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DZ47LE 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 DZ47LE series ELCB breaker includes DZ47LE-32/1P, DZ47LE-32/2P, DZ47LE-32/3P, DZ47LE-32/3P+N, DZ47LE-32/4P, DZ47LE/1P, DZ47LE/2P, DZ47LE/3P, DZ47LE/3P+N, DZ47LE/4P, they are current action type electronic leakage circuit breakers, consist of the DZ47 MCB and leakage release. When
leakage or personal electric shock happen in the protection circuit, as long as the leakage current I△n 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.


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


Residual current protection type Electronic
Residual current working type AC A
Rated Current 6A,10A,16A,20A,25A,32A,40A,50A,63A,80A,100A,125A
Poles 1P+N,2P,3P.3P+N.4P
Rated voltage Ue 1P+N/2P:230V3P,3P+N,4P:400V
Rated working voltage 230 / 400V AC
Rated residual operating current 30,50,75,100,300 mA
Insulation voltage Ui 500V
Rated frequency 50/60Hz
Rated sensitivity I△n 0.01A 0.03A 0.1A 0.3A
Short-circuit current Inc=l△c 4500A
Break time under I△n ≤0.15
Rated impulse withstand voltage(1.2/50) Uimp 6000V
Dielectric test voltage at and ind, freq. for 1min 2.5kV
Polution degree 2
Thermo-magnetic release characteristic B C
Electrical Life 2000 times
Mechanical Life 10000 times
Contact position indicator Yes
Protection Class IP20
Reference temperature for setting of thermal element 30℃
Ambient temperature (with daily average s35'C) -5-+40℃
Storage temperature -25-+70℃
Terminal connection type Cable/U-type busbar/Pin-type busbar
Terminal size top/bottom for cable 25mm18-3
Tightening torque 3.0Nm 22
Mounting On DIN rail FN 60715 (35mm) by means of fast clip device
Connection Top and bottom
Trip indicator DZ47LE residual current action on the trip instructions, the reset button pops up for the leakage trip
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
Wiring 6 ~ 32A, 16mm ² and the following wires; 40 ~ 60A,25mm ² and below the wire
Meet the standard IEC61009-1 / GB16917.1
Compliance with certification CCC certification
Tripping characteristics C-shaped curve(5 ~ 10) In D-shaped curve (10 ~ 14) In


■ 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.

Frame rated current Inm(A) 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
Make-break capacity cosΦ
10-125A 30/50/75/100 15/25/38/50 230 / 380 4500A 0.8 2000 C


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


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).
Overcurrent release protection characteristics

Release type C D Tripping time
Thermal tripping l1 1.13ln 1.13ln ≥1h
l2 1.45ln 1.45ln <1h
Magnetic trip l3 5ln 5ln ≥1s
10ln 10ln 10ln <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 thelower limit of the instantaneous trip range of the overcurrent of
type C or D is to be tested.

No. Rated Current (A) Curve Starting state DC Times Result Remark
a 6~60 C、D Cold 1.13ln t≤1h No-trip  
b 6~60 C、D Immediately following the last test 1.45ln t<1h Trip The current rise steadily
to a fixed value within 5S
c 6~60 C、D Cold 2.55ln 1s<60s(in≤32a)<> Trip  
C、D 1s32A)<120s(in>  
d 6~60 C、D Cold 5ln t≤0.1s No-trip The current is recieved by closing the auxiliary switch
C、D 10ln t≤0.1s Trip
C、D 10ln t≤0.1s No-trip The current is recieved by closing the auxiliary switch
C、D 10ln t≤0.1s Trip


Temperature -15℃ -5℃ 0℃ 10℃ 20℃ 30℃ 40℃ 55℃
Rated current correction factor 1.19 1.15 1.13 1.06 1.05 1.00 0.96 0.89


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
80 25
100 35
125 50



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