Mini Circuit Breaker

Products Detail
I.Scope of Application
DZ30-32 (DPN) MCB ("phase + neutral" circuit breaker) is applicable to single phase residential circuits with frequency 50/60Hz, rated voltage 230V, to protect protection for circuits against overload and short circuit. The product is characterized by high breaking capacity and small size, with width is 18mm. Its zero line and live line will be cut off at the meanwhile, to avoid wiring error between the two lines or any damage & fire hazard caused by zero line. It is the most ideal switch for power distribution protection in current residential buildings. This product is produced as per IEC60898 and GB10963.1.

II. Types and Specifications
MPCB/ Design Code/ Frame Size (rated current)

III. Structural Features
DZ30 series DPN circuit breaker is characterized by high breaking capacity, miniature size and compact structure. Width of two poles is in one module (18mm). It has two poles(P+N), with merit of cutting off phase line & neutral line at the same time. Its N pole can be first switched on last disconnected, which can avoid wiring error between the two lines or physical dangers caused by N lines.
Adopt wire connection. Maximum circular copper conductor: 10mm².
Adopt TH35-7.5 type standard steel din-rail mounting method.

IV. Structural Characteristics
DZ30 MCB: small size, compact structure, has 2 poles (1P-N) within 18mm width, which is half of DZ47 series two poles breaker. The price is more competitive than similar products
Both its housing and some function parts are made of plastics with high inflammable/ temperature/ shock resistance.
Convenient and time saving din-rail mounting method. Direct installation with zero line, to avoid potential electric shock hazard caused by the wiring error.

V. Main Parameters and Technical Performance
Main Specification:
Rated Current: 6A,10A,16A,20A,25A,32A.
Number of Poles: 1P+N (2 poles circuit breaker)
Instantaneous tripping type: C type(5ln~10ln).
Operated short circuit capacity: 4500A
Mechanical electric Life (times): >4000

Frame size lnm(A)	Rated current ln(A)	Poles (P)	Rated voltage Ue(V)	Breaking capacity lcn(A)
32	6,10,16,20,25,32	1P+N	230	4500

test	Rated current ln	Test current	Initial state	Limit time	Expected result	Ambient temperature	Remark
a	≤32A	1.13ln	Cold state	t≥1h	Non-tripping	30ºC~35ºC
b		1.45ln	Follow item a	t<1h	tripping		Current stably increase to specified value with 5s
c		2.55ln	Cold state	1s	tripping
d		5ln	Cold state	t≥0.1s	Non-tripping		Making current via closing auxiliary switch.
e		10ln	Cold state	t<0.1s	tripping

VI. Outline and Installation Dimension

VII. Distinction between 1P MCB and DZ30 MCB
1P MCB is live line-in circuit breaker, but no zero line in. DPN is circuit breaker with live line and zero line are in, which can cut off both lines simultaneously. From users' perspective, it means higher safety and easier check.
2P MCB is also double in double out. i.e., live line and zero line all is in circuit breaker. But the width of 2P MCB is twice than that of DPN circuit breaker.

VIII. Order Notice

The following information shall be provided in ordering:
Product Name and Type: DZ30-32 MCB/ DZ30 MCB.
Instantaneous Tripping Rated Current: Like, 32A.
Order Quantity: Like ,100pcs.

Ordering Example: DZ30-32 MCB, 20A, 1800pcs.

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