Siemens SIVACON User Manual

Appendix
A
Connection cable cross section, HRC fuse rating
Recommendations to VDE 0100 f
or fusing and cable cross sections for three phase power
capacitors are listed below.
VDE 0100 recommendations
Cross-section values mentioned below are guideline values valid for operation under normal
conditions and at an ambient t
emperature of 40 °C. Higher values should be selected if
conditions di󹪜er from the norm, such as higher temperatures or harmonic distortion.
Kvar rating at 400 V
kvar
Nominal current
A
HRC fuse rating
A
Cross section of supply
cable
mm
2
5 7,2 16 1,5
6,3 9 16 2,5
7,5 10,8 20 2,5
8,3 12 20 2,5
10 14,4 25 4
12,5 18 35 4
15 21,6 35 6
20 29 50 10
25 36 63 16
30 43 80 25
40 58 100 35
50 72 125 35
56 kvar, 440 V 73,5 125 35
60 kvar, 440 V 78,7 160 35
Other voltage ratings
230 V table 󹪝gure x 1,74
440 V t
able 󹪝gure x 0,91
480 V table
󹪝gure x 0,83
525 V t
able 󹪝gure x 0,76
690 V table 󹪝gure x 0,58
800 V table 󹪝gure x 0,50
The internal wiring of a capacitor bank can be normally done with a lower cross section.
Various parameters such as temperature inside cabinet, quality of cable, maximum cable
isolation temperature, single or multicore cable and length of cable have to be taken into
consideration when selecting the appropriate value.
Installation and maintenance instructions for Power Factor Correction (PFC) capacitors
Installation Manual, 05/2022, L1V30884033A 31

Siemens SIVACON Specifications

General

Type	Low-voltage switchgear and controlgear assembly
Modular design	Yes
Form of internal separation	Up to Form 4b
Standards	IEC 61439-1/-2
Installation type	Fixed or withdrawable