SA-01A supply sources are designed for the supply of voltage to voltage presence warning devices type DAPT and DAPT/BA. The SA-01A source is provided with a buffer accumulator which provides the supply of devices in case of outages of the mains supply (220 V / 50 Hz).
The sources provide the following indications:
| 
 Technical characteristics  | 
 Value  | 
| 
 Supply voltage  | 
 220 V±10%, 50 Hz  | 
| 
 Output voltage in the presence / absence of network voltage (V. c.c.)  | 
 13÷15  | 
| 
 Output voltage in the presence / absence of network voltage (A)  | 
 11÷12  | 
| 
 Output current (A)  | 
 max. 0,5  | 
| 
 No. of DAPT devices 6-35 kV supplied from a source SA-01A  | 
 max. 21  | 
| 
 Operating temperature range (°C)  | 
 -15 … +45  | 
| 
 Protection class provided by the housing  | 
 IP 20  | 
| 
 Overall size (mm)  | 
 290 x 260 x 130  | 
| 
 Weight (Kg)  | 
 5,9  |