2CTB803983R0500 ABB OVR T2 3N 40-350 P TS QS Type 2 Surge Protective Device

Why Choose the ABB OVR T2 3N 40-350 P TS QS Surge Protective Device?

The ABB OVR T2 3N 40-350 P TS 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 switching events. Identified by ABB order code 2CTB803983R0500, it provides coordinated surge protection for 230/400 V AC TT and TN-S networks.

As part of the ABB OVR Type 2 QuickSafe surge protection range, this four-pole SPD uses a 3+1 protection configuration and pluggable protection cartridges for convenient maintenance. The TS remote signalling contact allows the operating status of the SPD to be monitored remotely, making the device particularly suitable for commercial and industrial distribution systems where centralised condition monitoring is required.

The OVR T2 3N 40-350 P TS QS has a 350 V AC maximum continuous operating voltage (Uc), a 20 kA nominal discharge current (In) and a 40 kA maximum discharge current (Imax) using an 8/20 µs waveform. Its low voltage protection level helps limit damaging transient voltages before they reach sensitive downstream electrical and electronic equipment.

Key Advantages

• High-performance Type 2 surge protection for three-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.
• 3+1 protection configuration for TT and TN-S 230/400 V AC networks.
• Integrated TS auxiliary contact provides remote SPD status signalling.
• Pluggable protection cartridges simplify maintenance and replacement.
• DIN rail mounting and ABB System pro M compact design support straightforward distribution-board integration.

Key Features

• ABB OVR Type 2 QuickSafe surge protection series.
• Type 2 / Class II surge protective device.
• 3+1 / three-phase plus neutral protection configuration.
• 230/400 V AC nominal system voltage.
• 350 V AC maximum continuous operating voltage (Uc).
• 20 kA nominal discharge current (In, 8/20 µs).
• 40 kA maximum discharge current (Imax, 8/20 µs).
• Low voltage protection level (Up) for downstream equipment protection.
• Fast <25 ns response time.
• TS remote signalling contact rated up to 250 V AC / 1 A.
• Pluggable phase and neutral protection cartridges.
• IP20 protection rating for installed modular applications.

Reliable Type 2 Protection for Three-Phase Distribution Systems

Type 2 surge protective devices are designed to discharge surge currents generated by indirect lightning strikes and switching operations before damaging transient voltages reach downstream equipment. Their performance is characterised using an 8/20 µs current waveform, making them suitable for installation in main and sub-distribution switchboards where effective protection against conducted and induced overvoltages is required.

The ABB OVR T2 3N 40-350 P TS QS combines high surge-current capability with pluggable QuickSafe construction and remote status signalling. Its replaceable phase and neutral cartridges simplify maintenance, while the TS contact enables integration with monitoring systems so that changes in SPD condition can be identified remotely.

Typical Applications

• 230/400 V AC three-phase electrical distribution boards.
• TT and TN-S low-voltage distribution systems.
• Main and sub-distribution switchboards.
• Industrial control panels and automation systems.
• Commercial and industrial building installations.
• Protection of PLCs, controllers and sensitive electronic equipment.
• Installations requiring remote surge protection status monitoring.