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3 Phase Soft Starter with Built-in Bypass for 380V Motor

CMC-MX series motor soft starters are suitable for soft start and soft stop of standard squirrel cage asynchronous motors.
✔ Start and stop the motor smoothly to avoid electrical shock;
✔ Built-in bypass, save space, easy to install;
✔ Wide range of current and voltage settings, torque control, adaptable to various loads;
✔ More than ten kinds of motor protection functions;
✔ Keypad control and communication control.
 
 
Availability:
  • XiCHi-MX Compact Soft Starter with Built-in Bypass
  • XiChi
  • 3phase AC 380V (Standard wiring), AC380V±30% (Internal delta wiring)
  • Ordinary squirrel cage AC asynchronous motor
  • 7.5 ~ 280 kW
  • General-purpose model, widely suitable for common mechanical loads. Typically used for fans, pumps, compressors, etc.


Descriptions

CMC-MX motor soft starter is a new type of motor starting and protection device for soft starting and soft stopping of standard squirrel cage motors. The product combines power electronic technology, microprocessor and automatic control.

It can start/stop the motor smoothly without steps, avoiding mechanical and electrical shocks caused by traditional starting methods such as direct starting, star/delta starting, and auto-decompression starting. Effectively reduce starting current and power distribution capacity and reduce investment.

The CMC-MX soft starter integrates current transformer and bypass contactor inside, and users do not need to equip it additionally.


Main Features

1. Various starting methods 

Users can select current limit start, voltage ramp start, and can apply programmable kick start and start current limit in each mode to meet the needs of the site and achieve a good starting effect.

2. High Reliability

The microprocessor digitally processes the signals in the control system, avoiding the excessive adjustment of the analog circuit in the past, so as to obtain good accuracy and execution speed.

3. Powerful Anti-interference Performance

All external control signals are optically isolated, and different anti-noise levels are set to adapt to use in industrial environments.

4. Easy Adjustment

The control system has a wide range of applications, the mode adjustment is simple and easy to observe, and various functional options can be used to match various control objects.

5. Optimized Structure

The compact internal structure design is particularly convenient for users to integrate into the existing system, saving the cost of current transformers and bypass contactors for users.

6. Self-adaption of power frequency

Power frequency 50/60Hz adaptive function, convenient for users.

7. Analog output

4-20mA current output function, user-friendly.

8. Advanced MODBUS-RTU Communication function

During network communication, 32 devices can be connected. Users can achieve the purpose of automatic communication by setting the baud rate and communication address. The communication address setting range is 1-32, and the factory default value is 1. The communication baud rate setting range is: 0, 2400; 1, 4800; 2, 9600; 3, 19200; the factory value is 2 (9600).

9. Perfect protection

A variety of motor protection functions (such as overcurrent, input and output phase loss, thyristor short circuit, overheat protection, leakage detection, electronic thermal overload, internal contactor fault, phase current imbalance, etc.) not be damaged.

10. Easy Maintenance

The monitoring signal coding system composed of 4-digit digital display monitors the working conditions of the system equipment 24 hours a day, and provides fast fault diagnosis at the same time.


Technical Parameters of CMC-MX Bypass Soft Starter

Rated control supply voltage

AC110V--220V±15%, 50/60Hz

Rated operation voltage

Standard wiring: AC380V;

Internal delta wiring AC380V±30%

Rated current

18A--560A, 18 rated values in total

Applicable motor type

Ordinary squirrel cage AC asynchronous motor

Start ramp mode

Voltage ramp start and current ramp start

Stop mode

Free stop and soft stop

Logical input

Impedance 1.8 KΩ, power supply +24V

Start frequency

Frequent or infrequent start available, start is advised not to exceed 10 times each other

Protective function

Phase failure, overcurrent, short circuit, SCR protection, overheat, phase current unbalance, wiring and inner fault

Protection level

IP00, IP20

Cooling type

Natural cooling or forced air cooling

Installation type

Wall-mounted

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. 

Good ventilation for indoor installation and vibration is less than 0.5G


Model Selection of CMC-MX Bypass Soft Starter

Type Designation

Designation

(i.e. CMC-015/3-MX)

Description
CMC XiChi Product Code
015

Power of the adapted motor

015=15kW

3

Operational voltage

3=380V

MX Soft starter series code



Item Rated Current

(A)

380V

Adapted motor power

(kW)

Dimensions(mm)

&

Gross Weight(kg)

1

18 7.5

173*275*192

6.3kg

2 24 11
3 30 15
4 39 18.5
5 45 22
6 60 30
7 76 37
8 90 45
9 110 55
10 150 75

285*450*305

25kg

11 180 90
12 218 110
13 260 132
14 320 160
15 370 185

320*523*330

31.5kg

16 440 220
17 500 250
18 560 280


Dimension of CMC-MX Bypass Soft Starter(unit: mm, 380V)

compact motor starter-XiChiElectric compact motor starter-XiChiElectric compact motor starter-XiChiElectric
55kW and below 75kW - 160kW 185kW - 280kW


Model G H I K L M E D A/B/C
CMC-008-55 173 275 192 133 250 7 90 86 50
CMC-075-160 285 450 305 230 390 9 170 158
50
CMC-185-280 320 523 330 270 415 9 195 158 50


How to order low voltage Motor Soft Starter

  • When placing an order, please inform the supplier of the product model, specifications, load conditions and conditions of use in order to select the product correctly.

  • The standard configuration of the soft starter includes a current transformer, and users do not need to connect an external current transformer.

  • For users who have special requirements for this product, please explain to the supplier when ordering, and we will provide perfect services.

China Electric Motor Soft Start-XICHIELECTRIC


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