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f) Testing 30 mA residual current circuit breakers RCCBs/RCDs
• The GT-6000 enables the measurement of the tripping time of permanently installed RCCBs/RCDs and portable
RCCBs/PRCDs with a rated residual current of 30 mA. The tripping time of the single rated fault current (initial
polarity 0°/180°) and the five-fold rated fault current (initial polarity 0°/180°) is measured in the automatic test
sequence.
• Generating a fault current of 30 mA proves that the RCCB/RCD triggers when the rated fault current is reached.
If the maximum contact voltage limit value of 50 V is exceeded, the symbol “UB > 50 V” appears on the display
and the test is stopped.
Before testing a RCCB/RCD, the 4 mm safety plug on the test cable must be removed from the test
socket (9).
The measurement can be influenced by the following events:
- A voltage between the protective conductor of the earthed socket and earth
- Leakage currents in the circuit downstream of the RCCB/RCD
- Other earthing equipment
- Devices that are switched downstream of the RCCB/RCD circuit breaker and that cause a longer
tripping time, e.g. capacitors or rotating machines.
Summary of Contents for 2238757
Page 9: ...9 6 Einzelteilbezeichnung IPE IB 250 V 500 V RCD Phase 3 12 8 ...
Page 44: ...44 6 Overview of parts IPE IB 250 V 500 V RCD Phase 3 12 8 ...
Page 79: ...79 6 Désignation des pièces détachées IPE IB 250 V 500 V RCD Phase 3 12 8 ...
Page 115: ...115 6 Overzicht van de onderdelen IPE IB 250 V 500 V RCD Phase 3 12 8 ...
Page 143: ...143 ...
