2CTB802342R0400 ABB OVR T2 1N 15-320 P U Type 2 Surge Protective Device

Why Choose the ABB OVR T2 1N 15-320 P U Surge Protective Device?

The ABB OVR T2 1N 15-320 P U, order code 2CTB802342R0400, is a pluggable Type 2 surge protective device (SPD) designed to protect low-voltage electrical installations and sensitive equipment against transient overvoltages caused by indirect lightning events and switching surges. Part of the ABB OVR surge protection range and ABB's Surge Protection Devices product group, it is specifically configured for single-phase electrical networks.

This SPD protects two lines and combines a MOV protection pole with a spark-gap neutral pole. It provides a maximum discharge current (Imax) of 15 kA, a nominal discharge current (In) of 5 kA and a voltage protection rating (VPR) of 1.2 kV, helping limit potentially damaging transient voltages before they reach downstream equipment.

Designed for 277 V AC single-phase systems, the OVR T2 1N 15-320 P U has a maximum continuous operating voltage (Uc) of 320 V. Its pluggable DIN-rail format supports straightforward installation and servicing in electrical distribution boards and control panels.

Key Advantages

• Dedicated Type 2 surge protective device for low-voltage electrical installations.
• 15 kA maximum discharge current (Imax) with an 8/20 µs waveform.
• 5 kA nominal discharge current (In) for transient surge protection.
• 1.2 kV voltage protection rating (VPR) helps protect sensitive downstream equipment.
• Designed for 277 V AC single-phase networks.
• 320 V maximum continuous operating voltage (Uc).
• Pluggable construction supports convenient installation and replacement.

Key Features

• ABB OVR Type 2 surge protection range.
• Type 2 pluggable surge protective device.
• Two protected lines.
• 15 kA Imax maximum discharge current.
• 5 kA In nominal discharge current.
• 277 V AC nominal system voltage.
• 320 V maximum continuous operating voltage.
• 1.2 kV voltage protection rating.
• Designed for single-phase, 3-wire systems.
• DIN-rail installation for electrical distribution equipment.

Reliable Type 2 Protection for Electrical Installations

Type 2 surge protective devices are used in low-voltage distribution systems to limit transient overvoltages that could otherwise damage electrical and electronic equipment. ABB OVR Type 2 devices are designed to safely discharge surge currents with an 8/20 µs waveform, reducing the voltage stress reaching connected equipment.

The OVR T2 1N configuration uses a MOV protection pole together with a spark-gap pole connected to neutral. The OVR T2 1N 15-320 P U combines this protection architecture with a compact pluggable format for 277 V AC single-phase installations, making it suitable for distribution equipment where dependable surge protection and straightforward servicing are required.

Typical Applications

• 277 V AC single-phase electrical distribution systems.
• Electrical distribution boards and panelboards.
• Industrial electrical control panels.
• Commercial building electrical installations.
• Protection of sensitive electrical and electronic equipment.
• Secondary protection against indirect lightning and switching surges.