The 1 AC Transformer is an A4 module that includes a single phase transformer with both primary and secondary sides are made of two identical separate windings.
- Primary rating (2 windings): 24 V AC, max. 5 A each winding
- Secondary rating (2 windings): 120 V AC, max. 1 A each winding
- Frequency: 50 Hz
- Nominal power: 240 VA
- Thermistor: 10 kΩ, type 2
- Dimensions (H x W x D): 297 x 133 x 140 mm
- Weight: 5.3 kg