The OVR NE12 is a multistage protector with fast acting varistor (MOV) and EMI/RFI noise attentuation filter to limit overvoltage to values compatible with the sensitive equipment connected to the network. In addition to the OVER NE12, ABB recommends adding OVR DIN rail SPDs at branch panels and equipment, creating a multi-level approach to protection.


The OVR NE12 is a Type 2 Surge Protective Device and features a NEMA 12 enclosure, 160 or 320kA per phase protection and replaceable MOV blocks. The devices are suitable for protection for all manner of facilities and operations including critical power, water/wastewater, renewable energy, communications, manufacturing and commercial.