Single Phase Transformers

Isolating Single Phase Transformers

Standard C.E.I. 14/8 issue 1162 IEC 726
TM-IS series includes single phase transformers in which the main and secondary windings are electrically separated by means of an electrostatic screen, with the aim of reducing the danger of an accidental contact between the earth and the parts under voltage or the metallic parts which can be put under voltage in presence of the insulation failure.
This transformers, up to 4kVA are built with "cloak" type nucleus (Fig.2). For higher power the transformers are built with "column" type nucleos as Fig.3
On request the dimensions can be varied according to available space.

Necessary data for quotation request or order:
a) power in V.A.
b) voltage and frequency of supply line;
c) secondary voltage
d) ambient temperature
e) working ambience.

Series production:
- Primary E: 230V - Secondary U 230V;
- Primary E: 400V - Secondary U 400V
- Insulation class: E
- Protection: IP00;
- Frequency: 50/60 Hz
- Open execution
- Electrical protection class I
- Impregnation with resin
- Tropicalised
- Full data always refer to the max secondary voltage

Wiring diagrams primary/secondary

**Isolating 1 Phase Transformers**
Code	Power VA	Prix (Euro)
TM-IS-189	25	11,67
TM-IS-108	30	14,31
TM-IS-190	40	15,47
TM-IS-109	50	16,62
TM-IS-191	63	20,42
TM-IS-110	75	24,25
TM-IS-111	100	28,30
TM-IS-112	150	30,61
TM-IS-192	160	34,41
TM-IS-113	200	47,53
TM-IS-114	250	52,05
TM-IS-115	300	60,76
TM-IS-116	400	73,85
TM-IS-117	500	107,83
TM-IS-118	600	139,60
TM-IS-193	630	167,54
TM-IS-119	750	195,10

**Isolating 1 Phase Transformers**
Code	Power VA	Prix (Euro)
TM-IS-120	1k	242,81
TM-IS-121	1,5k	296,23
TM-IS-194	1,6k	329,38
TM-IS-122	2k	387,53
TM-IS-123	2,5k	523,28
TM-IS-124	3k	758,90
TM-IS-125	4k	1.051,99
TM-IS-126	5k	167,54
TM-IS-127	6k	195,10
TM-IS-195	6,3k	242,81
TM-IS-128	7,5k	296,23
TM-IS-129	10k	329,38
TM-IS-196	15k	387,53
TM-IS-197	16k	523,28
TM-IS-198	20k	758,90
TM-IS-199	25k	1.051,99
-	-	-