Why Choose the ABB OVR T1-T2 N 100-255 C Surge Protection Cartridge?
The ABB OVR T1-T2 N 100-255 C, order code 2CTB813012R2300, is a replaceable Type 1+2 surge protection cartridge designed for neutral-to-earth protection in compatible ABB OVR surge protection assemblies. Intended for low-voltage TT and TN-S electrical systems, it provides high-capacity protection against lightning currents and transient overvoltages.
Designed for systems with nominal AC voltages from 233–400 V AC, the OVR T1-T2 N 100-255 C has a maximum continuous operating voltage (Uc) of 255 V AC between N-PE. It provides a substantial 100 kA impulse current (Iimp) with a 10/350 µs waveform, alongside a 25 kA nominal discharge current (In) and 60 kA maximum discharge current (Imax) with an 8/20 µs waveform.
With a 1.5 kV voltage protection level, 100 kA short-circuit withstand capability and compact replaceable construction, the cartridge provides a straightforward way to restore compatible ABB OVR Type 1+2 surge protection devices after the protection element reaches the end of its service life.
Key Advantages
- Replaceable Type 1+2 neutral-to-earth surge protection cartridge.
- High 100 kA impulse current (Iimp) with a 10/350 µs waveform.
- 60 kA maximum discharge current (Imax) with an 8/20 µs waveform.
- 25 kA nominal discharge current (In) with an 8/20 µs waveform.
- 1.5 kV voltage protection level (Up) helps limit transient overvoltages.
- 255 V AC maximum continuous operating voltage between neutral and protective earth.
- 100 kA short-circuit withstand capability for demanding low-voltage installations.
- Replaceable cartridge design enables servicing without replacing the complete compatible SPD assembly.
Key Features
- ABB OVR T1-T2 surge protection range.
- Type 1+2 surge protection cartridge.
- Single-pole neutral-to-earth (N-PE) protection.
- Suitable for TT and TN-S low-voltage distribution systems.
- 100 kA impulse current (10/350 µs).
- 60 kA maximum discharge current (8/20 µs).
- 25 kA nominal discharge current (8/20 µs).
- 255 V AC maximum continuous operating voltage.
- 1.5 kV voltage protection level.
- 100 kA rated service short-circuit breaking capacity.
- 100 kA short-circuit withstand.
- Compact replaceable cartridge construction.
- Compliant with IEC 61643-11, EN 61643-11 and UL 1449 5th Edition.
High-Capacity Replacement Protection for TT and TN-S Systems
Type 1+2 surge protection combines the ability to handle high-energy lightning-current impulses with protection against transient overvoltages generated by indirect lightning and switching events. Neutral-to-earth protection is particularly important within compatible TT and TN-S surge protection arrangements, providing a controlled discharge path between neutral and protective earth during transient events.
The ABB OVR T1-T2 N 100-255 C provides a 100 kA 10/350 µs impulse-current capability together with 60 kA maximum 8/20 µs discharge current. As a replaceable cartridge, it allows compatible ABB OVR assemblies to be serviced efficiently while retaining the existing SPD base and associated installation wiring.
Typical Applications
- Replacement cartridge for compatible ABB OVR T1-T2 surge protection assemblies.
- TT low-voltage electrical distribution systems.
- TN-S low-voltage electrical distribution systems.
- Neutral-to-earth protection in coordinated SPD installations.
- Main electrical distribution boards.
- Commercial building electrical systems.
- Industrial low-voltage distribution installations.
- Protection against lightning currents and transient overvoltages.
