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Bulk Sale
Electric Actuators

4 pcs, 8% off
10 pcs, 10% off

** The special offer is only for Electric Actuators.

** Bulk Purchase, please Inquire Us directly. 

KST-B1 Parallel Actuator Controller For Automatic Window Opening System

Window Control Units support for SHEV system
In stock
Product Details
Brand: Soon Industrial


  1. KST-B1 Series Actuator Controllers are for a series of 24VDC Electric Actuator working TOGETHER.
  2. Built-in OVER CURRENT PROTECTION for each system.
  3. Supported to FIRE DETECTOR CENTRAL CONTROL for SHEV application.
  4. SENSOR PORT for AUTOMATIC mechanism application.
  5. Memorized a period of let-through current in seconds.
  6. The PCB and Ring Transformer are protected by stainless steel case with 1mm thickness.


  • Input Voltage: 22 VAC
  • Output Voltage: 24 VDC; M+, M-
  • Ports:
    • Control Signal: COM, Open, Stop, Close
    • SHEV: COM, IN
    • Series Control: 5-pin wire connector
  • Over Current Protection: 4A/ 8A*

SPEC/ Ring Transformer

  • Input Voltage 100~120VAC or 220~230VAC ( Adjust through Terminal Block Connector )
  • Output Voltage: 24 VAC
  • Frequency: 60 Hz ( 50 Hz is optional )
  • Max. Currency: 4A/ 8A*
    • 4A is for about 4 pcs of KST-A01 Linear Actuators.
    • 8A is for about 8 pcs of KST-A01 Linear Actuators.
    • Supporting the number of electric actuators is depending on the following factors: (1) Type of actuators; (2) Working current when installing on applicated mechanism; (3) The moment of a force.

SPEC/ Remoter* (optional)

  • Radio Frequency: RF 433
  • Operating Range: 12 meters in open space
  • LED Indicator: Built-in
  • Battery: LA23A 12V

Outer Case

  • Dimension: L 26, D 14, H 10 cm
  • Material: Stainless steel with powder coating, with WIRING HOLE, SCREWING HOLE.

For Automatic Window Opening Systems

  • SHEV, Smoke Heat Exhaust Ventilation. Built-in supporting PORT for FIRE DETECTOR CENTRAL CONTROL & SMOKE SENSOR.
  • Operating A Row Of Windows: By connecting electric actuator in series. We can operate a row of windows at the same time.
  • Increasing The Usage Rate Of High Windows: Improving the natural ventilation of interior area and reducing air-con reliance.
  • Place: Factory, Commercial Building, Gym, Community Center, Medical Center, Store, Restaurant, Green House, and Household.
  • Automatic Scenery: (1)Connecting with sensors for automatic window control, rain sensor, temperature sensor, humidity sensor, or timer. (2) Work with Smart home system for automatic sceneries.

Choose Right Specs And Accessories For Your Applications

  1. Option 1 Maximum current: 4 A / 8 A
  2. Option 2 Remote RF 433
  3. Option 3 Wall Switch, there should be an additional wall switch if you select KST-B14, KST-18, KST-B14-R, or KST-B18-R Actuator Controller.
    1. KST-WS-J120: diaphragm switch.
    2. KST-WS-A120: White surface, easier wiring.
    3. KST-VZ-213S: Wi-Fi Smart Switch, support for APP "VIZO SMART" control.
  4. Option 4 - Plug Type: Type B/ Type E
  5. Option 5 - 5 pin connecting cable. 1 cable for connecting 2 same KST-B1 Actuator Controllers work together.

! Before Placing Order !

  • There're more details and cases of application on our website. Please check for more information.
  • Please confirm the available quantity, lead time, shipping method, and application before placing orders.
  • We are welcoming any questions about our products or linear actuator applications. Customers could consult with us for more compatible SPECs.
  • Our email: . We will get back to you within 24 hours.

!Returns And Complaints !

  • Any complaints referring to either the quantity or the quality of the delivered products must be made within 8 (eight) days after receiving the products.
  • Returns made as a result of Soon Industrial Co., Ltd. error will be accepted at our discretion. Soon Industrial Co., Ltd. will provide 1 TO 1 COMPLAINT for customers or make a deduction on the next order.
  • Returns are made as a result of customers, including ordered wrong specifications, quantity, style, etc. After noticing and accepted by Soon Industrial Co., Ltd., the customer shall deliver back the products within 8 (eight) days after receiving the package. The returning should be well re-packaged with all assemblies, unused, no defects. Soon Industrial Co., Ltd. will make a refund after receiving and inspecting the returned products. There will be a 30% restock charge on customers.

!Warranty !

  1. The Warranty is limited to the repair or replacement of product parts that Soon Industrial Co., Ltd. acknowledges as defective through equivalent re-manufactured Products.
  2. The Warranty for KST Series Electric Actuators and Actuator Controllers are 12 (twelve) months from the day of dispatch.
  3. The Warranty does not cover the following situations:
    1. Defects caused by fair wear and tear;
    2. Inadequate or abnormal use;
    3. Damage caused by carriers;
    4. Installed our products on defeats windows or electrical system;
    5. The carelessness of workman or customer;
    6. Incorrect use or installation;
    7. The use of non-original spare parts, actuators, and controllers.
  4. The customer shall do the product/ system maintenance at least every SIX months.
  5. Implementation terms: If customer finds out any defect which does not cause under the situation from Clause 3. & 4. Customers shall exercise their rights within 14 days after finding out the defect. And providing evidence of defect by videos, photos, or other methods and showing the copy of the purchase document/ invoice to Soon Industrial Co., Ltd. through email ( or letter (1F., No.239, Sec. 1, Defang Rd., Dali Dist., Taichung City 412, Taiwan ). After accepted and confirmed by Soon Industrial Co., Ltd., we will send new complaints to customers.
  6. The Warranty does not include indirect damage, loss of profits, loss of productions, people injury, or death resulting from negligence.
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Service Area

Shipping service is limited to some countries, please Inquire Us directly.

Standard Products

The products provide in the store are Standard Products.

Lead Time

The lead time for standard products is about 5 to 15 business days.


We accept payment through PayPal.


Please feel free to consult us  before placing  orders. 


Orders will deliver by DHL, FedEx or Local post office.


1 year Warranty on Electric Actuators, Controllers, Smart Home Device. 

Get Quotation

- Customized products

- Rush or Large order

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