Description ABB 100kA AC SPD (surge protection device) suitable for the 50Hz and 60Hz AC power supply system. It prevents your solar devices and appliances against high voltage. All the cartridges are pluggable and replaceable. So, you can replace the cartridge instead changing the entire SPD its when needed. OVR BT2 SPD is build with the high quality material. It response within <25ns (nano seconds) if there will be any disturbance in power supply. It cantains green and red indicators for your better understanding. The green light is for satisfactory operations while the red indicates the time to replace the cartridge. This AC SPD device require proper earthing to function properly. It will send the extra or high voltage to the earthing and protects your appliances, and your solar systems.
