GSA 250 Earth fault

Current Transformer Earth fault

The GSA 250 is a cast-resin insulated current transformer for indoor applications. They are suitable for cables or bus-bars. The GSA 250 Earth-fault is dedicated to measure phase displacement of a current. Both fixed core transformers (GSA) and split-core transformers are available (GST/GSK).

Rated primary current:60A
Rated secondary current:1A
Rated output:As required. For example 1,2VA
ø 160GSA 250 Earth fault

General technical specifications

This product is designed to be safe under the following conditions:

Environmental conditions

LocationIndoor use
Ambient air temperature-5°C .. +40°C, other temperatures on request
Storage and transport temperature-25°C .. -50°C
Relative humidity5% .. 95%, non condensing
AltitudeMax. 1000m above NN; at >1000m data required
Protection degree (secondary terminal)IP20

Application conditions

StandardIEC 61869-2
Rated short-time thermal current (lth)20 kA / 1 s
RatedDynanimcCurentLdyn2,5 x Ith
Rated insulation level0,72/3/-kV
Rated frequency50/60Hz
Class of insulationE
Rated secondary current1A
Secondary terminalScrew terminals M5 (max. 2,5Nm)
Rated primary current60A
Accuracy class1,2VA - 1Fs10
GSA 250 Earth fault

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GSA 250 Earth fault

GSA 250 Earth fault