Harmann - automation - transformer speed regulator SC2A 4

Transformer, two-stage (high / low) speed controller for three-phase (3 ~ 400 V, 50 Hz) motor in rotary devices (pumps, fans). It provides remote two-stage speed regulation in the motor via an external potential-free contact.

Technical data

• steel sheet housing
• low / high gears
• LEDs indicating power on and failure
• built-in thermal protection (TK)
• resume function after a power outage
• 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
• low and high gear voltages defined manually by means of the switch in
• degree of protection IP54 (surface mounting)
• available voltage thresholds: low 130-170-210-250-290 V; high 210-250-290-330-400 V
• maximum working temperature 35 C