HSN 1-phase and HTN 3-phase

The HSN and HTN series voltage transformers are fully housed, thus providing protection from physical accidents, and other hazards. Generally they are used wherever adjustable AC voltage is required. Output voltage is precisely controlled. 

Output voltage is controlled with a large, slip-protected knob. Output voltage is increased linearly as the knob is turned clockwise. All models are equipped with power cord, illuminated on/off switch and external PE terminal and optional with appropriate plug connector. They are marked with output voltage in volts (corresponding to nominal input voltage).
They can be conveniently moved around laboratory, production or equipment service area to provide adjustable voltage.
All models are suitable for 50 Hz / 400 Hz frequency range. Single- and three-phase models are available with various current ratings.

Technical specification

1-phase HSN 260
Input 230 V
Output 0 V ... 260 V
Current 4,5 A ... 30 A
Power 1170 VA ... 7800 VA
3-phase HTN 450
Input 400 V
Output 0 V ... 450 V
Current* 8 A ... 30 A
Power 6240 VA ... 23400 VA

 * Maximum current range depends on model type