Why Choose the ABB OVR T2 80-440s P TS QS Surge Protective Device?
The ABB OVR T2 80-440s P TS QS is a single-pole Type 2 surge protective device (SPD) designed to protect low-voltage electrical installations and sensitive equipment against transient overvoltages caused by indirect lightning effects and electrical switching events. Identified by ABB order code 2CTB815708R2900, it is suitable for 400/690 V AC systems and TT, TN-C, TN-S and IT low-voltage distribution arrangements.
Designed for applications requiring high surge-current capability, the OVR T2 80-440s P TS QS provides a 30 kA nominal discharge current (In), an 80 kA maximum discharge current (Imax) using an 8/20 µs waveform and a 6.25 kA impulse-current capability (Iimp) using a 10/350 µs waveform. Its 440 V AC maximum continuous operating voltage (Uc) and 1.8 kV voltage protection level (Up) suit higher-voltage AC distribution applications.
ABB combines QuickSafe technology with a Safety Reserve function, which retains basic protection through an additional varistor when the primary protection stage reaches the end of its service life. The device is pluggable for straightforward maintenance, while its local status indicator and TS 1NO + 1NC remote signalling contacts allow both visual and external monitoring of protection condition.
Key Advantages
- Type 2 / Class II surge protection for higher-voltage low-voltage AC distribution systems.
- High 80 kA maximum discharge current (Imax) using an 8/20 µs waveform.
- 30 kA nominal discharge current (In) for robust Type 2 surge protection.
- 6.25 kA impulse current (Iimp) using a 10/350 µs waveform.
- 440 V AC maximum continuous operating voltage (Uc).
- ABB Safety Reserve functionality retains basic protection after the main protection stage reaches end of life.
- Pluggable cartridge construction supports straightforward replacement and servicing.
- TS remote signalling allows integration with external alarm, monitoring and building-management systems.
Key Features
- ABB OVR T2 surge protection range.
- Type 2 / Class II surge protective device.
- Single-pole / single protected line.
- Varistor technology.
- Suitable for TT, TN-C, TN-S and IT distribution systems.
- 400 V AC nominal voltage.
- 400/690 V AC nominal system voltage.
- 440 V AC maximum continuous operating voltage (Uc).
- 30 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).
- 1.8 kV voltage protection level (Up).
- 100 kA short-circuit withstand capability.
- ≤25 ns response time.
- Safety Reserve preventive-maintenance functionality.
- Local status indication plus 1NO + 1NC remote signalling.
- Pluggable DIN rail construction.
High-Capacity Type 2 Protection with Safety Reserve and Remote Monitoring
Type 2 SPDs are designed to discharge currents produced by indirect lightning strikes and conducted or induced overvoltages on the power distribution network. The ABB OVR T2 80-440s P TS QS combines an 80 kA maximum discharge-current capability with a 30 kA nominal discharge current and 1.8 kV protection level, providing substantial transient protection for compatible higher-voltage AC distribution systems.
The Safety Reserve function provides an additional level of protection when the main protection stage reaches the end of its service life, allowing the installation to retain basic protection until cartridge replacement can be carried out. Combined with pluggable construction, local status indication and 1NO + 1NC TS contacts, this supports efficient inspection, remote condition monitoring and planned SPD maintenance.
Typical Applications
- 400/690 V AC low-voltage distribution systems.
- TT, TN-C, TN-S and IT electrical networks.
- Main low-voltage distribution switchboards.
- Intermediate and sub-distribution boards.
- Commercial building electrical systems.
- Industrial power-distribution installations.
- Control and automation panels requiring high-capacity Type 2 surge protection.
- Installations requiring remote monitoring of SPD protection status.
