Three Phase 440v Electric Soft Starter For Asynchronous Motor CK70 Built-In Bypass
The CK70 series intelligent soft starter with built-in bypass is an advanced motor control solution optimized from our CK60 economic soft starter. Utilizing high-performance DSP technology and modern power electronics, it provides superior drive control for general machinery applications.
- Advanced DSP central processing unit for real-time control
- Three control modes: Ramp voltage, Ramp current, Current limit
- Adjustable start time (1-120s) and stopping time (0-120s)
- Comprehensive protection: short-circuit, over-voltage, overload, etc.
- Built-in bypass contactor for reliable operation
- LCD display for monitoring current, voltage, and alarm parameters
- Standard Modbus protocol communication interface
| Attribute | Value |
|---|---|
| Applicable Standards | GB14048.6-2016 (IEC947-4-2) |
| Motor Type | Squirrel-cage three-phase asynchronous motors |
| Motor Power Range | 11A-1260A (5.5-630kW) |
| Control Voltage | AC220V±15% or AC110V±15% |
| Rated Voltage | AC380V±15% or 660V±15% |
| Control Modes | Ramp voltage, Ramp current, Current limit |
| I/O Configuration | 3 logic inputs, 1 analog output, 2 relay outputs |
| Communication | RS485 with Modbus protocol |
The soft starter limits starting current and torque to prevent mechanical shock and power grid voltage drops. By controlling SCR conduction angle, it gradually increases motor voltage from reduced to rated level during the set start time. This stepless voltage control enables smooth acceleration tailored to load characteristics, improving equipment performance while reducing maintenance costs and extending service life.
| Model Number | Rated Power (kW) | Rated Current (A) | Dimensions (mm) |
|---|---|---|---|
| CK70-00840 | 7.5 | 22 | 278×150×143 |
| CK70-01140 | 11 | 27 | 278×150×143 |
| CK70-01540 | 15 | 30 | 278×150×143 |
| CK70-01840 | 18.5 | 34 | 278×150×143 |
| CK70-02240 | 22 | 38 | 278×150×143 |
| CK70-03040 | 30 | 65 | 350×180×177 |
| CK70-03740 | 37 | 70 | 350×180×177 |
| CK70-04540 | 45 | 88 | 350×180×177 |
| CK70-05540 | 55 | 110 | 380×224×193 |
| CK70-07540 | 75 | 140 | 380×224×193 |
| CK70-09040 | 90 | 172 | 461×266×233 |
| CK70-11040 | 110 | 200 | 461×266×233 |
| CK70-13240 | 132 | 280 | 461×266×233 |
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