Transformer, two-stage (high / low) speed controller for single-phase (230 V, 50 Hz) motor in rotary devices (pumps, fans). It is used as a remote speed control in the motor with an external potential-free contact.

Technical data

• low / high gears
• housing made of impact-resistant and UV-resistant ABS plastic in light gray or of sheet steel
• surface mounting (degree of protection IP54)
• LEDs indicating power on and failure
• resume function after a power outage
• non-adjustable output (230 V / 2 A) for controlling an additional valve, indicator or damper actuator
• built-in thermal protection (TK)
• available voltage thresholds: low 80-100-120-150-170 V; high 120-150-170-190-230 V
• maximum working temperature 35 C