General Specification

Double wound naturally air cooled varnish vacuum impregnated isolation transformer, with copper windings and copper earth screen between windings, Class “H” insulation with Class “B” temperature rise, low flux density, and reduced inrush current. Enclosed in a floor standing sheet steel case with terminal boxes each end suitable for bottom entry, indoor version powder coat paint finish, outdoor version galvanised. Transformer output to be fused with BS88 fuses and neutral link. Tested in accordance with BS EN 60076.

SINGLE PHASE 230V / 230V
KVA	Max Output Current	Output Fuse Fitted	Suggested Input Fuse Rating	Impedance Z%	Length(mm)	Depth (mm)	Height (mm)	Weight (KG)
5	21.7A	20A	40A	2.5	750	400	700	80
10	43.4A	63A	80A	2.4	750	430	700	160
15	65.2A	63A	100A	4.6	800	430	970	200
20	87A	80A	125A	5.4	900	500	950	270
25	108A	100A	200A	3.52	900	500	1025	293
THREE PHASE 415V / 415V
KVA	Max Output Current	Output Fuse Fitted	Suggested Input Fuse Rating	Impedance Z%	Length(mm)	Depth (mm)	Height (mm)	Weight (KG)	OUTDOOR UNIT
15	20.8A	20A	40A	2.5	725	400	825	170
25	34A	40A	63A	5.2	1025	430	970	290
30	42A	40A	63A	6.7	1250	550	1150	390
40	56A	63A	100A	5.31	1250	550	1150	450
50	69A	80A	125A	5.07	1250	550	1150	515
60	83A	100A	160A	4.8	1250	560	1150	550
75	104A	110A	200A	4.5	1250	580	1150	595
100	139A	150A	250A	5.3	1520	615	1300	750
150	208A	200A	355A	5.0	1520	615	1300	850	INDOOR UNIT

 Other KVA or fuse ratings can be accomodated

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