Why Choose the ABB OVR T2 1N 40-350 P QS Surge Protective Device?
The ABB OVR T2 1N 40-350 P QS is a high-performance Type 2 surge protective device (SPD) designed to protect low-voltage electrical installations against transient overvoltages caused by indirect lightning effects and switching events. Identified by ABB order code 2CTB803982R1100, this two-pole device is designed for single-phase plus neutral applications in TT and TN-S networks.
As part of the ABB OVR Type 2 QuickSafe surge protection range, the OVR T2 1N 40-350 P QS combines high surge-current handling capability with pluggable protection cartridges and visual status indication. Its modular DIN rail construction simplifies installation and maintenance in residential, commercial and industrial distribution boards.
The device is designed for a 230 V AC nominal system voltage and has a 350 V AC maximum continuous operating voltage. It provides a 20 kA nominal discharge current (In) and a 40 kA maximum discharge current (Imax) using an 8/20 µs waveform, providing dependable protection for downstream electrical and electronic equipment.
Key Advantages
- High-performance Type 2 surge protection for single-phase plus neutral systems.
- 40 kA maximum discharge current (Imax) for effective transient overvoltage protection.
- 20 kA nominal discharge current (In) using an 8/20 µs waveform.
- 350 V AC maximum continuous operating voltage.
- Suitable for TT and TN-S low-voltage distribution networks.
- Pluggable protection cartridges simplify maintenance and replacement.
- Integrated visual status indication assists with routine inspection.
- Compact two-module DIN rail format for distribution boards and control panels.
Key Features
- ABB OVR Type 2 QuickSafe surge protection series.
- Type 2 / Class II surge protective device.
- 1+1 single-phase plus neutral protection configuration.
- 230 V AC nominal system voltage.
- 350 V AC maximum continuous operating voltage.
- 20 kA nominal discharge current (In, 8/20 µs).
- 40 kA maximum discharge current (Imax, 8/20 µs).
- 2 kA impulse current capability (10/350 µs).
- 1.5 kV L-N voltage protection level at In.
- 1.4 kV N-PE voltage protection level.
- <25 ns response time.
- Pluggable protection modules with visual status indication.
Reliable Type 2 Protection for Low-Voltage Installations
Type 2 surge protective devices are designed to divert surge currents generated by indirect lightning effects and electrical switching events before damaging transient voltages reach downstream equipment. Installed at the origin of an installation, in intermediate distribution boards or close to terminal equipment, they help reduce the risk of insulation damage, electronic component failure and operational disruption.
The ABB OVR T2 1N 40-350 P QS combines a high 40 kA maximum discharge current with pluggable QuickSafe construction for convenient maintenance. Its phase protection cartridge can be replaced with the ABB OVR T2 40-350 C QS, while the neutral protection cartridge is replaceable with the compatible OVR T2 N 80-350 C QS.
Typical Applications
- 230 V AC single-phase electrical distribution boards.
- TT and TN-S low-voltage distribution systems.
- Residential and commercial building installations.
- Industrial control panels and automation systems.
- Intermediate and sub-distribution boards.
- Protection of sensitive electronic and control equipment.
- Electrical installations exposed to switching and indirect lightning transients.