voltage and 1.4 kV voltage protection level (Up).
ABB combines its patented QuickSafe technology with the Safety Reserve system to support safe operation and preventive maintenance. The pluggable construction allows individual protection cartridges to be replaced without changing the complete DIN rail base, while the integrated optical status indication provides a clear local indication of SPD condition.
Key Advantages
- Type 2 / Class II surge protection for three-phase TN-C electrical systems.
- High 80 kA maximum discharge current (Imax) using an 8/20 µs waveform.
- 20 kA nominal discharge current (In) for Type 2 surge protection.
- 6.25 kA impulse current (Iimp) using a 10/350 µs waveform.
- 1.4 kV voltage protection level (Up) helps limit transient voltage stress on downstream equipment.
- ABB Safety Reserve functionality supports preventive maintenance and extends protection availability.
- Patented QuickSafe technology with integrated safety features.
- Pluggable cartridges simplify maintenance and replacement.
Key Features
- ABB OVR T2 surge protection range.
- Type 2 / Class II surge protective device.
- 3L / three-line configuration.
- Three poles and three protected poles.
- Designed for TN-C low-voltage distribution systems.
- 230 V AC nominal voltage.
- 230/400 V AC nominal system voltage.
- 275 V AC maximum continuous operating voltage (Uc).
- 20 kA nominal discharge current (In, 8/20 µs).
- 80 kA maximum discharge current (Imax, 8/20 µs).
- 6.25 kA impulse current (Iimp, 10/350 µs).
- 1.4 kV voltage protection level (Up).
- 100 kA short-circuit withstand capability.
- Patented QuickSafe and Safety Reserve technologies.
- Optical status indication for local condition checking.
- Pluggable three-module construction for DIN rail installation.
High-Capacity Type 2 Protection with Safety Reserve Technology
Type 2 SPDs are designed to discharge surge currents caused by indirect lightning strikes and induced or conducted overvoltages on the power distribution network. The ABB OVR T2 3L 80-275s P QS combines a 20 kA nominal discharge current with an 80 kA maximum discharge-current capability, providing substantial transient protection for three-phase TN-C distribution systems.
ABB's patented Safety Reserve system is designed to extend protection availability and support preventive maintenance, while QuickSafe technology provides enhanced safety within the SPD. Together with the pluggable cartridge format and optical status indication, these features allow the protection condition to be checked easily and individual cartridges to be replaced when maintenance becomes necessary.
Typical Applications
- 230/400 V AC TN-C electrical distribution systems.
- Main low-voltage distribution switchboards.
- Intermediate and sub-distribution boards.
- Commercial building electrical installations.
- Industrial power-distribution systems.
- Three-phase control and automation panels.
- Installations requiring high-capacity Type 2 surge protection.
- Electrical systems where Safety Reserve functionality supports planned SPD maintenance.
