MCB Accessories Supplier

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Company Profile

Zhejiang ETEK Electrical Technology Co.,Ltd. was founded on January of 2011, which has more than 200 employees now. It is a professional manufacturing company engaged in R & D, production and sale of high and low voltage electrical products, such as terminal distribution electrical appliances, industrial distribution electrical appliances, industrial control electrical appliances, DC systems distribution appliances, etc. it possesses 3 major manufacturing departments and 1 import & export trading company. The three manufacturing departments are terminal distribution electrical appliances manufacturing department, industrial distribution electrical appliances manufacturing department and industrial control electrical appliances manufacturing department.

TEL : 0086-577-62718777

FAX : 0086-577-62774090


product description

MCB Accessories

MCB Accessories Supplier MCB Accessories

Handle Lock for MCB

Model No. EKLK18  
It is used to lock Breaker handle on the OFF or ON position.  
Suitable for MCB,RCCB,RCBO  
Colour Yellow
Material Nylon PA66 and Stainless

Plug Part for MCB

It is used to seal the MCB screw hole for protecting and locking  
Colour Light Grey
Material Nylon PA66
Model No. EKM1PL  
Suitable for MCB Model EKM1-63,EKM1-63H,EKM1-63DC,RCBO Model EKL3-40  
Model No. EKM1PLS          
Suitable for MCB Model EKM1-63S  


EKL1-63B 10KA B Type Residual Current Circuit Breaker

MCB Accessories Supplier Residual Current Circuit Breaker

Electrical Features

Mode Electromagnetic
Type(wave form of the earth leakage sensed) B
Rated current In 25,40,63A
Poles 4P
Rated voltage Ue 4P 415V~
Insulation voltage Ui 500V
Rated frequency 50/60Hz
Rated residual operation current(I△n) 30mA
Rated residual making and breaking capacity (I△m) 500(In=2540A) 630(In=63A)
Short-circuit current Inc= I△c 10,000A
Break time under I△n ≤0.1s
Rated impulse withstand voltage(1.5/50) Uimp 4000V
Dielectric test voltage at ind.Freq. for 1min 2.5kV
Electrical life 2,000 Cycles
Mechanical life 4,000 Cycles


Contact position indicator Yes
Protection degree IP20
Ambient temperature(with daily average≤35℃) -5℃~+40℃
Storage temperature -25℃~+70℃
Terminal connection type Cable/Pin-type busbar/U-type busbar
Terminal size top/bottom for cable 25mm2  18-3AWG
Terminal size top/bottom for busbar 25mm2  18-3AWG
Tightening torque 2.5Nm  22In-lbs
Mounting On DIN rail EN60715(35mm) by means of fast clip device
Connection From top and bottom

Overall and Installation Dimension(mm)

MCB Accessories Supplier Residual Current Circuit Breaker Drawing

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