ABB Surge Protector (Surge protection Device) is a device indispensable lightning protection of electronic equipment, in the past often called "lightning" or "over-voltage protection," the English abbreviation for the SPD. Even a small surge or peak voltage can ultimately destroy or affect the performance of expensive electronic equipment such as computers, phones, fax, television, audio / video equipment and other household appliances and tools. The increasingly widespread use of computer chips need surge protection because these chips often are very sensitive to voltage fluctuations. The ABB power surge protector like a sponge, capable of absorbing the extra voltage dangerous to prevent most of these voltages into your sensitive equipment. OVR BT2 surge protector, lightning surge currents generated in low-voltage distribution systems and data transmission network will produce over-voltage, ABB OVR complete series surge protector can be safely lightning current into the ground and too restrictive Voltage. OVR has a compact and simple wiring advantages, modular design, OVR has a safety margin protection, working status indicator and remote signaling contacts, allowing users to get a more reliable protection. ABB OVR surge protector includes OVR T1, OVR T1 + 2, OVR BT2, OVR TC and OVR Telecom (communications), OVR PV (photovoltaic), OVR WT (wind) and other products can be widely used in construction, fields transmission and distribution, industrial, communications, new energy, transportation and so on.