| 6VA type | 12VA type | 25VA type | 50VA type | 100VA type | | Regulation typ. | 25% | 10% | 7% | 10% | 9% | | Dia. W x H x D (mm) | 45 x 37 x 38 | 55 x 42 x 46 | 68 x 58 x 59 | 63 x 65 x 78 | 65 x 75 x 89 | | Fixing centres (mm) | 54 | 68 | 83 | 92 | 57 x 44 | | Fixing hole dia. (mm) | 4 x 6 | 4 x 8 | 4 x 8 | 4 x 8 | 5 x 8 | | |
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