Electrical Information

Table of Recommended Fuse Ratings, Feeder Cables & Earth Sizes

For 380 – 415 Volts 3phase / 50 Hz Supplies

Assumes wired in multi-core steel wire armour, PVC Insulated cable. Clipped direct to IEE 16th edition.

KW Rating	Full Package Amps	Rec. Mains Fuse Motor Rate (A)	Red. Feeder Cable mm²	Current Carrying Capacity of Mains (A)	Rec. Inductive Isolator Rating (A)
4	8	20	2.5	25	20
5.5	11	20	2.5	25	20
7.5	15	32	4	33	32
11	24.3	32	6	42	32
15	32.1	50	10	58	63
18.5	36.7	50	10	58	63
22	42.3	63	16	77	63
30	55.6	80	25	102	100
37	80	100	35	125	100
45	96	125	50	151	125
50	104.5	125	50	151	125
55	109	160	70	192	200
75	156	200	95	231	200
90	180.6	200	95	231	200
110	223	250	120	267	315
132	251	315	185	348	315
150	302	400	240	409	400

N.B. – Cable sizes are for guide only as current range can vary with cable length, ambient and working temperature

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