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China CMC-LX Series 3 Phase Soft Starter Factory, 7.5-630kW, AC380V, Suppliers for Smooth Motor Control
Features
Unique SCR triggering close-loop control algorithm
The unique SCR close-loop control is specially designed for standard load and heavy load. User can choose current-limit start or voltage ramp start according to load conditions so as to realize absolutely smooth start without torque oscillation.
High control precision
Adoption of high-performance Cortex-M3 32-bit inner core CPU for central control with features of fast speed, high precision and strong capability of anti-interference.
Simple and compact appearance
Three-in and six-out structure of main circuit under patent protection and built-in current transformer with easy wiring and high reliability.
Standard MODBUS-RTU protocol
When ordering, users can choose whether to carry the standard MODBUS-RTU communication protocol according to the actual situation.
Integrated with advanced protective function
Protective functions of phase failure, overload, overcurrent, phase current unbalance, thyristor overheat to protect motor and other equipment.
Fireproof material
The product of below 90kW is in plastic structure made with inflaming retarding ABS material; for the product of 90kW and above, the upper cover is in plastic structure and main frame is made of aluminium-zinc plate with features of heatproof and corrosion resistance.
Movable panel
The panel can be moved to equipment operating surface through machine interface for remote control.
Easy maintenance
The monitor signal coding system consists of 4-digit display monitors working state of the equipment for 24 hours and provides fast fault diagnosis.
Basic Parameters
| Control power | External | AC110V-10% to AC220V+15%, 50/60Hz |
| Built-in | Internal integrated control power supply, no need for external | |
| Three-phase power | AC380V±15% (Standard or Internal delta wiring) | |
| Nominal current | 18A~1200A, 23 rated values in total | |
| Applicable motor | Squirrel cage AC asynchronous motor | |
| Start ramp mode | Voltage ramp start, current ramp start | |
| Stop mode | Free stop, Soft stop | |
| Logical input | Impedance 1.8 KΩ, power supply +24V | |
| Start frequency | Frequent or infrequent startup can be done, it is recommended that the number of startups per hour does not exceed 10 times | |
| Protective function | Phase loss, overcurrent, SCR protection, overheating, phase current imbalance | |
| IP | IP00 | |
| Cooling type | Natural cooling or forced air cooling | |
| Installation type | Wall mounted | |
| Communication method | RS485（Optional） | |
| Environmental condition | When sea altitude is above 2,000m, soft starter should be derated for use. Ambient temperature: -25 ~ +45°C Relative humidity: less than 95% (20°C±5°C) Free of flammable, explosive and corrosive gas or conductive dust. Indoor installation, good ventilation, vibration less than 0.5G |
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Model Specifications
| Model No. | Rated Current (A) | Applicable motor power (kW) | Size & Net weight |
|---|---|---|---|
| CMC-008/3-LX | 18 | 7.5 | 320*172*172mm, 4.3kg |
| CMC-011/3-LX | 24 | 11 | |
| CMC-015/3-LX | 30 | 15 | |
| CMC-018/3-LX | 39 | 18.5 | |
| CMC-022/3-LX | 45 | 22 | |
| CMC-030/3-LX | 60 | 30 | |
| CMC-037/3-LX | 76 | 37 | |
| CMC-045/3-LX | 90 | 45 | |
| CMC-055/3-LX | 110 | 55 | |
| CMC-075/3-LX | 150 | 75 | |
| CMC-090/3-LX | 180 | 90 | 474*285*235mm, 18.5kg |
| CMC-110/3-LX | 218 | 110 | |
| CMC-132/3-LX | 260 | 132 | |
| CMC-160/3-LX | 320 | 160 | |
| CMC-185/3-LX | 370 | 185 | |
| CMC-220/3-LX | 440 | 220 | 512*320*235mm, 23kg |
| CMC-250/3-LX | 500 | 250 | |
| CMC-280/3-LX | 560 | 280 | |
| CMC-315/3-LX | 630 | 315 | |
| CMC-400/3-LX | 780 | 400 | 652*400*235, 40.8kg |
| CMC-470/3-LX | 920 | 470 | |
| CMC-530/3-LX | 1000 | 530 | |
| CMC-630/3-LX | 1200 | 630 |
Dimensions
| Model | Structure No. | G | H | I | K | L | M | A | B | C | D | Gross weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CMC-008~075/3-LX | F005 | 172 | 320 | 172 | 156 | 240 | 6 | 54 | 35 | 72 | 55 | 4.7 |
| CMC-090~185/3-LX | F006 | 285 | 474 | 235 | 230 | 390 | 9 | 85 | 61 | 101 | 39 | 19.9 |
| CMC-220~315/3-LX | F007 | 320 | 512 | 235 | 270 | 415 | 9 | 97.5 | 60 | 101 | 39 | 25.8 |
| CMC-400~530/3-LX | F008 | 400 | 652 | 235 | 330 | 500 | 9 | 120 | 57 | 101 | 39 | 51.5 |
F005
F006 & F007 & F008
Applications
Pumps and Fans
Conveyors and Belt Systems
Compressors
Centrifuges
Crushers and Mills
Mixers and Agitators
HVAC Systems
Conveyor Belt Systems
Mining Equipment
Water and Wastewater Treatment
Overall, low voltage soft starters are widely used in industrial processes where controlled acceleration and deceleration of electric motors are essential for efficient and reliable operation.
Frequently Asked Questions
What start ramp modes do these soft starters support?
The soft starters support both voltage ramp start and current ramp start modes to ensure a smooth start without torque oscillation.
What core CPU is used in the control system?
It utilizes a high-performance Cortex-M3 32-bit inner core CPU for central control, providing fast processing speeds, high precision, and strong anti-interference capabilities.
What is the protection rating (IP) of this soft starter?
The equipment has an IP00 protection rating and is designed for indoor installation with good ventilation.
Is remote control supported by the panel?
Yes, the movable panel can be moved to the equipment operating surface through the machine interface to allow for remote operation.
What is the recommended maximum startup frequency?
Frequent or infrequent startup can be performed, but it is recommended that the number of startups per hour does not exceed 10 times.
What materials are used for the outer structure?
Products below 90kW feature a plastic structure made of inflaming retarding ABS. For products of 90kW and above, the upper cover is plastic while the main frame is made of heatproof and corrosion-resistant aluminium-zinc plate.