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

6 - 8

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5. 

 Because the controller enclosure is made of metal, it must be earthed and bonded 
to other existing metal surfaces. 

Fig. 1 Mounting dimensions 

Fig. 2 Mounting position

A

C

B

E

D

Article code

A

[mm]

B

[mm]

C

[mm]

D

[mm]

E

[mm]

STR-3-35L10

300

325

185

255

255

STR-3-50L10

300

325

185

255

255

STR-3-75L10

300

425

185

255

255

STR-3100L10

300

425

185

255

355

STR-3130L10

300

423

235

255

355

Correct

Incorrect

  50 mm

  50 mm

  75 mm

  50 mm

1

3

2

4

6. 

 Insert the cables through the cable glands and do the wiring according to the 
wiring diagram (see 

Fig. 3

) while adhering to the information from section 

“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 all motor drives.

 

The earth wire (green-yellow) of the electrical supply and of any equipment 
connected to the controller must be connected to the terminals marked as PE. 

 

Fig. 3 Wiring and connections

STR-3-35L10, STR-3-50L10, STR-3-75L10

R

S

T

N L1 U

V

W

3 x 230 VAC          230 VAC

*

STR-3100L10, STR-3130L10

Pe  R

S

T Pe  N L1 Pe  U

V

W

3 x 230  VAC                230 VAC 

*

* Do not connect N from the power supply network

.

ATTENTION

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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