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DZ47-125 Miniature Circuit Breaker
  • DZ47-125 Miniature Circuit BreakerDZ47-125 Miniature Circuit Breaker
  • DZ47-125 Miniature Circuit BreakerDZ47-125 Miniature Circuit Breaker
  • DZ47-125 Miniature Circuit BreakerDZ47-125 Miniature Circuit Breaker
  • DZ47-125 Miniature Circuit BreakerDZ47-125 Miniature Circuit Breaker

DZ47-125 Miniature Circuit Breaker

High quality customized products DZ47-125 Miniature Circuit Breaker from China suppliers and manufacturers, XUCKY Electric has been specialized in Modular Electrical Terminal Equipment for many years. Our products have a good price advantage and cover most of the South America, Middle East, Africa, Southeast Asia markets. We look forward to becoming your long-term partner in China.

Scope of Application


The DZ47-125 Miniature Circuit Breaker is a 125 amp circuit breaker that is used for overload and short-circuit protection in AC 50Hz/60Hz circuits. It has a long service life and can be used in lighting and power distribution systems. The DZ47-125 has a plastic case and supports leakage, overload, and short circuit protection. It is designed for quick and easy installation and can be installed in a few minutes.


Protections and FunctionsShort circuit protection


  • Overload protection
  • (overcurrent protection)
  • Isolation function
  • Auxiliary control function




DZ47-125 Miniature Circuit Breaker (125 amp Circuit Breaker) with protection of short circuit and overload, suitable for lighting and power distribution system and power distribution system of motor. DZ47-125 is cute, light and beautiful, and it has functions of reliable performance, high breaking capacity and quick tripping. It is mounted on the rail. The case and component are made of impact-resistant and highly fire-retardant plastic. DZ47-125 MCB has a long service life, and is mainly used for overload and short-circuit protection in AC 50Hz/60Hz circuits with voltage of 230V for single-pole and voltage of 400V for two-pole,three-pole and four-pole, and in normal condition, DZ47 MCB can switch infrequently the electric equipments and lighting circuits. DZ47 MCB can be installed with undervoltage release, shunt release and other accessories, also used for isolating switches and under-voltage protection and remote disconnection of circuit. DZ47-125 MCB (125 amp Circuit Breaker) meets the standards of IEC60947-2, GB14048.2 and GB10963.


Model and meaning


Product Model

Pole

Trip type

Rated current

DZ47-125

1P

C(Routine)

125

 

1:1P
2:2P
3:3P
4:4P

C:Type C
D:Type D

63:63A
80:80A
100:100A
125:125A


Normal operating conditions and installation conditions

3.1 The ambient air temperature: -5℃~+40℃, and the average temperature in 24h below +35 ℃.

3.2 The installation site altitude should not exceed 2000m.

3.3 The location of the air relative humidity in the highest temperature + 40℃ for not more than 50%; For example, + 20℃ for 90% . And consider the temperature changes in product on the surface of the gel.

3.4 Pollution degree: 2.

3.5 Installation conditions: Installed in a place without significant impact, vibration, non-hazardous (explosive) medium. And in no explosion danger media, and medium without enough to corrode the metal and destruction of gas and electric insulation dust place, in no rain and snow hit place.

3.6 Installation: TH35-7.5 rail installation, installation in the distribution box, power distribution cabinet or box, the installation adopts vertical installation, The inclination of the mounting plane to the vertical plane should not exceed ± 5 °, handle-up means power-on.

3.7 Installation category: Class Ⅲ.


Technical parameters

■ Rated current: 63A, 80A, 100A, 125A

■ Rated operating voltage: 230 / 400V AC

■ Breaking capacity: 10kA

■ Indication window

□ Mechanical contact indication window, reliable cut-off instruction

□ The window is green and the contact is in the open state. The window is red and the contact is in the closed state

■ Impulse withstand voltage: 4kV

■ Rated insulation voltage: 500V

■ Accessories

□ OF auxiliary contact, MX + OF shunt release

■ Tripping characteristics

□ C-type curve: To protect conventional load and distribution cables, magnetic trip unit setting in the range of action 8.5In ± 20%

□ D-type curve: protect impact load of the large starting current (such as transformers, etc.), magnetic trip unit setting in the range of action 12In ± 20%


Current grade(A)

Screw

Rated torque(N.m)

Ultimate torque(N.m)

Standard torque(N.m)

63~125

M7

4.0

5.5

3.5


The circuit-breaker has a high current-limiting capability to limit the destructive energy greatly caused by short circuit. Its current-limiting characteristics shown in Figure 1


Over-current protection characteristics (reference temperature 35 ℃)

No.

Rated current(A)

Initial state

Test current

Set time

Prosrective result

Remark

a

In=63

Cold

1.05In

t≤1h

Non tripping

-

In>63

Cold

1.05In

t≤2h

Non tripping

-

b

In=63

Then after the last test

1.30In

t<1h

Tripping

The current rise steadily to
a fixed value within 5S

In>63

Then after the last test

1.30In

t<2h

Tripping

c

In>63

Cold

8In

t≤0.2s

Non tripping

-

12In

t<0.2s

Tripping

-


The current correction value used at different ambient temperatures

temperature(℃)
Corrected current value
Rated current(A)

-35

-30

-20

-10

0

10

20

30

40

50

60

70

63

90.40

88.52

84.75

80.33

76.55

72.45

67.73

63

57.65

51.98

46.31

40.95

80

114.8

112

106.8

101.6

96.4

90.8

80

80

74

67.6

60.4

53.2

100

143.5

140.5

134.5

127.5

121

113.5

107.5

100

92.5

84.5

75.5

66.5

125

178.78

173.75

164.38

156.25

148.75

140.63

135

125

116.25

107.5

97.5

85


Current Correction Coefficient Used at Different Altitudes of DZ47 125 amp Circuit Breaker

Rated current(A)

Correction coefficient at Different Altitudes

≤2000m

(2000-3000)m

≥3000m

63,80,100,125

1.0

0.9

0.8


Mechanical Electrical Life of DZ47 125 amp Circuit Breaker

Rated current(A)

Number of operating cycles

on-load(time)

no-load(time)

63,80,100

1500

20000

125

1000

20000


Other

Structural features of DZ47-125 125 amp Circuit Breaker

High rated short-circuit breaking capacity.

With red and green security instructions, higher security.

With energy storage mechanism operation, the contact close quickly, to overcome the adverse effects of the speed of the manually operated handle, greatly improving the product's service life.


Wiring: connection with the wire of (16 ~ 50) mm² , the terminal tightening torque is 3.5N · m.


Rated current In(A)

Copper conductor nominal cross-sectional area(mm²)

63

16

80

25

100

35

125

50


Type C tripping characteristic curve of DZ47-125 MCB


Outline and installation dimension





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