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Scope of Application

TXC65LE-63 Residual Current Circuit Breaker (hereinafter referred to as ELCB breaker) is used for the line of AC 50Hz, rated voltage of 400V, rated current of 50A, as leakage and overload protection for home and similar purposes, to prevent the fire or the personnel casualty caused by circuit leakage or electric shock, also to provide over-voltage protection for excessively rised voltage caused by the grid fault.
This ELCB breaker complies with standards of IEC61009-1: 1996, GB16917.1 "Residual current operated circuit-breakers with overcurrent protection for household and similar purposes (RCBO) Part 1: General rules" and other standards.
Common models of TXC65LE series ELCB breaker includes, they are current action type electronic leakage circuit breakers, consist of the TXC65 MCB and leakage release. When leakage or personal electric shock happen in the protection circuit, as long as the leakage current I △ reaches the operating current value, the circuit breaker will immediately take action to cut off the power supply, which play a role in leakage and electric shock protection, while ELCB breaker can also protect overload and short-circuit in the circuit.

Models and Specifications

Normal operating conditions and installation conditions

■ Altitude is not more than 2000 meters;
■ Ambient air temperature: -5℃~40℃, and average temperature in 24h below +35℃;
■ 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;
■ Installation conditions: installed in the place without impact vibration and invasion of rain and snow; no explosion hazard in the medium, and medium without enough to corrode the metal and destruction of gas and electric insulation dust;
■ Pollution degree: 2;
■ Installation category: Ⅲ;
■ Electromagnetic environment is Environment B;
■ The external magnetic field of installation site in any direction should not exceed 5 times of the geomagnetic field;
■ TH35-7.5 rail installation, installed 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.

Normal operating conditions and installation conditions

■ Rated current: 6,10,16,20,25,32,40,50,63 A
■ Rated working voltage: 230 / 400V AC
■ Rated insulation voltage: 500V
■ Rated residual operating current: 30,50,75,100,300 mA
■ Trip indicator: TXC65LE residual current action on the trip instructions, the reset button pops up for the leakage trip
■ Manual control: The handle allows two reset modes
  □ Overcurrent fault: The circuit breaker and the residual current operating device are simultaneously reset
  □ Leakage fault: the residual current action device first reset, after the circuit breaker reset
■ Mechanical life: 20,000 times
■ Electrical life: 10000 times
■ Wiring
  □ 6 ~ 32A, can be connected to 16mm ² and the following wires
  □ 40 ~ 60A, can be connected to 25mm ² and below the wire
■ Meet the standard: IEC61009-1 / GB16917.1
■ Compliance with certification: CCC certification
■ Tripping characteristics
  □ C-shaped curve
Protects conventional loads and distribution cables
Tripping characteristics: instantaneous trip range (5 ~ 10) In
  □ D-shaped curve
Protection of the starting current of the impact of large load (such as transformers, etc.)
Tripping characteristics: instantaneous trip range (10 ~ 14)

Frame rated current Inm(A) Pole Plus the neutral line Rated Current
Rated residual operating current
Rated residual non-operating current(mA) Rated short - circuit breaking capacity Rated residual on - breaking capacity(A) Overcurrent instantaneous release type
Voltage(V) Make-break capacity cosΦ
63 1 N 6,10,16,20
230 6000A 0.8 4800 B、C、D
3 N
1 N 40,50,63 30、50、
230 6000A 0.8 4800 B、C、D
3 N


Current grade(A) Screw Rated torque(N.m) Ultimate torque(N.m) Standard torque(N.m)
6~32 M4 2.0 3.0 1.2
40~60 M5 2.5 4.5 2.0

Breaking capacity

Rated Current
Tripping curve
6~40 6 4
50、60 4 4

Protection characteristics

1、Leakage circuit breaker has function of leakage protection, and also protect excessive rise of voltage caused by power failuren. Overvoltage setting value Uvo=280V, Setting range Uvo±5%(Only used in lines with rated voltage of AC 230V).
2、Overcurrent release protection characteristics

Release type C D Tripping time
Thermal tripping
I1 1.13In 1.13In ≥1h
I2 1.45In 1.45In <1h
Magnetic trip I4 5In 10In ≥0.1s
I5 10In 20In <0.1s
In(A) I△n(A) Breaking time when the residual current is equal to the following value(s)
I△n 2I△n 5I△n 5A,10A,20A,50A,

0.04 0.04

Note: a. 5A, 10A, 20A, 50A, 100A, 200A, 500A of the test only to verify that the action is greater than the current instantaneous trip range lower limit of current value is not tested.
B. The current value at which IΔt is equal to the lower limit of the instantaneous trip range of the overcurrent of type C or D is to be tested.

NO. Rated CurrentIn(A) Trip type Initial state Test current set time t Expected result Remark
a 6~60 C、D Cold 1.13In t≤1h Non tripping
b 6~60 C、D Immediately following the last test 1.45In t<1h tripping

The current rise steadily

to a fixed value within 5S

c 6~60 C、D Cold 2.55In 1s<60s(in≤32a)<> tripping
d 6~60 C、D Cold 5In t≤0.1s Non tripping The current is recieved by closing the auxiliary switch
C、D 10In t<0.1s tripping
C、D 10In t≤0.1s Non tripping The current is recieved by closing the auxiliary switch
C、D 16In t<0.1s tripping

Mechanical and Electrical Life

Item Times(times) Operation frequency
Electrical Life 2000,cosφ=0.85~0.9 In≤25A,240 times/h;In>25A,120次/h
Mechanical Life 10000

Current Correction Coefficient at Different Ambient Temperatures

Temperature ℃ -15 -5 0 10 20 30 40 55
Rated current correction factor 1.19 1.15 1.13 1.06 1.05 1 0.96 0.89

Wiring: wire of 25mm² and below for connection, wiring method is screws to tighten the wiring, the torque is (1.5~2.0)N · m.

Rated Current In(A) Copper conductor nominal cross-sectional area(mm²)
6 1
10 1.5
16、20 2.5
25 4
32 6
40、50 10
63 16

Circuit breaker tripping characteristic curve

Outline and installation dimensions

Product Size A B C D 1P+N 2P 3P 3P+N 4P
TXC65LE-63 39 30 21 6 18+27 36+24 54+27 54+45 72+45

Wiring diagram

Keywords: TXC65LE-63, ELCB breaker

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