1.  Features

① The fully-encapsulated printed circuit board can be directly welded and assembled, and has a perfect outline.

② It has a low mounting height, compact structure, and is solid, vibration-proof, moisture-proof, flame-resistant, and has high insulation withstand voltages.;

③ It is easy to use and reconfigure, and alternative input/output voltages can be obtained by changing the connections of the primary and/or secondary. 

④ It has a built-in temperature protector, making it safer to use.

2.  Ambient Conditions

① Temperature: -25℃～+70℃;

② Relative humidity: ≤90% at 40℃;

③ Atmospheric pressure: 860～1060mbar (650～800mmHg approximately).

3.  Insulation Rating: Class F (155℃)

4.  Safety Features

① Dielectric resistance: >1000MΩ in normal condition;

② Insulation withstand voltages: 3750 V (50HZ)/1 min;

③ Insulation impact strength: Continuously 20 times impact of 6KV(50HZ)/50μS;

④ Fire retardancy: In conformity with UL94-Vo.

5. Safety approval: 

6.  Rated Power   3VA, 6VA, 9VA, 10VA, 20VA, 30VA, 40VA

7.  Rated Voltage

① Standard series：

Primary：2×110V±15%-20%    50Hz/60Hz

Secondary：2×6V, 2×7.5V, 2×9V, 2×12V, 2×15V, 2×18V, 2×21V, 2×24V, 2×27V

② Non-standard series: It can be customized based on customer's requirements.

8. Universal Technical Parameters of SL Series Standard Product