Description
2.8 Electronic trip unit
3VA molded case circuit breakers with IEC certificate
104
Manual, 03/2019, A5E03603177010-03
Accuracy levels of the specified measured values of the 8-series ETU, including the
integrated current sensors
I
b
is the maximum current in the relevant size. Example: 3VA21
→ I
b
= 160 A
U
n
refers to the nominal voltage of the metering function, between phase and neutral
All specified accuracies refer to an ambient temperature of 23 °C ± 2 °C
Interpretation of measured values
PF
Power factor
Measured current and voltage values are always positive.
