2CTB803873R2800 ABB OVR T2 3L 40-440 P QS Type 2 Surge Protective Device

Why Choose the ABB OVR T2 3L 40-440 P QS Surge Protective Device?

The ABB OVR T2 3L 40-440 P QS is a three-pole Type 2 surge protective device (SPD) designed to protect low-voltage electrical installations and sensitive equipment against transient overvoltages caused by indirect lightning effects and switching events. Part of the ABB OVR QuickSafe surge protection range, it is engineered for three-phase TN-C applications and provides high surge-current capability in a compact DIN-rail format.

The OVR T2 3L 40-440 P QS provides a maximum discharge current (Imax) of 40 kA and a nominal discharge current (In) of 20 kA using the standard 8/20 µs surge-current waveform. It has a 440 V AC maximum continuous operating voltage (Uc), a nominal voltage of 400/690 V AC and a 1.8 kV voltage protection level (Up).

Its pluggable QuickSafe construction enables individual protection cartridges to be replaced without changing the complete device base. Mechanical operating indicators provide convenient local condition checking, while the three-pole configuration occupies only 53.4 mm of DIN-rail width. This version is supplied without the TS auxiliary remote-signalling contact, making it a practical choice where local SPD status indication is sufficient.

Key Advantages

• Type 2 surge protection for three-phase low-voltage electrical systems.
• Three protected poles provide coordinated protection across three phase conductors.
• 40 kA maximum discharge current (Imax) for robust transient surge handling.
• 20 kA nominal discharge current (In) using an 8/20 µs waveform.
• 440 V AC maximum continuous operating voltage.
• 1.8 kV voltage protection level (Up) helps limit transient voltage reaching downstream equipment.
• QuickSafe technology supports reliable end-of-life disconnection.
• Pluggable protection cartridges simplify servicing and replacement.
• Mechanical status indication supports straightforward local inspection.
• Compact three-module DIN-rail format simplifies integration into distribution equipment.

Key Features

• ABB OVR Type 2 QuickSafe surge protective device.
• Three-pole configuration.
• Designed for TN-C 400 V network applications.
• 40 kA Imax maximum discharge current.
• 20 kA In nominal discharge current.
• 400/690 V AC nominal voltage.
• 440 V AC Uc maximum continuous operating voltage.
• 1.8 kV voltage protection level (Up).
• QuickSafe technology for dependable surge protection.
• Replaceable pluggable phase cartridges.
• Mechanical operating-status indication.
• IP20 degree of protection.
• Operating temperature range from -40 to +80 °C.
• DIN-rail mounting with a compact 53.4 mm width.

Reliable QuickSafe Surge Protection for Three-Phase Systems

Type 2 surge protective devices are designed to divert transient surge currents generated by indirect lightning effects and switching operations while limiting the overvoltage reaching downstream electrical and electronic equipment. Their ability to safely discharge current characterised by an 8/20 µs waveform makes them an important protection component within low-voltage distribution systems.

The ABB OVR T2 3L 40-440 P QS combines 40 kA maximum discharge capability, 20 kA nominal discharge current and a 1.8 kV protection level with three-pole QuickSafe construction. Replaceable cartridges and mechanical status indication simplify maintenance while its compact format makes efficient use of DIN-rail space in industrial and commercial electrical equipment.

Typical Applications

• Three-phase low-voltage electrical distribution systems.
• TN-C 400 V network installations.
• Industrial distribution boards and switchboards.
• Machinery and automation control panels.
• Commercial building electrical systems.
• Manufacturing and process-control installations.
• Protection of sensitive electrical and electronic equipment.
• Electrical panels requiring compact three-pole Type 2 surge protection.