MPI-520 – USER MANUAL
Nominal working voltage U
n
: 110 V, 115 V, 127 V, 220 V, 230 V, 240 V
Working range of voltage: 95…270 V
Nominal network frequency f
n
: 50 Hz, 60 Hz
Working range of frequency: 45…65 Hz
RCD trigger and response time test t
A
(for t
A
mode).
Test range according to IEC 61557: 0 ms ... to the upper limit of displayed value
Multiplication
factor setting
Standard and
short-time delay
1)
for I
n
= 10 mA and 0,5 I
n
uncertainty is ± 2% w.m. ±3 digits
Accuracy of differential current setting:
for 1*I
n
, 2*I
n
and 5*I
n
..................................................................... 0..8%
for 0,5*I
n
.................................................................................... –8..0%
Effective value of forced leakage current at measurement of RCD disconnection time
Multiplication factor setting
Multiplication factor setting
* - does not apply to U
n
= 110 V, 115 V and 127