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MIW-STR-4-EN-000 - 09 / 08 / 2018
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PRODUCT DESCRIPTION
The STR-4 series of transformer fan speed controllers regulate the rotational speed
of three-phase voltage controllable motors by varying the output voltage. They are
equipped with auto-transformers and control the speed manually in five steps. The
used technology provides a regulated output voltage with a perfect sinusoidal shape.
ARTICLE CODES
Article code
Rated max. current [A]
STR-4-15L40
1,5
STR-4-25L40
2,5
STR-4-40L40
4,0
STR-4-60L40
6,0
STR-4-80L40
8,0
STR-4110L40
11,0
STR-4140L50
14,0
INTENDED AREA OF USE
■
Speed control of voltage controllable 400 VAC three-phase motors (pumps and
fans)
■
For indoor use only
TECHNICAL DATA
■
Supply voltage: 3x 400 VAC / 50—60 Hz
■
Maximum motor current (Imax): depends on the version (see article codes)
■
Unregulated output: 230 VAC
■
Wide power range
■
5-step rotary switch for manual control plus off-position
■
LED status indication
■
Enclosure: sheet steel (RAL 7035, polyester powder coating)
■
Protection standard: IP54 (according to EN 60529)
■
Operating ambient conditions:
►
Temperature: -20—35 °C
►
Rel. humidity: 5—95 % rH (non-condensing)
STANDARDS
■
Low Voltage Directive 2014/35/EC
EMC Directive 2014/30/EC: EN 61326
■
WEEE Directive 2012/19/EC
■
RoHs Directive 2011/65/EC
STANDARD 3-PHASE 400 VAC
TRANSFORMER CONTROLLER
STR-4
