Why Choose the ABB OVR T2 3N 40-440 P QS Surge Protective Device?
The ABB OVR T2 3N 40-440 P QS is a high-performance Type 2 surge protective device (SPD) designed to protect three-phase plus neutral low-voltage electrical installations against transient overvoltages caused by indirect lightning effects and electrical switching events. As part of the ABB OVR QuickSafe surge protection range, it provides dependable protection for electrical distribution systems and sensitive equipment in commercial and industrial applications.
Designed with a 3+N four-pole configuration, the OVR T2 3N 40-440 P QS provides a nominal discharge current of 20 kA and a maximum discharge current of 40 kA per protected pole using the standard 8/20 µs surge waveform. Its pluggable construction allows individual protection cartridges to be replaced, simplifying maintenance while retaining the DIN-rail base assembly.
With a maximum continuous operating voltage of 440 V AC and compatibility with 400/690 V AC systems, this Type 2 SPD is suitable for higher-voltage three-phase distribution networks. Its compact four-module DIN-rail format, IP20 protection and visual status indication make it suitable for integration into distribution boards, switchgear and industrial electrical control panels.
Key Advantages
- Reliable Type 2 surge protection for three-phase plus neutral electrical systems.
- 40 kA maximum discharge current per protected pole for effective transient overvoltage protection.
- 20 kA nominal discharge current per protected pole using an 8/20 µs waveform.
- 440 V AC maximum continuous operating voltage.
- Suitable for nominal system voltages up to 400/690 V AC.
- Pluggable cartridges simplify inspection, servicing and replacement.
- Integrated ABB QuickSafe technology supports dependable end-of-life disconnection.
- Visual status indication allows straightforward inspection of SPD condition.
- DIN-rail mounting integrates easily with modular electrical distribution equipment.
Key Features
- ABB OVR T2 QuickSafe series.
- Type 2 / Class II surge protective device.
- 3+N configuration with four protected poles.
- 40 kA maximum discharge current Imax per protected pole.
- 20 kA nominal discharge current In per protected pole.
- 160 kA total maximum discharge capability.
- 440 V AC maximum continuous operating voltage Uc.
- 2 kA impulse current Iimp using a 10/350 µs waveform.
- Pluggable protection cartridges for convenient maintenance.
- Visual operating-status indication.
- IP20 degree of protection.
- Compatible with ABB System pro M compact equipment.
- DIN-rail mounting for modular distribution boards and control panels.
Reliable Type 2 Protection for Three-Phase Distribution Systems
Type 2 surge protective devices are installed in low-voltage distribution systems to limit transient overvoltages before they can damage connected electrical and electronic equipment. The ABB OVR T2 3N 40-440 P QS safely diverts surge currents away from protected circuits, helping safeguard switchgear, automation equipment, drives, control systems and other sensitive loads.
Its four-pole 3+N configuration provides surge protection across all three phases and neutral, while the 440 V AC Uc rating makes it suitable for installations requiring a higher continuous operating voltage than conventional 275 V SPDs. Pluggable construction and visual status indication help simplify inspection and maintenance throughout the installation's service life.
Typical Applications
- Three-phase plus neutral low-voltage distribution boards.
- 400/690 V AC electrical distribution systems.
- Commercial and industrial electrical installations.
- Industrial machinery and automation panels.
- Switchgear and power distribution assemblies.
- Protection of PLCs, drives and electronic control equipment.
- Building electrical distribution and infrastructure systems.
