Why Choose the ABB OVR T1-T2 1L 25-255 C Replacement Surge Protection Cartridge?
The ABB OVR T1-T2 1L 25-255 C, order code 2CTB813252R2300, is a replacement cartridge for compatible ABB OVR combined Type 1 and Type 2 surge protective devices. Designed for the OVR T1-T2 1L 25-255 range, it enables the surge protection element to be replaced while retaining the compatible installed SPD base and associated wiring.
The cartridge provides an impulse current Iimp of 25 kA using the 10/350 µs lightning-current waveform, together with a nominal discharge current In of 25 kA and a maximum discharge current Imax of 60 kA using the 8/20 µs waveform. These ratings provide combined protection against high-energy lightning currents and switching or induced transient overvoltages.
Designed for compatible ABB SPDs used in 230/400 V AC TT, TN-S and TN-C installations, the OVR T1-T2 1L 25-255 C has a maximum continuous operating voltage of 264 V AC and a voltage protection level of 1.5 kV. Its compact pluggable format makes it a convenient maintenance component for commercial and industrial surge protection systems.
Key Advantages
- Genuine ABB replacement cartridge for compatible OVR T1-T2 1L 25-255 SPDs.
- Combined Type 1 + Type 2 / Class I + II surge protection characteristics.
- 25 kA impulse current Iimp using the 10/350 µs lightning-current waveform.
- 25 kA nominal discharge current In using an 8/20 µs waveform.
- 60 kA maximum discharge current Imax for high-capacity transient protection.
- 1.5 kV voltage protection level helps limit transient stress on downstream equipment.
- Compatible with TT, TN-S and TN-C low-voltage distribution systems.
- Pluggable design enables replacement without changing the complete SPD assembly.
- Compact 36 mm-wide cartridge format.
Key Features
- ABB OVR T1-T2 series.
- Replacement surge protection cartridge.
- Type 1 + Type 2 / Class I + II performance.
- Suitable for TT, TN-S and TN-C systems when installed in the appropriate compatible SPD assembly.
- 25 kA impulse current Iimp using a 10/350 µs waveform.
- 25 kA total impulse current.
- 25 kA nominal discharge current In.
- 60 kA maximum discharge current Imax.
- 264 V AC maximum continuous operating voltage Uc.
- 1.5 kV voltage protection level Up.
- 50 kA follow-current interrupting capability.
- 50 kA short-circuit current rating.
- Pluggable cartridge construction for straightforward maintenance.
- IP20 protection when installed in the compatible assembly.
High-Capacity Replacement Cartridge for Combined Type 1 and Type 2 Protection
Surge protection elements are designed to conduct potentially damaging transient energy and may eventually require replacement following repeated surge events or a substantial lightning-current impulse. The ABB OVR T1-T2 1L 25-255 C allows compatible OVR T1-T2 assemblies to be restored by replacing the protection cartridge rather than removing and rewiring the complete SPD.
Its 25 kA 10/350 µs impulse-current rating provides Type 1 lightning-current performance, while the 25 kA nominal and 60 kA maximum 8/20 µs discharge-current ratings provide Type 2 transient surge performance. This combination makes the cartridge suitable for maintaining coordinated surge protection at main and sub-distribution levels in compatible ABB installations.
Typical Applications
- Replacement cartridge for ABB OVR T1-T2 1L 25-255 P SPDs.
- Replacement cartridge for ABB OVR T1-T2 1L 25-255 P TS SPDs.
- 230/400 V AC low-voltage electrical installations.
- TT, TN-S and TN-C distribution systems.
- Main electrical distribution boards.
- Commercial and industrial switchboards.
- Installations requiring combined lightning-current and transient surge protection.
- Maintenance of ABB OVR Type 1 and Type 2 surge protection assemblies.
