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VRS speed controller (for AC motors)
VRS controllers regulate the speed of AC motor fans. The minimum speed is set by means of a screw under the knob. The controller is certified and approved as conforming to electrical safety on all markets. Suitable for surface mounting on the system.
MS EC speed controller (for EC motors)
Designed for manual speed control of EC motors. Stepless control, maximum and minimum values can be set by adjusting the screw under the knob. The controller is certified and approved for use on all markets. The controller has an IP 44 enclosure (wall surface mounting).
Pressure switch
Pressure switch monitors air handling units and it is designed primarily for monitoring fans and filters. Set ranges from 20–200 Pa and 50–500 Pa.
Pressure regulator
Pressure regulator with Modbus communication measures differential pressure and controls ventilation system via a 0–10 V signal. It is equipped with an alarm log, where alarms are recorded. There are two pressure regulators: Calair-PR 230 V, FKP-R.
VRTE transformer controller (for AC motors)
The sensor is for manual 5-step voltage control of single-phase motors with “0” position and for speed control. Adjustment with a knob, operation indicator light on the housing. The controller is enclosed in a durable PVC or steel housing.
VRDE transformer controller (for AC motors)
Manual 5-step transformer with “0” position. VRDE is designed for controlling 1-phase fans with thermal protection of windings. The adjustment is done with a potential switch.
VRTT transformer controller (for AC motors)
The sensor is for speed control in voltage controllable 3-phase motors. The transformer sensor is connected to the fan motor and cuts off voltage when the motor is overheated. The alarm can be reset when the motor has cooled down and the switch is in “0” position.
VRDT transformer sensor (for AC motors)
The sensor is designed for speed control of 3-phase fans. The transformer sensor is connected to the fan motor and cuts off voltage when the motor is overheated. The alarm can be reset when the motor has cooled down and the switch is in “0” position. VRDT is enclosed in a steel sheet housing.
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