TX7-63Z DC Miniature Circuit Breaker
Type and Meaning
Specification Parameters
Work Environment and Installation Conditions
◎Ambient temperature : -35℃~+70℃
◎ Relative humidity: ≤95%
◎ Pollution level: class 2
◎ Elevation : ≤2000 m
Main Parameters and Technical Performance
◎Main Classifications
1.According to the rated current（In）：1A、2A、3A、4A、6A、10A、16A、20A、25A、32A、40A、50A、63A
2.According to the pole numbers：1P、2P、3P、4P
3.According to the instantaneous tripping pattern：：C Type（8-12）ln
◎Technical Parameters
1.Rated short circuit capacity
| Rated current(A) | Pole numbers |
Rated voltage(V) | Rated short circuit capacity | |
| S | H | |||
| 1~63 | 1 | DC250 | 6000A | 10000A |
| 2 | DC500 | 6000A | 10000A | |
| 3 | DC750 | 6000A | 10000A | |
| 4 | DC1000 | 6000A | 10000A | |
2.Mechanical and Electrical Life（times）
a.Electrical life（times）：8000
b.Mechanical life（times）：20000
3.Over Current Protection Feature under the Condition of（28-32）℃ Environment Temperature
| Test | Form | Test current | lnitial state | Time limit of tripping or not | Expected results | Notes |
| a | 1.05In | Cold state a | t<1h | Not tripping | ||
| b | 1.30In | Follow on the test a to process |
t<1h | Tripping | ||
| c | c | 8In | Cold state a | 0.2s<t≤15s (In≤32A) 0.2s<t≤ 30s (In>32A) |
Tripping | Current rises steadily to the predetermined value within 5 seconds |
| d | 12ln | Cold state a | t <0.1s | Tripping |
Note:a term“cold state”refers to the condition without load before test under benchmark calibration temperature.
4.Rated Impulse Withstand Voltage：4KV
◎Current correction for different ambient temperature
| Current correctior for different ambient temperature |
Current correction for different ambient temperature | |||||||||||
| -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 | 4.4 | 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 | 5.76 | 5.64 | 5.28 | 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 | 33.93 | 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 | 46.5 | 44 | 41.5 |
| 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 coefficient at different elevations
| Tripping type | Rated current(A) | Current correction coefficient | Sample | ||
| ≤2000m | 2000~3000m | ≥3000m | |||
| C | 1、2、3、4、6、 10、16、20、 25、32、40、50、 63 |
1 | 0.9 | 0.8 | 10A rated current product after use 2500m reducing capacity, the rated current is:0.9×10=9A |
◎Table 1 for tripping characteristic curve
◎Wiring:Suitable for 25mm² wire connection，terminal tightening torque is 2.5N.m
| Rated current in(A) | Nominal cross-section area of copper wire (mm²) |
| 1~6 | 1 |
| 10 | 1.5 |
| 16、20 | 2.5 |
| 25 | 4 |
| 32 | 6 |
| 40、50 | 10 |
| 63 | 16 |
◎Power consumption of per pole
| Rated current In(A) | Max power consumption of per pole(W) |
| 1~10 | 2 |
| 16~32 | 3.5 |
| 40~63 | 5 |
◎Product characteristics
1.Superior breaking capacity.
2.Double wiring function of wire and busbar.
3.Storage energy operation，fast closing，long lifetime
4.Convenient installation and disassembly.
5.On-off instruction of contacts，improved safety performance.
6.Green environmental protection and energy saving.
Wiring Method
◎Wiring Diagram Instructions
1.Power supply positive pole，power supply negative pole
2.L+load positive pole，L-load negative pole
3.Forbid to connect power positive and negative pole inversely.
4.Rated volate：
1P：250V；2P：500V；
3P：750V；4P：1000V。
Outline and Mounting Dimensions(Unit:mm)
Ordering Notice
◎Product model number and name，e.g：
TX7-63Z（H）DC miniature circuit breaker.
◎Instantaneous release pattern and ratedcurrent，e.g:C20.
◎Rated voltage，e.g:DC500V
◎Ordering number，e.g：500 sets
◎Ordering example：
TX7-63Z（H）/20A DC500V，500sets
