2CTB803873R5600 ABB OVR T2 4L 40-275 P QS Type 2 Surge Protective Device

Why Choose the ABB OVR T2 4L 40-275 P QS Surge Protective Device?

The ABB OVR T2 4L 40-275 P QS is a four-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 specifically configured for 230/400 V AC TN-S systems and provides coordinated protection across four conductors.

The OVR T2 4L 40-275 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. Its 275 V AC maximum continuous operating voltage (Uc) and 1.25 kV voltage protection level (Up) provide effective transient overvoltage protection for compatible low-voltage distribution systems.

Its pluggable QuickSafe construction allows protection cartridges to be replaced without changing the complete SPD base, helping simplify maintenance. Visual end-of-life indication provides straightforward local status checking, while its compact four-module DIN-rail format makes the device suitable for main and sub-distribution boards in residential, commercial and industrial installations.

Key Advantages

• Type 2 surge protection for low-voltage AC distribution systems.
• Four protected lines for 230/400 V AC TN-S installations.
• 40 kA maximum discharge current (Imax) for robust transient surge handling.
• 20 kA nominal discharge current (In) using an 8/20 µs waveform.
• 275 V AC maximum continuous operating voltage (Uc).
• 1.25 kV voltage protection level (Up) helps limit transient voltage reaching downstream equipment.
• QuickSafe technology provides dependable end-of-life indication and disconnection.
• Pluggable protection cartridges simplify servicing and replacement.
• Backup protection capability up to 125 A.
• Compact four-module DIN-rail construction simplifies panel integration.

Key Features

• ABB OVR Type 2 QuickSafe surge protective device.
• Four-pole / four-line configuration.
• Designed for 230/400 V AC TN-S networks.
• 40 kA Imax maximum discharge current.
• 20 kA In nominal discharge current.
• 275 V AC Uc maximum continuous operating voltage.
• 1.25 kV voltage protection level (Up).
• Varistor-based surge protection technology.
• QuickSafe end-of-life indication.
• Replaceable pluggable protection cartridges.
• Visual status indication for local inspection.
• IP20 degree of protection.
• Operating temperature range from -40 to +80 °C.
• DIN-rail mounting with a four-module format.

Reliable QuickSafe Surge Protection for 230/400 V TN-S Systems

Type 2 surge protective devices are designed to discharge surge currents generated by indirect lightning effects and switching operations while limiting the transient overvoltage reaching downstream electrical and electronic equipment. They are commonly installed in main and sub-distribution boards as part of a coordinated surge protection system.

The ABB OVR T2 4L 40-275 P QS combines 40 kA maximum discharge capability, 20 kA nominal discharge current and a low 1.25 kV protection level with four-line QuickSafe construction. Its replaceable cartridges and visual status indication support efficient maintenance, while the DIN-rail format provides straightforward integration into 230/400 V AC TN-S distribution systems.

Typical Applications

• 230/400 V AC TN-S electrical systems.
• Main electrical distribution boards.
• Sub-distribution boards.
• Industrial switchboards and control panels.
• Commercial building electrical installations.
• Residential electrical distribution systems.
• Machinery and automation installations.
• Protection of sensitive electrical and electronic equipment.
• Installations requiring four-line Type 2 surge protection.