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CNC Electric Group Co., Ltd.

Circuit breaker, YCM7, MCCB manufacturer / supplier in China, offering YCM7 MCCB Moulded Case Circuit Breaker, Oil Immersed Electric Power Transformer, Metalclad Mv Enclosed Switchgear Kyn28A-12 (RMU or GIS) and so on.

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Supplier Homepage Product Distribution Apparatus YCM7 MCCB Moulded Case Circuit Breaker

YCM7 MCCB Moulded Case Circuit Breaker

FOB Price: Get Latest Price
Min. Order: 10 Pieces
Production Capacity: 2000 PCS/Day
Transport Package: Export Package
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: YCM7
  • Operation: Manual Type
  • Installation: Fixed
  • Poles Number: 4
  • Function: Ovp(Overvoltage Protection)
  • Colour: Grey
  • Frequency: 50/60Hz
  • Rated Insulating Voltage: 950V
  • Arcing Over Distance: 0
  • Specification: CE, CB, ISO9001, 14001
  • Breaking Capacity: Low Voltage Circuit Breakers
  • Speed: Normal Type Circuit Breaker
  • Structure: Moulded Case Circuit Breaker
  • Type: Circuit Breaker
  • Certification: CE
  • Certificate: ISO9001,CE
  • Rated Current in: 12.5-630A
  • Operating Voltage: 690V
  • Trademark: CNC
  • Origin: Wenzhou, China
Product Description
YCM7 MCCB Moulded Case Circuit Breaker:

YCM7 MCCB moulded case circuit breaker is one of the most advanced type breaker in the world, which adopts international advanced design and manufactural technology. They are suitable for short circuit and overload protection in circuit of AC690V 50/60Hz, rated current from 12.5A to 630A. Its rated operating voltage is 690V. It can make and break the unfrequent circuit under normal conditions. It takes protective effect when squirell-cage motors unfrequently start, making&breaking and protecting against overload, short circuit and lacking voltage.

Key Words: circuit breaker, YCM7, MCCB, Moulded Case Circuit Beaker, MCCB breaker, breaker


YCM7 MCCB Moulded Case Circuit Breaker

CNC GROUP is one of the China Top 500 Enterprises, specialized in manufacturing industrial electrical appliance, is a national large-scale enterprise integrated with R&D, manufacturing, trade and service, etc. CNC was founded in 1988, which became a nationwide non-regional enterprise group in 1997. It mainly deals in high-low voltage electrical equipment, whole set, instrument and meters, explosion-proof appliances, building electrical appliances, power transformers, with more than 100 product series and 20,000 specifications. Meanwhile, its commercial fields also cover real estate, investment, energy, logistics, information and other industries.


CNC holds total assets with more than 5 billion RMB, and the plant area amounts to 0.25 million square meters, with over 10,000 employees. CNC now owns nine holding companies, over 60 member enterprises, 1,000 cooperative units, 600 domestic sales companies and 6 foreign representative offices. What's more, the marketing network covers not only domestic market but also 60 foreign countries and districts. The annual turnover reaches over 10 billion RMB on average, which ranked "China Top 500 Enterprises".



Over the years, CNC has been honored with "China Top 500 Enterprises", "China Top 500 Machinery Enterprises", "China Top 500 Manufacturing Enterprises", "China Top 100 Industrial Electrical Enterprises", "China Top 100 Growing Enterprises", "Advanced foreign exchange-earning enterprises", "Vice President of Branch Units of Low-voltage Electrical Appliances of China Chamber of Commerce for Import and Export of Machinery and Electronic Products", "Advanced Unit of Township Enterprise Management", etc..

CNC has obtained three management system certificates, including ISO9001, ISO14001, OHSMS18001. Products have obtained CCC, CE, CB SEMKO certificate. The trademark "CNC" has won "Chinese well-known trademark" for years. CNC also has won many other titles of honor as "National Inspection-free Product", "China Quality Faith and Consumer Trust Unit", "Advanced Unit in the National Brand Name Service", "National Model Enterprise of Quality and Integrity", etc.


Rated Current Of Release(A) Thermo Dynamic Release(ambient temperature) Operational Current Of Magnetic Release(A)
1.05In(cold state)  Non-tripping time(h) 1.30In(heat state) Non-tripping time(h)
In≤63 ≥1 <1 10In±20%
63<In≤100 ≥2 <2 10In±20%
25<In≤630 ≥3 <3 5-10In±20%







Rated Current Of Release(A) Thermo Dynamic Release(ambient temperature) Operational Current Of Magnetic Release(A)
1.0In(cold state)  Non-tripping time(h) 1.20In(heat state) Non-tripping time(h) 1.50In(heat state) Non-tripping time(h) 1.01In(heat state) Non-tripping time(h)
12.5<In≤630 ≥2 <2 <4min 2S<Tp<10S 12In±20%







Type Rated Current(A) Poles Rated insulating voltage(V) Rated Operating Voltage(V) Arcing Over Distance(mm) Ultimate short circuit breaking capacity(kA) Services shour circuit breaking capacity(kA) Operating life(times)
Electrical Mechnical 
YCM7-100D 12.5/16/20/25/32/40/50/63/80/100 3,4 750 690 0 18 14 1500 8500
YCM7-100N 25 19
YCM7-100H 70 53
YCM7-100L 150 113
YCM7-160D 16/20/25/32/40/50/63/80/100/125/160 25 19 1000 7000
YCM7-160N 36 27
YCM7-160H 70 53
YCM7-160L 150 113
YCM7-250D 160/180/200/225/250 25 19 1000 7000
YCM7-250N 36 27
YCM7-250H 70 53
YCM7-250L 150 113
YCM7-400D 200/225/250/300/315/400 35 26 1000 4000
YCM7-400N 45 34
YCM7-400H 70 53
YCM7-400L 150 113
YCM7-630D 315/350/400/500/600/630 35 26 1000 4000
YCM7-630N 45 34
YCM7-630H 70 53
YCM7-630L 150 113
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