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Factory Direct Sale CJMM3-125L/3300 Air Switch AC MCCB Moulded Case Circuit Breaker

Short Description:

  • CJMM3 series Moulded Case Circuit Breakers, in low-voltage distribution lines, can connect, carry and break current under normal circuit conditions, and can also connect, carry and break current under specified abnormal circuits for a certain period of time. A mechanical switch that protects lines and equipment when overload, short circuit, or undervoltage occur on distribution lines (accessory function). It is widely used in low-voltage power consumption places such as electric power, construction, industry, and OEM.

Product Detail

Product Tags

Structural Characteristics

  • Frame grade: 125A, 160A, 250A, 400A, 630A
  • Rated working voltage Ue: 400/415V, 690V
  • Breaking capacity: Covers commonly used breaks in the power distribution field: 20kA, 36kA, 50kA, 70kA, 75kA (see the parameter table for specific breaking of each frame)
  • Number of poles: including 2-pole, 3-pole and 4-pole products
  • Release type: single magnetic type, thermal magnetic type
  • Installation method: fixed, plug-in, drawer

 

Working And Installation Conditions

  • Normal working conditions: -5~40°C For -40°C ~-5°C, 40°C ~70°C, please contact us.
  • If the working environment temperature exceeds 40°C, please refer to the temperature derating coefficient table for use;
  • Storage temperature: -40~70°C (If the storage temperature is lower than normal working conditions, the product should be returned to working conditions and left to stand for at least 24 hours before being put into use); Normal operating humidity:
  • When the ambient air humidity is +40°C, the relative humidity of the atmosphere cannot exceed 50%; if the temperature is lower, it can be used under higher relative humidity conditions;
  • For example: at +20°C, it reaches 90%.

 

Technical Data

Type CJMM3-125 CJMM3-160 CJMM3-250 CJMM3-400/630
No. of Poles 3P
Rated Current In (A) 16/20/25/32/40/50/63/80/100/125 50/63/80/100/125/140/160 125/140/
160/180/200
225/250
225/250/315/350/400
500/630
Impulse Withstand Voltage Uimp (kV) 8 10
Rated Operational Voltage Ue (V AC) 400V/415V/690V
Rated Insulation Voltage Ui (V AC) 800 1000
Operational Frequency (Hz) 50/60Hz
Utilisation Category A
Reference Temperature -5~+40°C
Operating Temperature -5~+40°C
Standard IEC60947-1/IEC60947-2
Short circuit breaking capacity level L H L H L H L H
Rated ultimate short-circuit
breaking capacity (kA)
AC230/240V 1P+N,2P 36 75 50 75 50 75 / /
AC400/415V 2P,3P,4P 25 50 36 50 36 50 50 70
AC690V 3P,4P / / 8 10 8 10 10 15
Rated operating short-circuit
breaking capacity (kA)
AC230/240V 1P+N,2P 18 50 30 50 30 50 / /
AC400/415V 2P,3P,4P 15 36 20 36 20 36 36 50
AC690V 3P,4P / / 4 5 4 5 7,5 10
Electrical Life 5000 3000
IP Prolection (from front side) IP40
Pollution Degree III
Type of Release Single magnetic trip/thermal magnetic trip
Width (3 Pole) (mm) 75 90 107 150
Height (mm) 130 155 165 257
Depth (mm) 66 73 67,5 114

CJMM3 MCCB 01


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