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MIW-STR-3-EN-000 - 24 / 10 / 2018

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PRODUCT DESCRIPTION

The STR-3 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-3-35L10

3,5

STR-3-50L10

5,0

STR-3-75L10

7,5

STR-3100L10

10,0

STR-3130L10

13,0

INTENDED AREA OF USE

 

 Speed control of voltage controllable 230 VAC three phase motors 

 

For indoor use only

TECHNICAL DATA

 

 Supply voltage: 230 VAC / 50—60 Hz

 

Maximum motor current: 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 230 VAC 
TRANSFORMER CONTROLLER

STR-3

Summary of Contents for STR-3

Page 1: ...Mounting and operating instructions STANDARD 3 PHASE 230 VAC TRANSFORMER CONTROLLER STR 3 ...

Page 2: ...UTIONS 3 PRODUCT DESCRIPTION 4 ARTICLE CODES 4 INTENDED AREA OF USE 4 TECHNICAL DATA 4 STANDARDS 4 MOUNTING INSTRUCTIONS IN STEPS 5 VERIFICATION OF INSTALLATION 7 TRANSPORT AND STORAGE 8 WARRANTY AND RESTRICTIONS 8 MAINTENANCE 8 STANDARD 3 PHASE 230 VAC TRANSFORMER CONTROLLER STR 3 ...

Page 3: ...s as dry as possible avoid condensation All installations shall comply with local health and safety regulations and local electrical standards and approved codes This product can only be installed by an engineer or a technician who has expert knowledge of the product and safety precautions Avoid contacts with energised electrical parts Always disconnect the power supply before connecting servicing...

Page 4: ... 10 0 STR 3130L10 13 0 INTENDED AREA OF USE Speed control of voltage controllable 230 VAC three phase motors For indoor use only TECHNICAL DATA Supply voltage 230 VAC 50 60 Hz Maximum motor current 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 polyes...

Page 5: ...Mind the correct mounting position and unit mounting dimensions see Fig 1 Mounting dimensions and Fig 2 Mounting position 3 Pay attention to following instructions in order to minimize the operating temperature 3 1 Respect the distances both between the wall ceiling and the device and between two devices as shown in Fig 2 In order to ensure sufficient ventilation of the controller clearance on eve...

Page 6: ...tion Wiring and connections above 6 1 Connect the power supply lines terminals R S T and PE 6 2 Connect the motor s terminals U V W and PE 6 3 If applicable connect the unregulated output L1 and N It can be used to supply a 230 VAC valve lamp etc when the knob is not at 0 position see Table 1 below ATTENTION A safety isolator disconnect switch should be installed on the mains electricity side of a...

Page 7: ...FICATION OF INSTALLATION ATTENTION Use only tools and equipment with non conducting handles when working on electrical devices After connecting the unit to the mains supply the green LED on its cover should light up indicating that the controller is supplied Safe operation depends on proper installation Before start up ensure the following The mains supply is connected correctly Protection is prov...

Page 8: ...lterations to the product after the date of publication relieve the manufacturer of any responsibilities The manufacturer bears no responsibility for any misprints or mistakes in this data MAINTENANCE In normal conditions this product is maintenance free If soiled clean with a dry or damp cloth In case of heavy pollution clean with a non aggressive product In these circumstances the unit should be...

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