Why Choose the ABB OVR T2 1N 80-275s P TS QS Surge Protective Device?
The ABB OVR T2 1N 80-275s P TS QS is a two-pole Type 2 surge protective device (SPD) designed to protect single-phase plus neutral low-voltage installations against transient overvoltages caused by indirect lightning effects and electrical switching events. Identified by ABB order code 2CTB815708R0200, it is designed for 230 V AC TT and TN-S systems and provides coordinated protection across the line-neutral and neutral-earth paths.
This high-capacity ABB OVR device provides a 20 kA nominal discharge current (In) and 80 kA maximum discharge current (Imax) using an 8/20 µs waveform. It also provides a 6.25 kA impulse current (Iimp) using a 10/350 µs waveform, with voltage protection levels of 1.4 kV across L-N and 1.4 kV across N-PE.
The OVR T2 1N 80-275s P TS QS combines ABB's patented QuickSafe technology with the Safety Reserve system, integrated thermal disconnection and pluggable cartridges. Visual end-of-life indication supports local inspection, while the TS remote signalling contact provides one normally open and one normally closed auxiliary contact for external condition monitoring.
Key Advantages
- Type 2 / Class II surge protection for single-phase plus neutral installations.
- 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 L-N and N-PE voltage protection levels.
- ABB Safety Reserve system retains basic protection after the primary protection stage reaches end of life.
- Patented QuickSafe technology with integrated thermal disconnection.
- TS remote signalling supports external monitoring of SPD status.
- Pluggable cartridges allow individual protection modules to be replaced during maintenance.
Key Features
- ABB OVR T2 surge protection range.
- Type 2 / Class II surge protective device.
- 1N / single-phase plus neutral configuration.
- Two protected poles.
- Suitable for TT and TN-S low-voltage distribution systems.
- 230 V AC rated 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).
- 80 kA total discharge current (Itotal).
- Patented QuickSafe and Safety Reserve technologies.
- Visual status indication and TS auxiliary contacts.
- Pluggable construction for DIN rail mounting.
High-Capacity Type 2 Protection with Safety Reserve and Remote Monitoring
Type 2 SPDs are designed to discharge surge currents generated by indirect lightning effects and switching events before damaging transient voltages propagate through the installation. The ABB OVR T2 1N 80-275s P TS QS combines an 80 kA maximum discharge-current capability with low L-N and N-PE protection levels, making it suitable for demanding single-phase plus neutral distribution-board applications.
ABB's Safety Reserve system uses an additional protection stage so the SPD is not left completely without surge protection when its primary protection stage reaches end of life. Together with QuickSafe thermal disconnection, replaceable cartridges, visual indication and remote signalling, this allows the device's condition to be identified promptly and replacement maintenance to be planned.
Typical Applications
- 230 V AC single-phase plus neutral electrical installations.
- TT and TN-S low-voltage distribution systems.
- Main electrical distribution switchboards.
- Intermediate and sub-distribution boards.
- Commercial building electrical systems.
- Industrial low-voltage distribution installations.
- Control and automation panels requiring high-capacity surge protection.
- Installations requiring remote monitoring of SPD condition.
