20KA miniature circuit breaker

The state-of-art design Handle central-staying function for circuit fault indicating High short circuit capacity Feature: 1) Energy saving & environmental harmonized model 2) 100% Intellectual Property outlook, arc-shaped face for comfortable operation3) 100% Intellectual Property operation structure, to ensure the breaking capacity test4) Breaking capacity from 10KA, 20KA, and  up to 50KA!! (as the form below, the most safe and reliable MCB in the world)  ----100% designed arc extinguishing house, cut the arc into minimum  ----Special designed contact ensuring the breaking capacity test     5) Handle can be locked at “ON” or “OFF”, prevent the unwanted operation6) House, top grade fire resistance, V0 grade.Technical Data: Standard: IEC60898-1, IEC60947-2Approvals:  CB,CE,VDE (applying)Rated current ln (A): 1, 2, 4, 6, 10, 16, 20, 25, 32, 40, 50, 63Rated voltage Ue(AC): 230/400VOperational voltage (AC):Min.24V Max.250/440VNumber of poles:1P,2P,3P,4PTripping Characteristics: B,C,DCharacteristic curve B(ln): 3-5Characteristic curve C(ln): 5-10 Characteristic curve D(ln): 10-20Thermal operating limit (ln): 1.13–1.45Degree of protection:IP40(top),IP20(terminal),with connected conductorsElectrical life (0-C): 10,000 (2.5 times of IEC standard)Mechanical life (0-C): 20,000 (5 times of IEC standard) Mounting position:AnyConductor cross-sections:Terminal can connect stranded conductor within 50 square numberTerminal tightening torque (N,m):2.5-3The relative humidity is max 95% when ambient temperature (°C):55Storage temperature(°C):-40-+75Altitude Max.(meters):2000 

-Handle short circuit capacity

high break capacity 10KA for whole range and 15KA capacity for current rating up to 40A

thanks to the powerful electric arc extinguishing system, long electrical endurance up to 6000 cycles, thanks to quick making mechanism

-Screw terminal lock devicw

the lock device prevenrs unwanted or casual dismounting of connected terminals

Rated current ln(A): 1,2,4,6,10,16,20,25,32,40,50,63

Rated voltage Ue(AC): 230/400V

Operational voltage(AC): Min.24V, Max. 250/440V

Rated frequency(Hz): 50/60

Rated insulation voltage(AC): 500V

Rated in pulse withstand voltage: 6KV

Number of poles: 1P, 2P, 3P, 4P

Model	Poles(P)	ICU(KA)	Rated voltage(V)	Standards
MK6-63H	1P	10	230	IEC60898-1
MK6-63H	2P,3P,4P	10	400	IEC60898-1
MK6-63S	1P	25	230	IEC60947-2
MK6-63S	2P	50	230	IEC60947-2
MK6-63S	2,3P,4P	25	400	IEC60947-2
MK6-63S	1P	20	230	IEC60947-2
MK6-63S	2P	40	230	IEC60947-2
MK6-63S	2,3P,4P	20	400	IEC60947-2
MK6-63S	1P	20	230	IEC60947-2
MK6-63S	2P	40	230	IEC60947-2
MK6-63S	2,3P,4P	20	400	IEC60947-2

Terminal could use for busbar connection thickness (mm): 0.8-2, wiring(mm²): 1-25

Terminal tightening torque(N.m): 2.5-3

The relatative humidity is max 95%when ambient tempera]ture(°C): 55

Storage temperature(°C): -40~+85

	Test Current	Tripping Time	Applications
B	3In 5In	t≥0.1s Non-Tripping t<0.1s Tripping	Only for resistive loads such as: -electrical heating -water heater -stoves
C	5In 10In	t≥0.1s Non-Tripping t<0.1s Tripping	Usual loads such as: -lighting -socket outlets -small motors
D	10In 20In	t≥0.1s Non-Tripping t<0.1s Tripping	Control and protection of circuits having important transient inrush currents(large motors)

Thermal release

The release is initiated by a bimetal strip in case of overload

The standard defines the range of release for specific overload values

Reference ambient temperature is 30°C

20KA miniature circuit breaker