Detail SIEMENS 3EK7 090-4CB4 ARRESTER
Arrester
The 3EK7 surge arrester from Siemens offers since 1999
superior protection against power surges for the equipment in electrical distribution systems with operating
voltages of up to 72.5 kV. Besides being highly resistant
to environmental pollution of all kinds, its performance
in dealing with earth faults and its excellent short-circuit
ratings are setting entirely new standards. The silicone
on the 3EK7 surge arrester refuses to allow any deposits
of pollution or films of moisture to form on it. Thus,
surface currents caused by pollution will virtually not
occur. The 3EK7 arrester is also very lightweight,
robust and durable, due to its special Cage Design™.
