ATM – SINGLE PHASE AUTOTRANSFORMERS from 0.1kVA to 5kVA
SINGLE PHASE AUTOTRANSFORMERS from 0.1kVA to 5kVA
AN-type air cooling, suitable for indoor installation.
Copper windings.
Single winding with intermediate taps, resin impregnated and tropicalized
The autotransformer has only one winding that works as a primary and secondary, so we have no galvanic insulation between input and output, but electric continuity.
Autotransformers are cost-effective machines the closer to 1 is the ratio of the minimum voltage to the maximum. In the convenience calculation, it is necessary to take into account the high performance and low operating losses in relation to a separation transformer of equal power.

![]() |
| power | part no. | dimensions mm. | weight | box | |||||
| VA | A | B | C | D | E | F | kg. | code | |
| 100 | ATM029 | 87 | 80 | 97 | 71 | 48 | 5 | 1.55 | MB01 |
| 200 | ATM059 | 87 | 90 | 97 | 71 | 63 | 5 | 2.05 | MB01 |
| 300 | ATM079 | 101 | 88 | 107 | 82 | 63 | 5 | 2.55 | MB02 |
| 500 | ATM119 | 125 | 109 | 131 | 99 | 81 | 6 | 4.50 | MB03 |
| 750 | ATM169 | 125 | 117 | 131 | 99 | 91 | 6 | 5.75 | MB03 |
| 1000 | ATM179 | 125 | 117 | 131 | 99 | 91 | 6 | 6.50 | MB03 |
| 1500 | ATM199 | 154 | 135 | 159 | 105 | 104 | 6 | 9.80 | MB04 |
| 2000 | ATM219 | 154 | 135 | 159 | 105 | 104 | 6 | 10.00 | MB04 |
| 3000 | ATM249 | 154 | 145 | 159 | 105 | 115 | 6 | 11.80 | MB04 |
| 4000 | ATM267 | 184 | 170 | 180 | 122 | 125 | 6 | 14.20 | MB05 |
| 5000 | ATM287 | 184 | 170 | 180 | 122 | 125 | 6 | 17.80 | MB05 |



