Figure 2.1:
Category indication according to IEC 61010
-
2
-
030:2010
Example:
A measurement device is specified as 600 V CAT II, maximum input
voltage 1000 V DC.
Table 2.1: Insulation test voltages according to IEC 61010
-
2
-
030:2010
Nominal Voltage
(V RMS or V DC)
IEC 61010
-
2
-
030:2010
5 sec. AC test (V RMS)
Impulse test (V)
CAT II
CAT III
CAT IV CAT II
CAT III
CAT IV
≤ 150
840
1.390
2.210
1.550
2.500
4.000
> 150
≤
300
1.390
2.210
3.310
2.500
4.000
6.000
> 300
≤
600
2.210
3.310
4.260
4.000
6.000
8.000
> 600
≤
1 000
3.310
4.260
6.600
6.000
8.000
12.000
Using the above table one can deduct that this specification informs the user
the device passed the insulation tests; 5 sec at 2.210 V RMS and impulse
4.000 V. The maximum operating input voltage is 1000 V DC. This device is to
be used to measure CAT II circuitry up to 600 V.
WARNING
Measurement inputs of this instrument should not be used to measure
high
-
energy signals of measurement categories CAT II, CAT III or
CAT IV (IEC 61010
-
2
-
30:2010) (e.g. mains measurements) , unless
specifically stated for the specific input.
ISOBE5600
18
I2716-4.0 en
