Cable cross section/ HRC fuse sizes

Connection cable cross section and HRC fuse sizes

Power kvar	Nom. current A	Cable cross section NYY-J mm²	HRC fuses in Ampere
5	7	4x2,5	16
7,5	10	4x4	20
10	14	4x4	25
12,5	18	4x6	35
15	22	4x6	35
17,5	25	4x10	50
20	29	4x10	50
25	36	4x16	63
30	43	4x16	80
37,5	54	4x25	100
50	72	3x35/16	125
55 – 65	79 – 94	3x35/16	160
70 – 85	101 - 123	3x70/35	200
86 – 100	124 - 145	3x95/50	250
101 – 125	146 - 181	3x120/70	250
126 – 160	182 - 231	2” 3x70/35	315
161 – 180	233 - 260	2” 3x95/50	400
181 – 200	261 - 289	2” 3x120/70	400
201 – 250	290 - 361	2” 3x150/70	500
251 – 300	362 - 434	2” 3x185/95	630
Connection diameters are only valid for the given capacitor power levels

PFC systems with a power level of more than 300 kvar have 2 separate bus bar systems and require 2 separate feeders. The table applies to conventional or de-tuned PFC systems. The actual valid regulations (e.g. DIN VDE 0298) must always be observed.

Important note: the bus bar separation must be allocated before extending any existing systems!