H. Östberg
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  5. VRDE Transformer controller

VRDE Transformer controller

VRDE for AC motors. A manual 5-step transformer controller with 0-position and high/low speed switch for speed control of voltage controllable single-phase motors.
Changeover is done with a potential switch e.g. timer, thermostat or humidistat.
Enclosed in a durable PVC or steel housing.