Specifications

yueqing 400 amp model case circuit breaker is applied in the circuit of AC50HZ,rated voltage 690V,rated current 225A.

yueqing 400 amp model case circuit breaker 

 

Applcation rang of yueqing 400 amp model case circuit breaker 

 

1.SNM1series moulded case breakers are one of the new type breakers which have been developed by the company using international advanced design and manufacturing technology .

2.The rated insulation voltage of the breaker is 800V ,suitable for turn-on or turn off not frequency and starting a motor not frequency in the circuit of AC50HZ,rated working voltage 690Vor below-rated working current up to 800A.

3.The breaker have overload ,short circuit and under voltage protect devices, so as to protect the circuit and the power equipment against damage.

 

This mini circuit breaker is in accordance with these standards as follows:

 

IEC60947-1 and GB14048.1-2006 general

IEC60947-2 and GB14048.2-2008 low voltage breakers

IEC60947-4-1 and GB14048.4 electromechnical contractors and motor starters

IEC60947-5-1 and GB14048.5 electromechnical control circuit electrical equipments

 

Technical parameterof yueqing 400 amp model case circuit breaker

1.Rated insulation voltage is 800V

2.Rated working voltage is 690V

3.Frequency is 50Hz

4.Rated current of frame:63A, 100A, 160A, 225A, 400A, 630A, 800A

5.Breaking capacity :  C(basic type)   L(typical)    M(high)    H(higher)

6.Rated circuit breaking capacity :   25KA  18KA  35KA  50KA  45KA  65KA   75KA  85KA  100KA 

 

Technical performance index of  yueqing 400 amp model case circuit breaker 

Type	Rated current (A)	Polenumber	Ratedinsui-ating- voltage(V)	Rated operat- ingvoltage(V)	Arcing-over distance (mm)	short circuit breaking capacity(KA)	short circuitbreaking capacity(KA)	performance		Utilizationcal-egory
								load	unload
SNM1-63L	6,10,16, 20,25,32, 40,50,63	3,4	500V	400V	0	25	18	1500	8500	A
SNM1-63M					0	50	35
SNM1-100L	10,16,20, 25,32,40, 50,63,80, 100		800V		0(<50)	35	22
SNM1-100M					0(<50)	50	35
SNM1-100H					0(<50)	85	50	1000	7000
SNM1-225L	100,125, 160,180, 200,225				<50	35	22
SNM1-225M					<50	50	35
SNM1-225H					<50	85	50	1000	4000
SNM1-400L	225,250, 315,350, 400				<50	50	35
OM1-400M					<100	65	42
SNM1-630L	400,500, 630				<100	50	35
SNM1-630M					<100	65	42
SNM1-630H					<100	100	65
SNM1-800M	630,700 800	3			<100	75	50
SNM1-800H					<100	100	65
SNM1-1250M	1000,1250				<100	100	65
SNM1-1250H					<100	125	5