• Hand control of the speed of motors

• Supply:400 Vac - 50/60 Hz - from 1,5 up to 18 A
• Enclosure: sheet steel, IP54
• Cam switch: 5 positions and Off-position
• Several voltage ranges possible
• Indicator lamp.
• 230 Vac, unregulated output
• Ready mounted cable glands
• Maximal ambient temperature: 35 °C
• The BTRN-4 transformer speed controllers are based on the principle of voltage control with auto-transformers.  They are applicable to voltage-controllable motors (400 Vac, 50/60 Hz) to control in 5 steps the rotational speed (of fans, pumps, etc.).

BTRN-4-11

BTRN: trans type

4: 400Vac 3ph

11: max. current