ULM3(CM3) series of molded case circuit breaker, is our company independent research and development of a household or industrial low-voltage circuit breaker. It conforms to GB/T 14048.2 and IEC 60947-2 standards. ULM3(CM3) molded case circuit breaker has the characteristics of compact structure, full modularization, high break, zero arc and so on. Its rated insulation voltage 800V, suitable for ac 50Hz/60Hz, rated working voltage 690V and below, rated working current to 630A circuit for infrequent conversion and motor infrequent start. Circuit breaker has overload, short circuit and undervoltage protection device, can protect the circuit and power equipment from damage.
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Technical Parameters

 

 

Product Description
Standard Certifications IEC60947-2
Item No. ULM3-320
Number of poles 2 3
Electrical characteristics as per IEC60947-2 and EN60947-2
Rated current,In 16-20-25-32-40-50-63-80-100-125-140-180-200-225-250-300-320
Rated Operating Voltage,Ue DC 1000V DC 1500V
Rated Insulated Voltage (Ui) 1500V
Rated impulse withstand voltage,Uimp) 12kV
Types   H
Ultimate breaking capacity
(kA rms Icu)
DC 1000V 20
DC 1500V
Rated service breaking capacity
(kA rms Icu)
DC 1000V 16
DC 1500V
Protection function Overload, Short-circuit
Type of trip unit Thermal-Magnetic
Magnetic trip range 320A
Utilization category   A
Endurance Mechanical 10000 operations
Electrical 1500 operations
Connection Standard Front connection
Mounting Standard Screw fixing
Dimensions(mm) Pole  
2 200X90X126
3 200X133X126
Note) Depth by door cut size : c1 for large cut, c2 for small cut  

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+86 17357752056

+86 17357752056

gina@ulterior-cn.com

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