Why Choose the ABB OVR T1-T2 N 100-255 P TS Surge Protection Device?
The ABB OVR T1-T2 N 100-255 P TS, order code 2CTB813011R2300, is a pluggable Type 1+2 surge protection device (SPD) designed for neutral-to-earth protection in low-voltage TT and TN-S electrical systems. Using spark-gap technology, it combines high lightning-current discharge capability with a low residual voltage to provide coordinated protection at main and subdistribution boards.
Designed for 230/400 V AC networks, the OVR T1-T2 N 100-255 P TS provides an exceptional 100 kA impulse current (Iimp) with a 10/350 µs waveform between neutral and protective earth. It also has a 100 kA nominal discharge current (In) with an 8/20 µs waveform and a maximum continuous operating voltage (Uc) of 255 V AC.
The device provides a voltage protection level (Up) of ≤1.5 kV and incorporates a visual end-of-life indicator for straightforward condition checking. The TS version includes remote signalling contacts, allowing SPD status to be incorporated into monitoring or alarm systems, while its pluggable construction enables convenient replacement of the protection cartridge when required.
Key Advantages
- Combined Type 1+2 lightning-current and surge protection for low-voltage electrical installations.
- Exceptional 100 kA impulse current (Iimp) with a 10/350 µs waveform between N-PE.
- 100 kA nominal discharge current (In) with an 8/20 µs waveform.
- ≤1.5 kV voltage protection level (Up) helps limit transient overvoltages reaching downstream equipment.
- 255 V AC maximum continuous operating voltage between neutral and protective earth.
- Spark-gap technology provides high lightning-current handling capability.
- Remote signalling contacts enable external monitoring of SPD status.
- Pluggable construction allows convenient replacement of the protection cartridge.
Key Features
- ABB OVR T1-T2 surge protection range.
- Type 1+2 / Class I+II surge protection device.
- Single-pole neutral-to-earth (N-PE) protection.
- Suitable for TT and TN-S networks.
- 100 kA impulse current (10/350 µs).
- 100 kA nominal discharge current (8/20 µs).
- 255 V AC maximum continuous operating voltage.
- ≤1.5 kV voltage protection level.
- Spark-gap protection technology.
- Green/red visual end-of-life indication.
- 1 NO + 1 NC auxiliary contacts for remote signalling.
- 47–63 Hz operating frequency.
- Response time of <100 ns.
- DIN rail mounting for distribution-board installation.
- Pluggable protection cartridge for convenient servicing.
High-Capacity Type 1+2 Neutral-to-Earth Surge Protection
Type 1+2 surge protection devices combine the ability to discharge high-energy lightning currents with protection against transient overvoltages. The ABB OVR T1-T2 N 100-255 P TS is specifically configured for neutral-to-earth protection, using spark-gap technology to handle substantial lightning-current impulses while maintaining a voltage protection level of ≤1.5 kV.
The device is typically installed within main AC distribution switchboards or subdistribution boards as part of a coordinated surge protection system. Its 100 kA 10/350 µs impulse-current capability, visual condition indication and remote signalling contacts make it particularly suitable for installations where high-capacity surge protection and ongoing SPD status monitoring are required.
Typical Applications
- 230/400 V AC TT electrical distribution systems.
- 230/400 V AC TN-S electrical distribution systems.
- Neutral-to-earth protection in coordinated SPD installations.
- Main AC distribution switchboards.
- Subdistribution boards.
- Commercial and industrial electrical installations.
- Installations requiring remote SPD status signalling.
- Protection against high-energy lightning currents and transient overvoltages.
