H. Östberg
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  6. Speed controller VRS 4.0

Speed controller VRS 4.0 Updated: 2025-04-04 Archived product

9500021 - VRS 4.0 I Recessed 9500018 - VRS 4.0 U Surface mounted

VRS for manual variable speed control of single-phase AC motors.
Minimum speed is set by means of a screw under the knob.
The controller is certified and approved as conforming to electrical safety and interference regulations on all markets.
Suitable for recessed as well as for surface mounting.