Miniature Circuit Breaker

Products Detail
I.Scope of Application

DZ47-125(NC)125A series high current MCB is applied to illumination and power distribution system, to provide protection against short-circuit and overload. It is characterized by pleasing outlook, light weight, reliable performance, high breaking capacity, fast tripping and din-rail mounted method. Its housing and other components are made of high inflammable resistance and impact resistance plastics for long service life. It is mainly used in lines of AC 50/60Hz, rated voltage of single pole up to 230A, two, three or four poles up to 400V, rated current 50A~125A for overload or short circuit protection. It can also be used for infrequent switchover of illumination circuit and electric appliances under normal condition. It can be assembled with other accessories. Like under-voltage tripping device or shunt release. This switch could also used as disconnection switch to provide under-voltage protection or remote disconnection for lines.
DZ47-125 complies with Standard IEC60947-2,GB14048.2 & GB10963.

II. Types and Specifications

DZ-MPCB, /Design Code/ Function Code/ Frame Size /Usage Code (C for power distribution, D for motor protection)/ Number of Poles

III. Structural Features

DZ47-125 MCB can be din-rail (width: 35mm) mounted. Miniature size with high breaking capacity. Have visible indicator to show the closing of contacts. Used for line isolation. Adopt TH35-7.5 type standard steel din-rail mounting method.
VII. Main Parameters and Technical Performance

Main types:
a: Type C for lighting power distribution protection. (instantaneous trip 5~10In)
b: Type D for power load industrial distribution protection.( instantaneous trip 10~16In)
Rated current: 50A,63A,80A,100A,125A
Number of poles: 1P, 2P, 3P, 4P
Mounting method: flush mounted. (din-rail mounted also is available)
Rated short-circuit breaking capacity: 10KA.
Power frequency withstand voltage: after humidity thermal test, within 1 minute of power-frequency voltage-withstand test(with voltage of 2500V), no insulation flashover or breakdown of the circuit breaker occurs.
Mechanical life(times): 2000. Electric life: 6000.
Anti wet and heat: Class 2(RH is 95% when ambient temperature is 55ºC)
Wiring: clip connection terminal. CSA of attached cable can up to 50mm²

Rated current(A)	Poles (P)	Rated voltage(V)	Rated short-circuit breaking capacity
			Test expected current(A)	Test power factor
50,63,80,100,125	1	230/400	10000	0.45~0.50
	2,3,4	230/400	10000	0.20~0.25
	2,3,4,	400	10000	0.45~0.50

Test current	Rated current	Appointed time	Initial state	Expected result
1.05ln	≤63A	t≤1h	Cold state	Non tripping
	>63A	t≤2h		Non tripping
1.30ln	≤63A	t≤1h	Thermal state	Tripping
	>63A	t≤2h		Tripping
2.0ln	All values	1~360s	Cold state	Tripping
5ln(C type),10ln(D type)	All values	t≤0.1s	Cold state	Non tripping
10ln(C type),20ln(D type)	All values	t<0.1s		Tripping

VIII. Outline and Installation Dimension

IX. Order Notice
The following information shall be provided in ordering:
Product Name and Type: DZ47-125 MCB/ DZ47-125 circuit breaker.
Instantaneous Tripping Rated Current: Like, 100A.
Number of poles: 4P
Order Quantity: Like ,36pcs.
Ordering Example: DZ47-125 MCB, 21P,125A,855pcs

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