CMTM6RT Series 400A 3P Thermal Electromagnetic Circuit Breaker

Short Description:

The CMTM6RT adjustable molded case circuit breaker is a newly upgraded circuit breaker developed by the company. It was designed by combining the advantages of similar international products with the demands of both domestic and international markets. This MCCB is primarily used for distributing electric power energy, protecting circuits and power equipment from overload, short circuit, and undervoltage. It is also suitable for line conversion and infrequent motor starting.

Product Detail

Product Tags

Product Details

CMTM6RT adjustable moulded case circuit breaker is new upgraded circuit breaker searched by company combined with the advantages of similar international products and demand of domestic and international market.
The product is applicable for distribution system of AC50/60Hz ,rated voltage up to 690V,and rated current from 20A-800A. It used to distribute electric power energy, protect circuits and power equipment against overload,short circuit,undervoltage .It also can be used for conversion of line and infrequent starting motor.
The product conforms with the standard of IEC60947-2

   Frame current   Inm(A) 400
Model NO. CMTM6RT-400S CMTM6RT-400M
Poles 3,4
Rated Current ln(A) 200-250,250-320,320-400
Rated Voltage Ue (V) AC400V
Rated Insulation voltage Ui (V) AC1000V
Short Circuit breaking capacityKA) Icu/Ics AC400V 50/35 70/50
Operating cycle number ON 2000 2000
OFF 4000 4000
Electric operating device(MD)    
External driving operating handle    
Automatic release Thermal electromagnetic type




1.Rated current from 20A-800A
2. It can used for power distribution and motor protection
3. Protection of circuits against short circuit current and overload
4.Nice design and easy to install
5. Easy to install with auxiliary devices(Alarm contact/Auxiliary contact/Under voltage release/Shunt release/Handle operating mechanism/Electrical operating mechanism)

Type Designation

Type Designation


The MCCB moulded case circuit breakers are professional & widely used in building, residence, industrial applications , electric power transmission.




4 pcs per carton
Dimension per outer box: 38*37*29 cm

Main Market

MUTAI Electric focus on Middle East, Africa, South East Asia, South America, Russia Market.

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