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Scope of Application

DZ47Z-63 DC Mini Circuit Breaker (similar to C45N MCB) is suitable for the circuit of AC 50 / 60Hz, rated voltage of 230 / 400V, rated current of 63A, or the circuit of DC voltage of 220V, rated DC current of 63A, to protect overload and short circuit, and infrequent transfer between circuits under normal circumstances, DC MCB also be used as the isolating switch for cut-off circuit to maintain circuit and equipment.
DZ47Z-63 DC miniature circuit breaker has the functions of overload protection, short circuit protection, control and isolation. DC MCB is mainly used in DC power supply system, ship electric power system and electric propulsion system, PV power system and other places.

Model and meaning

三、Selection guide

Product name Breaking capacity Pole Trip type Rated current

DZ47Z-63

DC Mini Circuit Breaker
(similar to C45N MCB)

 

4.5KA 2 C 20


1:1P
2:2P
3:3P
B:Type B
C:Type C
1:1A
2:2A
3:3A

63:63A

Power consumption per pole of DZ47Z-63 DC Mini Circuit Breaker (similar to C45N MCB)

Rated current In(A) Maximum power consumption per pole(W)
1~10 2
16~32 3.5
40~63 5

Main technical parameters of DZ47Z-63 DC Mini Circuit Breaker (similar to C45N MCB)

■ Rated current: 1,2,4,6,10,16,20,25,32,40,50,63 A
■ Frame rating: 63A
■ Poles: 1P / 2P / 3P / 4P
■ Rated operating voltage DC: 125V / 250V / 500V / 1000V
■ Impulse withstand voltage Uimp: 6kV
■ Quick closure: to ensure reliable work of the impact load, to extend the electrical life of the circuit breaker
■ Breaking capacity: 4.5kA
■ Current Limit Level: 3
■ Mechanical life: 10,000 times
■ Electrical life: 1000 times
■ Environmental operating temperature: -30 ℃ ~ 70 ℃
■ Resistance to heat and humidity: Class 2 (temperature 55 ℃, relative humidity 95%)
■ Elevation: not more than 2000M
■ Installation: no significant vibration and shock place, tunnel-type terminals, wiring of DC circuit breaker, please pay attention to polarity, modular structure, easily installed in the TH35-7.5 DIN standard rail, 1 ~ 32A: 2.5 N , 40-63A: 3.5N.
■ Wiring: 1 ~ 32A: 25mm ² and below, 40 ~ 63A: 35mm ² and below
■ Protection class: Ip20
■ Standards: IEC60898-2 / GB10963.2
■ Certification: CCC, CE
■ Tripping characteristics: Type C curve, instantaneous trip range (6.8 ~ 10.2) In, protect the normal load and power distribution cable; Type B curve, instantaneous trip range (4.4 ~ 6.6) In, protect the load of smaller short circuit current.

Pole 1P single-pole 2P 2 poles 3P 3 poles 4P 4 poles
Breaking capacity 4.5kA 4.5kA 4.5kA 4.5kA
Un(Rated voltage) 125V/250V 250V/500V 250V/500V 1000V
Unmax UL+/L- 125V/250V 250V/500V 250V/500V 1000V
Unmax UL/↓ 125V/250V 250V/500V 250V/500V 1000V

Remark: (1) L+ power supply positive pole, L- power supply negative pole; (2) + the circuit breaker positive pole, - circuit breaker negative pole; (3) In DC power supply "L-" is usually grounded, in the positive and negative power system, neutral pole "M" adopts ground installation

According to the type of instantaneous release

Tripping form AC range DC range
B 3In<I≤5In 4.4In<I≤6.6In
C 5In<I≤10In 6.8In<I≤10.2In

Rated short-circuit breaking capacity

Rated current (A) Pole Rated voltag (V) Rated short circuit current(A) Operation short circuit current (A)
1~63 1 220 3000 3000
2~4 4500 3000

Mechanical Electrical Life

Category Times Operating frequency(times/h) Rated current (A)
Electrical life 1000 240 1~32
120 40~63
Mechanical life 10000 240 1~63

Over-current protection characteristics (reference temperature 30 ℃)

No. Trip type Rated current(A) Initial state DC Set time Prosrective result Remark
a B、C 1~63 Cold 1.13In t≤1h Non tripping
b B、C 1~63 After the last 1.45In t<1h Tripping The current rise steadily to a fixed value within 5s
c B、C In≤32A Cold 2.55In 1s<t<60s Tripping
In>32A 1s<t<60s
d B 1~63 Cold 4In 0.1s≤t≤45s(In≤32A)
0.1s≤t≤90s(In>32A)
Tripping
C 17In 0.1s≤t≤15s(In≤32A)
0.1s≤t≤30s(In>32A)

e B 1~63 Cold 7In t<0.1s Tripping
C 15In

Current correction values at different ambient temperatures

Temperature(℃)
Corrected current value(A)
Rated current(A)
-35 -30 -20 -10 0 10 20 30 40 50 60 70
1 1.3 1.26 1.23 1.19 1.15 1.11 1.05 1 0.96 0.93 0.88 0.83
2 2.6 2.52 2.46 2.38 2.28 2.2 2.08 2 1.92 1.86 1.76 1.66
3 3.9 3.78 3.69 3.57 3.42 3.3 3.12 3 2.88 2.79 2.64 2.49
4 5.2 5.04 4.92 4.76 4.56 4.44 4.16 4 3.84 3.76 3.52 3.32
6 7.8 7.56 7.38 7.14 6.84 6.6 6.24 6 5376 5.64 528 4.98
10 13.2 12.7 12.5 12 11.5 11.1 10.6 10 9.6 9.3 8.9 8.4
16 21.12 20.48 20 19.2 18.4 17.76 16.96 16 15.36 14.88 14.24 13.44
20 26.4 25.6 25 24 23 22.2 21.2 20 19.2 18.6 17.8 16.8
25 33 32 31.25 30 28.75 27.75 26.5 25 24 23.25 22.25 21
32 42.56 41.28 40 38.72 37.12 35.52 33.92 32 30.72 29.76 28.16 26.88
40 53.2 51.2 50 48 46.4 44.8 42.4 40 38.4 37.2 35.6 33.6
50 67 65.5 63 60.5 58 56 53 50 48 48.5 44 41.2
63 83.79 81.9 80.01 76.86 73.71 70.56 66.78 63 60.48 58.9 55.44 52.29

Current correction factor used at different altitudes

Trip type Rated current (A) Current correction factor Example
≤2000m (2000~3000)m ≥3000m
B、C 1、2、3、4、6
10、15、20、25
32、40、50、63
1 0.9 0.8 Rated current used after
the product of rated current
of 20A derates capacity
in 3000m:0.8x20=16A

Wiring: 25mm² and below for wire connection, wiring method is screws to tighten the wiring, the torque is 2.5N · 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

五、Tripping characteristic curve

六、Structural features

■ High rated short-circuit breaking capacity.
■ Double wiring function, the outlet terminal can easily connect with the standard bus and hard-soft wire, incoming terminal can connect with the hard-soft wire.
■ With red and green safety instructions, higher security.
■ Mechanism with the energy storage operation, rapid contact closure, overcomes adverse effect of speed of the manually operated handle, and greatly improves the product life.
■ The terminals have the forked tail with function of preventing false wiring, which improves wiring efficiency and reliability.
■The DC MCCB can be used with a variety of modular accessories, such as S9, V9, XF9, XF9J.
■ Case and other plastic parts are made of plastic of high flame retardant, high temperature and impact resistant.

七、Outline and installation dimensions


Keywords: C45N,C45N MCB, DC MCB,dc mini Circuit Breaker

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