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SCOPE OF APPLICATION

TXC65-63 6KA Circuit Breaker (also called 6KA Household MCB, similar to CHINT NB1-63) is used for the circuit of AC 50Hz, rated voltage of 110V/230/400V, rated current of 1A, 2A, 3A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 60A, 63A to protect overload and short-circuit, as well as use for normal circumstances of the infrequent circuit conversion, also be used as the isolating switch for cut-off circuit to protect circuit and equipment.
6KA Circuit Breaker (6KA Household MCB) are used for industrial, commercial, high-rise and civilian residential and other places.Meet the standards: GB10963.1, IEC60898-1.


Current Correction Factors Used at Different Altitudes


curve Rated current Current correction index Example
≤2000m (2000~3000)m ≥3000m
B、VC 1、2、3、4、6
10、15、20、25
32、40、50、63
  Rated current 20A products inUsage amount after derating at 3000 metersThe constant current is: 0.8x20=16A


wire installation


Current grade (A) Screw Rated torque(N.m) Rated torque(N.m) Standard torque(N.m)
10-25 M5 2.5 4.5 2.0


MAIN TECHNICAL PARAMETERS

Rated Current 1, 2, 3, 4, 6, 10, 16, 20, 25, 32, 40, 50, 63A
Poles 1P,2P,3P,4P,1P+N,3P+N
Rated working voltage 230V~(1P,1P+N):400V~(2~4P,3P+N)
Rated short-circuit breaking capacity 6KA
Rated Impulse Withstand Voltage(1.2/50)Uimp 6KA
Indication Window Green Window(Disconnected),Red Window(Closed)
Impulse withstand voltage 4kV
Protection Class IP20
Thermo - Magnetic Release Characteristic B-Curve (3-5In),C-Curve (5-10In),D-Curve (10-14In)
Electrical Life 10000
Mechanical Life 20000
Reference Temperature For Setting Of Thermal Element 30℃
Ambient Temperature -5°C~+40°C
Terminal Connection Type Phillips Screws
Adapter Cable 6-63A 1-25mm² 16-3AWG | 80-125A 8-35mm² 16-2AWG
Tightening Torque 3.0N.M
Attachment OF auxiliary contact, SD alarm contact, MX+OF shunt release, MV overvoltage release, MN undervoltage release, MV+MN overvoltage release
Installation method TH35-7.5 type steel installation rail installation
Combination With Accessories Auxillary Contact
Auxillary Contact Yes
Alarm Contact Yes
Shunt Release Yes
Under Voltage Release Yes


Rated short-circuit breaking capacity


Rated current Tripping curve
B C D
1-40A 6KA 6KA 6KA
50A、63A 6KA 6KA 6KA


Mechanical and electrical life


Category Times Operation frequency (times/hour) Rated current
Electrical life 10000 240 1-32A
120 4-63A
Mechanical life 20000 240 1-63A


Overcurrent protection characteristics (reference temperature 30℃)


No. Curve Current Starting state DC Times Result
a B、C、D 1~63 Cold 1.13ln t≤1h No-trip
b B、C、D 1~63 Immediately after the preceding item 1.45ln t<1h Trip
c B、C、D In≤32A Cold 2.55ln 1s<t<60s Trip
In≤32A 1s<t<60s
d B 1~63 Cold 3ln t≤0.1s No-trip
5ln Trip
C 5ln No-trip
10ln Trip
D 10ln No-trip
14ln Trip


Power consumption per pole of circuit breaker


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


TRIPPING CHARACTERISTIC CURVE -- B C D TYPE



WIRING

It is suitable for wire connection of 25mm² and below. The wiring method is to press the connection withscrews, and the torque is 2.5N·m.


Rated current (A) Minimum Adapter Copper Wire
1-6 1
10 1.5
16、20 2.5
25 4
32 6
40、50 10
63 16


TEMPERATURE COMPENSATION

When the ambient temperature is not a benchmark of 30 degrees , the reference correction factor is as folows


Ambient Temperature -20℃ -10℃ 0℃ 10℃ 20℃ 30℃ 40℃ 50℃ 60℃
Current Correction Coefficient 1.25 1.2 1.15 1.10 1.05 1.00 0.95 0.90 0.85


STRUCTURAL FEATURES

Rated short-circuit breaking capacity is high.

Double wiring function, the outgoing end can be easily connected to standard busbars and soft and hard wires, and the incoming end can be connected to soft and hard wires.
With red and green safety instructions, the safety is higher.
With energy storage mechanism operation, the contacts are quickly closed, which overcomes the adverse effects caused by the speed of manual operation of the handle, and greatly improves the service life of the product.
The terminal has a dovetail with an anti-misconnection function to improve wiring efficiency and reliability.
The shell and other plastic parts are made of high flame retardant, high temperature and impact resistant plastic.
Applicable working conditions and working environment:
Ambient temperature: -35℃~+70℃. When the ambient temperature is not 30°C of the reference, the current value is corrected with reference to the coefficients in Table 7.

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 4.4 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 20.84 20 19.2 18.4 17.76 16.69 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 46.5 44 41.5
63 83.79 81.9 80.01 76.68 73.71 70.56 66.78 63 60.48 58.9 55.4 52.29


CONNECTION

Rated current (A) Minimum Adapter Copper Wire
6 1 MM2/17AWG
10 1.5 MM2/16AWG
16 1.5 MM2/16AWG
25 2.5 MM2/13AWG
32 4 MM2/11AWG
40 6 MM2/10A
50 10 MM2/7AWG
63 16MM2/5AWG


OUTLINE AND INSTALLATION DIMENSIONS



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