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Shanghai Taixi Electric Co., Ltd
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Shanghai Taixi Electric Co., Ltd

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    service@taixiele.com

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    13356192265

  • Address

    Shangzhai Industrial Zone, Liushi Town, Yueqing City, Zhejiang Province

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DZ47-63 miniature circuit breaker

NegotiableUpdate on 07/09
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Overview

1、 Scope of application

Product Details

1、 Scope of application

DZ47-63 miniature circuit breakerThe DZ47 air switch is mainly suitable for circuits with AC 50/60Hz, rated operating voltage of 230V/400V and below, and rated current up to 63ACircuit breakerMainly used for overload and short circuit protection of electrical circuits and equipment in modern buildings, and also suitable for infrequent operation and isolation of circuits. Structural features: The DZ47-63 miniature circuit breaker consists of a plastic casing, operating mechanism, contact arc extinguishing system, trip mechanism, etc. The shell is made of high flame retardant and high-strength special plastic, with strong impact resistance and light weight. The components of the circuit breaker operating mechanism are made of high-strength plastic products, which ensure sensitivity and reliability while obtaining the lowest moment of inertia, making the time from the start of a short circuit fault to the action of the trip mechanism very short. The trip mechanism consists of two parts: a bimetallic overload inverse time trip mechanism and a short-circuit instantaneous electromagnetic mechanism. The contact arc extinguishing system adopts special arc angles and aisle extinguishing chambers, and has significant current limiting characteristics. Mainly used for overload and short circuit protection of lighting, distribution lines, and equipment in office buildings, residential buildings, and similar structures. It can also be used for infrequent line switching under normal circumstances.
This product meets the requirements of standards such as IEC60898 and GB10963.1.
The DZ47-63 miniature circuit breaker (DZ47 air switch) produced by Taixi has passed the national CCC certification and CE certification.

2、 Model and its meaning


PRODUCT MODEL number of poles Release type Rated current
DZ47-63 1P c 63

1p

2p

3p

4p

B: Type B

C: Type C

D: D-type


1:1A 10:10A 32:32A

2:2A 16:16A 40:40A

3:3A 20:20A 50:50A

6:6A 25:25A 63:63A

3、 Normal working conditions and installation conditions

3.1 The upper limit of the ambient temperature shall not exceed+40 ℃, the lower limit shall not be lower than -5 ° C, and the average temperature over 24 hours shall not exceed+35 ° C.
3.2 The altitude of the installation site should not exceed 2000m.
3.3 The relative humidity of the atmosphere shall not exceed 50% when the ambient air temperature is+40 ℃, and higher relative humidity is allowed at lower temperatures; For example, reaching 90% at+20 ℃. Special measures should be taken for occasional condensation on the product due to temperature changes.
3.4 Pollution level: Level 2.
3.5 Installation conditions: Installed in a location without significant impact or vibration, and in a medium without danger (explosion).
3.6 Installation method: TH35-7.5 installation rail is used for installation.
3.7 Installation category: Level II and III.
3.8 Wiring: Suitable for wire connections of 25mm2 and below.
3.9 Wiring method: Use screws to tighten the wiring with a torque of 2.0N · m.

4、 Main parameters and technical performance

Main specifications of DZ47-63 miniature circuit breaker (DZ47 air switch):
Divided by rated current ln: 1A, 3A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A.
Divided by Polarity (POLE): 1P. Unipolar; 2P. Two poles; 3P. Three poles; 4P. Quadrupole.
According to the form of instantaneous release of circuit breakers: a. B type (3ln~6ln); b. Type C (5ln~10ln); c. D-type (10ln~20ln).
Mechanical and electrical life: The circuit breaker is tested at a frequency of 120 cycles per hour (>32A) or 240 cycles per hour (≤ 32A) to make and break rated currents at a specified rated voltage, with a power factor of 0.85~0.9. Its electrical life is 4000 cycles and mechanical life is 10000 cycles.

5、 Technical parameters

DZ47-63 miniature circuit breaker (DZ47 air switch) rated short-circuit capacity

Release type Rated current Rated short-circuit breaking capacity A COSΦ
C 1≤In≤40 6000 0.65~0.70
C 40<In≤63 4000 0.75~0.80
D 1≤In≤63 4000 0.75~0.80

Overcurrent protection characteristics of circuit breaker, under ambient temperature of 30 ℃~35 ℃

Serial Number Release type Rated current In Test current A appointed time Expected results Initial state
1 C、D all values 1.13In t≤1h Do not release cold state
2 C、D all values 1.45In t<1h trip Immediately following the previous item
After the experiment, proceed
3 C、D ≤32 2.55In s<t<60s trip cold state
>32 1s<t<120s
4 C all values 5In t≤0.1s Do not release cold state
D 10In
5 C all values 10In t≤0.1s trip cold state
D 20In

Temperature compensation coefficient of circuit breaker

Rated current
In(A)
Temperature compensation coefficient of DZ47-63 miniature circuit breaker at different temperatures
-10℃ 0℃ 10℃ 20℃ 30℃ 40℃ 50℃ 55℃ 60℃
1~6 1.20 1.14 1.09 1.05 1.00 0.96 0.80 0.75 0.70
10~32 1.18 1.12 1.08 1.04 1.00 0.96 0.92
0.88 0.84
40~63 1.16 1.12 1.07 1.03 1.00 0.97 0.87 0.83 0.80

Correction factors for current used by circuit breakers at different altitudes

Release type Rated current ≤2000m 2000~3000m ≥3000m give an example
C、D 1~63A 1 0.9 0.8 The rated current of the product is 32A
Used after reducing the capacity to 3200m
Current: 0.8 × 10=8A

Trip characteristic curve of DZ47-63 miniature circuit breaker

C-type release characteristic curve

D-type trip characteristic curve

Rated current In (A) Nominal cross-sectional area of copper wire (mm ²)
1~6 1
10 1.5
16~20 2.5
25 4
25 4
40~50 10
63 16

6、 Appearance and installation dimensions