Speed controller for infinitely variable control of fans. Minimum speed adjustable. Can be used for surface and flush mounting, exception: STX 4 only for surface mounting. Operating principle: Phase-angle control. Recommended distance to radio and TV sets: 3 m. Switching on the fans to maximum speed by turning the control knob. Further turning reduces the speed. Splash-proof. Built-in temperature cut-off fuse. Orange LED operation indicator. CE marking. Including spare fuse. Additional switching contact (230 V), e.g. for controlling a damper. Due to the phase angle technology, a physically induced humming noise can occur in the lower speed range. In rooms where low-noise fan operation is required, use 5-step transformers TRE... for speed control. for speed control. Mounting on walls possible, avoid mounting on ceilings due to temperature development. STX 1.5, STX 2.5: width x height x depth when used for surface mounting: 82 mm x 89 mm x 69 mm, width x height x depth when used for flush mounting: 50 mm x 50 mm x 33 mm, STX 4: width x height x depth when used for surface mounting: 82 mm x 89 mm x 69 mmArticle: STX 1.5, voltage type: AC, rated voltage: 230 V, maximum load: 1.5 A, minimum load: 0.1 A, protection class: IP 44, mounting type: surface or flush mount, colour: white, similar to RAL 9010, weight: 0.1638 kg, weight with packaging: 0.196 kg, width: 82 mm, height: 89 mm, depth: 69 mm, width with packaging: 85 mm, height with packaging: 95 mm, Depth with packaging: 70 mm, Suitable for box fans: no, Suitable for roof fans: yes, Suitable for tube fans: yes, Suitable for heat recovery systems: no, Suitable for wall-mounted fans: yes, Suitable for wall-recessed fans: yes, Suitable for residential fans: yes, Suitable for centrifugal fans: no, Suitable for circulation fans: no
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