METREL EurotestAT MI 3101, Instruction Manual

Page: 92 / 136

MI 3101 EurotestAT: Technical specifications
92
RCD test current selection (r.m.s. value calculated to 20ms) according to IEC 61009:
I

N × 1/2 I

N × 1 I

N × 2 I

N × 5 RCD I

I

N (mA) AC
A B AC A B AC A B AC A B AC A B
10 5 3.5 5 10 20 20 20 40 40 50 100 100
  
30 15 10.5 15 30 42 60 60 84 120 150 212 300
  
100 50 35 50 100 141 200 200 282 400 500 707 1000
  
300 150 105 150 300 424 600 600 848 n.a. 1500 n.a. n.a.
  
500 250 175 250 500 707 1000 1000 1410 n.a. 2500 n.a. n.a.
  
1000 500 350 500 1000 1410 n.a. 2000 n.a. n.a. n.a. n.a. n.a.   n.a.
n.a..................................................... not applicable
8.3.2 Contact voltage RCD-Uc
Measuring range according to EN61557 is 20.0 V

31.0V for limit contact voltage 25V
Measuring range according to EN61557 is 20.0 V

62.0V for limit contact voltage 50V
Measuring range (V) Resolution (V) Accuracy
0.0

19.9
0.1 (-0 % / +15 %) of reading ± 10 digits
20.0

99.9
(-0 % / +15 %) of reading
The accuracy is valid if mains voltage is stabile during the measurement and PE terminal
is free of interfering voltages.
Test current....................................... max. 0.5

I

N
Limit contact voltage ......................... 25 V, 50 V
Specified accuracy is valid for complete operating range.
8.3.3 Trip-out time
Complete measurement range corresponds to EN 61557 requirements.
Maximum measuring times set according to selected reference for RCD testing.
Measuring range (ms) Resolution (ms) Accuracy
0.0

40.0
0.1

1 ms
0.0

max. time *
0.1 
3 ms
* For max. time see normative references in
4.4.2
– this specification applies to max. time
>40 ms.
Test current....................................... ½

I

N
, I

N
, 2

I

N
, 5

I

N
5

I

N
is not available for I

N
=1000 mA (RCD types AC) or I

N

300 mA (RCD type A,B).
2

I

N
is not available for I

N
=1000 mA (RCD type A,B).
1

I

N
is not available I

N
=1000 mA (RCD Typ B).