Surge Arrestor 80kA, 2-4 Pole, 385V | Onesto SPD MC3 contactor subject to correct use and

subject to correct use and warranty terms

5 x HDPE fittings

Available in two sizes to match different ceiling grid modules

Rural and off-grid sewage treatment where municipal reticulation is not available

Trip and Reset Timing conditions

Surge Arrestor 80kA, 2-4 Pole, 385V | Onesto SPD MC3 contactor subject to correct use andThe Onesto BY7 80 Surge Protection Device is a Class II (Type 2) surge arrestor rated at 80kA, designed to protect electrical installations, distribution boards and connected equipment from transient overvoltage caused by lightning strikes and switching surges. It is suitable for commercial and industrial TN and TT power supply networks with a higher lightning exposure risk, and offers a visual pass fail status indicator so installers and maintenance