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Scope of application

DZ47-B63 Miniature Circuit Breaker(type B MCB), dedicated to the electric motorcycle, and mainly used for over-load and short-circuit protection in DC circuits with rated voltage of 12V-64V for single-pole and rated current of 63A. In normal condition, it can switch infrequently the electric equipments and lighting circuits. This DZ47-B63 type B Circuit Breaker complies with the standards of GB10963.1 and IEC60898-1.

Model and meaning

The main parameters and technical performance

Main Specifications of DZ47-B63 type B Circuit Breaker:
According to the rated current: 1A, 2A, 3A, 4A, 5A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A.
Rated working voltage: 48V, 64V, 72V
According to the poles (POLE): 1P. Single-pole
According to the form of circuit breaker instantaneous release: Type B Circuit Breaker (3ln ~ 5ln)
Mechanical electrical life: a. Electrical life: not less than 4000 times; b. Mechanical life: not less than 10000 times.

No. Rated current In(A) Initial state Test current Set time Prosrective result Remark
a 1~63 Cold 1.13In t<1h Non tripping
b 1~63 Then after Test A 1.13In t<1h Tripping The current rise steadily to
a fixed value within 5S
c 1~32 Cold 2.55In 1s < t < 60s Tripping
40~63 Cold 2.55In 1s < t < 60s Tripping
d 1~63 Cold 3In t≤0.1s Non tripping

Type B MCB

e 1~63 Cold 5In t≤0.1s Tripping

Type B MCB

Wiring: 25mm² and below for wire connection, wiring method is screws to tighten the wiring, the torque is 2.0N · m

Rated current In(A) Copper conductor nominal cross-sectional area(mm²)
1~6 1
10 1.5
16~20 2.5
25 4
32 6
40~50 10
63 16

Outline and installation dimensions of DZ47-B63 type B Circuit Breaker



Keywords: type b Circuit Breaker,type b MCB

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