13.4 Factory settings and measured values
Appendix
5284 / 08/2023 enBENNING ST 755+ / ST 760+112
Parameter Value
Measuring range 0.05... 10Ω
Resolution 0.001Ω
Accuracy ±15% of the measured value
Table47: Measured values according to measuring specifications– Protective conductor resistance tests
13.4.2 Factory settings and measured values– Insulating
resistance tests
Test Value Unit
R
Insu-1
VDE0701/0702, ClassI, LN to PE 1.00 MΩ
R
Insu-1
VDE0701/0702, ClassII, LN to test body 2.00 MΩ
R
Insu-1
VDE0701/0702, ClassIII, input to test body 0.25 MΩ
R
Insu-1
VDE0751-1, ClassI, LN to PE 2.00 MΩ
R
Insu-1
VDE0751-1, ClassII, LN to test body 7.00 MΩ
R
Insu-1
VDE0544-4, ClassI, LN to PE 2.50 MΩ
R
Insu-1
VDE0544-4, ClassII, LN to test body 5.00 MΩ
R
Insu-2
VDE0701/0702, ClassI, secondary to PE 0.25 MΩ
R
Insu-2
VDE0701/0702, ClassII, secondary to test
body
0.25 MΩ
R
Insu-2
VDE0701/0702, ClassIII, output to test body 0.25 MΩ
R
Insu-2
VDE0751-1, ClassI, secondary to PE 70.00 MΩ
R
Insu-2
VDE0751-1, ClassII, secondary to test body 70.00 MΩ
R
Insu-2
VDE0544-4, ClassI, secondary to PE 2.50 MΩ
R
Insu-2
VDE0544-4, ClassII, secondary to test body 2.50 MΩ
R
Insu-3
VDE0701/0702, ClassI, LN to secondary 2.00 MΩ
R
Insu-3
VDE0701/0702, ClassII, LN to secondary 2.00 MΩ
R
Insu-3
VDE0701/0702, ClassIII, input to output 0.25 MΩ
R
Insu-3
VDE0751-1, ClassI, LN to secondary, typeB 2.00 MΩ
R
Insu-3
VDE0751-1, ClassI, LN to secondary, typeBF 70.00 MΩ
R
Insu-3
VDE0751-1, ClassI, LN to secondary, typeCF 70.00 MΩ
R
Insu-3
VDE0751-1, ClassII, LN to secondary, typeB 7.00 MΩ
R
Insu-3
VDE0751-1, ClassII, LN to secondary, typeBF 70.00 MΩ
R
Insu-3
VDE0751-1, ClassII, LN to secondary, typeCF 70.00 MΩ
R
Insu-3
VDE0544-4, ClassI, LN to secondary 5.00 MΩ
R
Insu-3
VDE0544-4, ClassII, LN to secondary 5.00 MΩ
R
Insu-4
VDE0701-0702, ClassI, LN to access. parts
without PE
2.00 MΩ
R
Insu-4
VDE0751-1, ClassI, LN to access. parts
without PE
7.00 MΩ
R
Insu-4
VDE0544-4, ClassI, LN to access. parts
without PE
5.00 MΩ
Table48: Factory settings of the limits for insulating resistance tests
Parameter Value
Testing voltage 100...500V‑DC (-0%/ +25%) at a testing current of 0… 1mA
501... 1 000V‑DC (-12%/ +25%) at a testing current of 0… 1mA