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Summary of Contents for Sentera Controls SC2A4
- Page 1 SC2A4 THREE PHASE 400 VAC TWO-SPEED TRANSFORMER CONTROLLER WITH TK AND START / STOP Mounting and operating instructions...
- Page 2 PRODUCT DESCRIPTION ARTICLE CODES INTENDED AREA OF USE TECHNICAL DATA STANDARDS OPERATIONAL DIAGRAM WIRING AND CONNECTIONS MOUNTING INSTRUCTIONS IN STEPS VERIFICATION OF INSTALLATION TRANSPORT AND STORAGE WARRANTY AND RESTRICTIONS MAINTENANCE MIW-SC2A4-EN-000 - 22 / 02 / 2021 2 - 8 www.sentera.eu...
- Page 3 In case there are any questions that are not answered, please contact our technical support or consult a professional. MIW-SC2A4-EN-000 - 22 / 02 / 2021 3 - 8 www.sentera.eu...
- Page 4 CONTROLLER WITH TK AND START / STOP PRODUCT DESCRIPTION The SC2A4 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 controller makes it possible to select two optimal motor speeds and to switch these by a contact (e.g.
- Page 5 Normally closed contact for switching between high and low speed (e.g. via an external clock) ATTENTION Make sure you use cables with an appropriate diameter. MIW-SC2A4-EN-000 - 22 / 02 / 2021 5 - 8 www.sentera.eu back to the table of contents...
- Page 6 Connect the CL normally closed contact for external clock (for switching between high and low speed). As standard, there is a bridge between the CL terminals. MIW-SC2A4-EN-000 - 22 / 02 / 2021 6 - 8 www.sentera.eu back to the table of contents...
- Page 7 Unregulated output [VAC] *If input CL is closed, the high speed selection is activated. If input CL is open, the low speed selection is activated. MIW-SC2A4-EN-000 - 22 / 02 / 2021 7 - 8 www.sentera.eu back to the table of contents...
- Page 8 In case of heavy pollution, clean with a non-aggressive product. In these circumstances the unit should be disconnected from the supply. Pay attention that no fluids enter the unit. Only reconnect it to the supply when it is completely dry. MIW-SC2A4-EN-000 - 22 / 02 / 2021 8 - 8 www.sentera.eu...
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