Singi Dz20 630A 100ka Air Electric Molded Case Circuit Breaker MCCB

Basic Info

Model NO.	Dz20
Poles Number	3
Type	Circuit Breaker
Function	Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
Certification	ISO9001-2000, CE, CB
Key Word	MCCB
Key Word2	Moulded Case Circuit Breaker
Key Word3	Circuit Breaker
Rated Voltage	380/400V AC
Rated Frequency	50Hz
Breaking Capacity1	100ka
OEM	Available
Material	PC
Rated Current	630A
Rated Insulation Voltage	660V
Transport Package	Standard Exporting Carton
Trademark	SINGI
Origin	Zhejiang, China

Product Description

Product Introduction DZ20 series moulded case circuit breakers are suitable for AC 50hz, rated current from 16A to 630A, rated insulation voltage 660V, rated working voltage AC380V/400V and below circuits, this series of circuit breakers are generally used for power distribution, and can also be used to protect motors use. Under normal circumstances, the circuit breaker can be used for the infrequent switching of the line and the infrequent starting of the motor respectively.Circuit breakers for distribution are used to distribute electrical energy in the distribution network and serve as overload, short-circuit and under-voltage protection for lines and power equipment.The circuit breaker for protecting the motor is used in the power distribution network for the starting and running of the squirrel-cage motor, and for the overload, short-circuit and under-voltage protection of the squirrel-cage motor.

Constructure Feature
This series of circuit breakers is based on Y-type products and consists of four parts: insulating shell, operating mechanism, contact system and release. The operating mechanism of the circuit breaker has the function of quickly closing and breaking the contacts, and its 'close', 'open' and 'free trip' positions are distinguished by the handle position.C-type and J-type circuit breakers are derived and designed on the basis of Y-type circuit breakers. The J-type circuit breaker is a structural improvement of the contacts of the Y-type circuit breaker, so that in the case of a short circuit, the contacts can be quickly disconnected before the action of the mechanism to achieve the purpose of improving the on-off capability.Technica Parameter

Frame rating rated current Inm(A)	Conventional thermal current Ith(A)	Short circuit breaking capacity level	Short circuit breaking capacity kA		Circuit breaker rated current (A)
			Icu/cosf	Icu/cosf
160	160	C	12/0.3	/	16.20.25.32.40.50.63.80.100.125.160
100	100	Y	18/0.3	14/0.3	16.20.25.32.40.50.63.80.100
		J	35/0.25	18/0.3
		G	100/0.2	50/0.25
250	250	C	15/0.3	/	100.125.160.180.200.225.250
225	225	Y	25/0.25	19/0.3	100.125.160.180.200.225
		J	42/0.25	25/0.25
		G	100/0.2	50/0.25
400	400	C	20/0.3	/	250.315.350.400
		Y	30/0.25	23/0.25
		J	42/0.25	25/0.25
		G	100/0.2	50/0.25
630	630	C	20/0.3	/	400.500.630
		Y	30/0.25	23/0.25
		J	50/0.25	25/0.25
1250	1250	Y	50/0.25	38/0.25	630.700.800.1000.1250
		J	65/0.2	32.5/0.25
2000	2000	J	100/0.2	50/0.25	1000.1250.1600.1800.2000

Test current name	Setting current multiple	Appointment time (h)		starting state
		ln≤63	ln>63
Conventional non-tripping current	1.05ln	≥1	≥2	cold start
Conventional tripping current	1.3ln	<1	<2	hot start

Test current name	Setting current multiple	Appointment time (h)		starting state
Conventional tripping current	1.0ln	≥2		cold start
Conventional tripping current	1.2ln	<2		hot start