Why Choose the ABB OVR T2-T3 N 80-275 P QS Surge Protection Device?
The ABB OVR T2-T3 N 80-275 P QS, order code 2CTB803973R1900, is a pluggable surge protection device (SPD) designed to protect low-voltage electrical installations against transient overvoltages caused by indirect lightning and electrical switching events. As part of the ABB OVR QuickSafe surge protection range, this single-pole neutral protection device combines high surge-current handling capability with a compact DIN rail format for electrical distribution applications.
Designed for 230/400 V AC TT and TN-S networks, the OVR T2-T3 N 80-275 P QS provides a maximum discharge current (Imax) of 80 kA and a nominal discharge current (In) of 30 kA. Its 1.4 kV voltage protection level (Up) helps limit transient overvoltages reaching downstream electrical and electronic equipment.
With a 275 V AC maximum continuous operating voltage, pluggable construction and a compact one-module design, the OVR T2-T3 N 80-275 P QS is suitable for installation in compatible electrical distribution boards. Its high discharge capacity makes it particularly useful as the neutral protection element within coordinated surge protection arrangements for residential, commercial and industrial installations.
Key Advantages
- High-capacity surge protection for low-voltage electrical installations.
- 80 kA maximum discharge current (Imax) with an 8/20 µs waveform.
- 30 kA nominal discharge current (In) with an 8/20 µs waveform.
- 6.25 kA impulse current with a 10/350 µs waveform.
- 1.4 kV voltage protection level (Up) helps limit transient voltage reaching downstream equipment.
- 275 V AC maximum continuous operating voltage for compatible 230/400 V AC systems.
- Designed for neutral protection in TT and TN-S networks.
- Pluggable QuickSafe construction simplifies inspection and replacement.
Key Features
- ABB OVR QuickSafe surge protection range.
- OVR T2-T3 neutral surge protection device.
- Single-pole neutral protection configuration.
- 80 kA maximum discharge current (8/20 µs).
- 30 kA nominal discharge current (8/20 µs).
- 6.25 kA impulse current (10/350 µs).
- 275 V AC maximum continuous operating voltage.
- 1.4 kV voltage protection level.
- 100 kA short-circuit withstand.
- Pluggable protection element for convenient maintenance.
- DIN rail mounting for electrical distribution boards.
- IP20 protection rating.
- Compliant with IEC 61643-11 / EN 61643-11.
Reliable Neutral Surge Protection for Electrical Systems
Surge protection devices help safeguard low-voltage electrical installations by diverting transient surge currents and limiting the voltage reaching connected equipment. High-capacity protection is particularly important where electrical systems may be exposed to transient overvoltages generated by indirect lightning activity or switching operations within the power distribution network.
The ABB OVR T2-T3 N 80-275 P QS is designed as a neutral protection element for compatible TT and TN-S systems. Its high discharge-current capability, low voltage protection level and pluggable QuickSafe construction make it suitable for coordinated surge protection installations where dependable performance and straightforward maintenance are required.
Typical Applications
- 230/400 V low-voltage electrical installations.
- TT and TN-S electrical distribution networks.
- Main and sub-distribution boards.
- Residential electrical distribution systems.
- Commercial building electrical installations.
- Industrial control and distribution panels.
- Neutral protection within coordinated surge protection systems.
- Protection against indirect lightning-induced and electrical switching surges.
