2CTB804200R1100 ABB OVR T2 20-275 Type 2 Surge Protective Device x20 Pack

Why Choose the ABB OVR T2 20-275 Surge Protective Device?

The ABB OVR T2 20-275, order code 2CTB804200R1100, is a compact Type 2 surge protective device (SPD) designed to protect low-voltage electrical installations and connected equipment against transient overvoltages caused by indirect lightning effects and electrical switching events. This order code identifies ABB's x20 multipack of the OVR T2 20-275, providing 20 individual SPDs for larger installations, panel-building projects and stock requirements.

Each OVR T2 20-275 is a single-pole, non-pluggable Type 2 SPD with a maximum discharge current of 20 kA and a nominal discharge current of 5 kA using the standard 8/20 µs surge waveform. Its voltage protection level of 1.0 kV helps limit transient voltage reaching downstream electrical and electronic equipment.

With a nominal voltage of 230 V AC and maximum continuous operating voltage of 275 V AC, the OVR T2 20-275 is suitable for common low-voltage distribution applications. Each device occupies only 17.8 mm of DIN-rail width and weighs approximately 0.12 kg, providing a space-efficient surge protection solution for distribution boards and control panels.

Key Advantages

• Supplied as an x20 pack containing 20 OVR T2 20-275 devices.
• Reliable Type 2 protection against transient overvoltages.
• 20 kA maximum discharge current using an 8/20 µs waveform.
• 5 kA nominal discharge current for effective surge suppression.
• Low 1.0 kV voltage protection level helps protect sensitive equipment.
• 275 V AC maximum continuous operating voltage.
• Compact 17.8 mm single-module width saves distribution-board space.
• Non-pluggable construction provides a simple integrated surge protection solution.

Key Features

• ABB OVR Type 2 series.
• Type 2 surge protective device.
• 20-piece multipack under ABB order code 2CTB804200R1100.
• Single protected line per device.
• 20 kA maximum discharge current Imax.
• 5 kA nominal discharge current In.
• 1.0 kV voltage protection level Up.
• 230 V AC nominal voltage Un.
• 275 V AC maximum continuous operating voltage Uc.
• Designed for surge currents with an 8/20 µs waveform.
• Compact non-pluggable construction.
• DIN-rail mounting for modular electrical distribution equipment.

Reliable Type 2 Surge Protection for Electrical Installations

Type 2 surge protective devices are installed in low-voltage distribution systems to limit transient overvoltages before they can damage connected equipment. Each ABB OVR T2 20-275 in this multipack provides an effective discharge path for surge currents characterised by an 8/20 µs waveform, helping protect downstream electrical and electronic loads.

The combination of a 20 kA maximum discharge current, 1.0 kV protection level and compact single-pole DIN-rail construction makes the OVR T2 20-275 suitable for coordinated surge protection in distribution boards and control panels. The 20-piece packaging is particularly convenient for panel builders, contractors and projects requiring multiple identical SPDs.

Typical Applications

• Low-voltage electrical distribution boards.
• Residential and commercial electrical installations.
• Industrial electrical and control panels.
• Protection of sensitive electronic equipment.
• Building automation and control systems.
• Electrical panel-building and OEM projects.
• Multi-panel installations requiring multiple identical Type 2 SPDs.