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MIW-STR-4-EN-000 - 09 / 08 / 2018

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SAFETY AND PRECAUTIONS

Read all the information, the datasheet, mounting and operating instructions and 
study the wiring and connection diagram before working with the product. For 
personal and equipment safety, and for optimum product performance, make sure you 
entirely understand the contents before installing, using, or maintaining this product.

For safety and licensing (CE) reasons, unauthorised conversion and / or modifications 
of the product are inadmissible.

The product should not be exposed to abnormal conditions, such as: extreme 
temperatures, direct sunlight or vibrations. Long-term exposure to chemical 
vapours in high concentration can affect the product performance. Make sure the 
work environment is 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 or repairing the product.

Always verify that you apply appropriate power supply to the product and use 
appropriate wire size and characteristics. Make sure that all the screws and nuts 
are well tightened and fuses (if any) are fitted well.

Recycling of equipment and packaging should be taken into consideration and these 
should be disposed of in accordance with local and national legislation / regulations.

In case there are any questions that are not answered, please contact your 
technical support or consult a professional.

 

 

STANDARD 3-PHASE 400 VAC 
TRANSFORMER CONTROLLER

STR-4

Summary of Contents for STR-4 series

Page 1: ...Mounting and operating instructions STANDARD 3 PHASE 400 VAC TRANSFORMER CONTROLLER STR 4 ...

Page 2: ...ARTICLE CODES 4 INTENDED AREA OF USE 4 TECHNICAL DATA 4 STANDARDS 4 OPERATIONAL DIAGRAMS 5 WIRING AND CONNECTIONS 5 MOUNTING AND OPERATING INSTRUCTIONS IN STEPS 5 VERIFICATION OF INSTALLATION 8 TRANSPORT AND STORAGE 8 WARRANTY AND RESTRICTIONS 8 MAINTENANCE 8 STANDARD 3 PHASE 400 VAC TRANSFORMER CONTROLLER STR 4 ...

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: ...10L40 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...

Page 5: ...W ATTENTION Make sure you use cables with an appropriate diameter MOUNTING AND OPERATING INSTRUCTIONS IN STEPS Before you start mounting the STR 4 read carefully Safety and Precautions and follow these steps Choose a smooth solid surface for installation a wall panel etc Follow these steps 1 Open the door of the controller Mind the wires that connect the rotary switch with the autotransformer 2 Mo...

Page 6: ... and bonded to other existing metal surfaces Fig 1 Mounting dimensions Fig 2 Mounting position A C B E D Correct Incorrect 50 mm 50 mm 75 mm 50 mm 1 3 2 4 Article code A mm B mm C mm D mm E mm STR 4 15L40 300 325 185 255 255 STR 4 25L40 300 325 185 255 255 STR 4 40L40 300 425 185 255 355 STR 4 60L40 300 425 235 255 355 STR 4 80L40 300 425 235 255 355 STR 4110L40 400 430 235 355 355 STR 4140L50 400...

Page 7: ...rmer controller can operate normally consider an isolating switch 12 Turn the knob into the relevant position to adjust the output voltage Optional settings The standard configuration of the output voltages is as indicated in Table 1 below However if more than 5 output voltages are available it is possible to adjust the 5 steps by changing the internal wiring Table 1 Voltage series Knob position 0...

Page 8: ...ersonal injury or threat to health Take the relevant safety measures ATTENTION Disconnect and confirm that there is no live current flowing to the unit before servicing ATTENTION Avoid exposing the controller to direct sunlight TRANSPORT AND STORAGE Avoid shocks and extreme conditions stock in original packing WARRANTY AND RESTRICTIONS Two years from the delivery date against defects in manufactur...

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