Harmann - automation - transformer speed regulator STVS 4

Five-stage transformer speed regulator for three-phase (3 ~ 400 V, 50 Hz) motor in rotary devices (pumps, fans). It is used as a remote speed control in the motor by gradually changing the supply voltage.

Technical data

• housing made of painted steel sheet
• built-in thermal protection
• degree of protection IP54 (surface mounting)
• LEDs indicating voltage connection and alarm
• non-adjustable output (230 V / 2 A) for controlling an additional valve, indicator or damper actuator
• two pairs of terminal in (OC, CC) for connecting external contacts in potential-free to stop and resume motor operation
• input for connecting motor thermal contact
• +12 VDC terminal for supplying an external potentiometer
• control signal input V / C-GND
• 0-2-4-6-8-9.5 VDC input signal
• available work stages (output) 0-130-180-230-300-400 V
• maximum working temperature 35 C