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Type 1 surge arrester / DIN rail - 5 - 150 KA, 275 - 440 V | CCS01
The surge arrestor is made up of a semi-conductor valve element that only opens at specific conditions. It has a relatively high resistance between the protected conductors and earthing circuit under normal conditions. Voltage increase due to pneumatic environments or system crash, the valve element opens and directs the excess voltage to the grounded circuit. After reversion of the normal voltage the valve element closes. It is also is capable of enduring high overloading in a short amount of time.