The STRS1 series of transformer fan speed controllers regulate the rotational speed of single-phase voltage controllable motors by varying the output voltage. They are equipped with auto-transformer(s), control the speed manually in five steps and feature TK monitoring for thermal motor protection. The used technology provides a regulated output voltage with a perfect sinusoidal shape. The controllers up to 7,5 A are available in plastic enclosure, while the models above 7,5 A are available in a metal enclosure.

Supply: 230 VAC / 50—60 Hz

Unregulated output: 230 VAC, 2 A

Protection standard: IP54 

Temperature: -20—35 °C

Rel. humidity: 5—95 % rH

Rated max. current (A): 20

Fuse (5*20 mm): F: T-30,0  A-H

I (A): 20

DIMENSIONS (mm):

A=300

B=430

C=235

D=255

E=355

FEATURES

 Wide power range: 0,8 A—20 A 

 5-step rotary switch for manual control plus off-position

LED status indication