EKM1-63H 10KA Mini Circuit Breaker

> EKM1-63H 10KA Mini Circuit Breaker

  • Categories:S1 series Din-rail type Circuit Breakers
  • MOQ:1
  • Brand:ETEK
  • FOB Port:Ningbo, Zhejiang
  • Terms of Payment:Western Union,T/T Paypal
  • Delivery Time:15 Wording Days

Industrial Miniature Circuit Breakers EKM1-63S 4.5KA. Generally used in a loadcenter, panelboard, or similar device, miniature circuit breakers are a specific type of circuit breaker, used to switch and protect the lowest common distribution voltage in an electrical system.

Electrical Features

Rated current In 1,2,3,4,5,6,8,10,13,16,20,25,32,40,50,63A
Poles 1P, 1P+N, 2P, 3P, 3P+N,4P
Rated voltage Ue 240/415V
Insulation voltage Ui 500V
Rated frequency 50/60Hz
Rated breaking capacity 10,000A
Energy limiting class 3
Rated impulse withstand voltage(1.5/50) Uimp 4,000V
Dielectric test voltage at ind. Freq. for 1 min 2kV
Pollution degree 2
Thermo-magnetic release characteristic B,C,D

Mechanical Features

Electrical life 8,000 Cycles
Mechanical life 20,000 Cycles
Contact position indicator Yes
Protection degree IP20
Reference temperature for setting of thermal element 30℃
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-Ibs
Mounting On DIN rail EN 60715 (35mm) by means of fast clip device
Connection From top and bottom

Combination with accessories

Auxiliary contact EKM1-OF
Alarm contact EKM1-FB
Shunt release EKM1-MX
Over/Under voltage release EKM1-MV+MN
MCB Characteristics

Characteristics Curves

MCB Characteristics Curves

Tripping characteristics

Based on the Tripping Characteristics, MCB are available in“B”,“C”and“D”curve to suit different types of applications.

“B”Curve for protection of electrical circuits with equipment that does not cause surge current (lighting and distribution circuits) Short circuit release is set to (3-5)In.

“C”Curve for protection of electrical circuits with equipment that cause surge current (inductive loads and motor circuits) Short circuit release is set to (5-10)In.

“D”Curve for protection of electrical circuits with cause high inrush  current ,typically 12-15 times the thermal rated current (transformes, x-ray machines etc,)Short circuit release is set to (10-20)In.

 Circuit Diagram

 MCB Circuit Diagram

Overall and Installation Dimension(mm)

MCB Overall and Installation Dimension(mm)

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