25 Year OEM,ODM$OBM Special Circuit Break Manufactory In China
  jack@yuanky.com
  jack_yuanky
  jack_yuanky@hotmail.com
Fax: 0086-577-62652370
Tel: 0086-577-62655872

APPLICATION

NO.

function

Using place

picture

A1

auxiliary switch

Signal controller

A2

Without auxiliary

B1

Universal terminal

The section of electrification rail transformer box

Z1

Self-recovery universal terminal

B2

Non self-recovery kontaktbolzen

  

Z2

self-recovery kontaktbolzen

Attention:when choose dely curve of NO.B1,Z1,B2,Z2,we sugguest to choose curve 22

Using characteristic
YXKD2 series adpot hydraulic electromegnetic theory. Widely used in outdoor din-rail transformer..as protection for transformer

YXKD2 series slove  the unstable factors of big discreteness of fuse current,aging and poor contact caused by oxidation.even in the extremly cold and hot enviroment it also can supply accurate and stable protection.
YXKD2 series has two connection modes screw and socket.,the connection part of socket way has three intercommunicating contact .circuit breaker is  herizenly installed,the install position is the same as fuse plate.it is easy to intall and replace.
YXKD2 series provide continous working self-recovery function specilly for railway electric stage base on the normal circuit breaker.avoid the infulence of railway open to traffic caused by the instant current shock,the  trip protection of circuit breaker and the long time
YXKD2 series has a transparent dust cover on the actuator lever,it has the antipollution function.
Certificate and standard
RCC[2007]650 railway singal hydraulic electromegnetic circuit breaker telchnology
GB14048.2-2001 low voltage breaker equipement and control equiment low voltage circuit breaker
D1series also applied TB/T publiced by the railway department .VDE0642 and EN 60934 |
Trip characteristic in normal temperature

NO.of delay curve and trip characteristicvalue (sec)

Rated current percentage (A)

105%

130%

150%

200%

400%

600%

800%

1000%

1500%

Short delay curve21

No trip

8-180

5-40

2-20

0.005-1.8

0.003-0.03

0.003-0.022

0.003-0.02

0.003-0.02

Middle delay curve22

No trip

25-550

20-150

15-50

1-6.5

0.01-2

0.004-0.8

0.003-0.18

0.003-0.025

Long delay curve23

No trip

90-1000

50-360

30-100

3.5-20

1-7

0.02-4

0.005-0.2

0.004-0.03

suggest to choose short delay curve 23
All the curve data is gotten at the temperature of 25 degree and havent added the time of load working trip time. vertically installed
When the the rated current is 105% it deosnt trip.when the rated current is above 130%,it should trip in the trip characteristic value
Base on 60HZ 1/2 cycle 8.33ms pulse.the capbility of minimum inrushed pluse is 12 times as rated current and when in high pulse it is 18 times as rated current .the trip time is in above
High pulse delay is used in power supply bulk capacitorand , load transformer and so on which has the big initial current in short time.

Pulse tolerance

Technology porformance

Rated voltage

240VAC;65VDC

Rated current

0.1a,0.2A,0.5A,1A,2A,3A,5A,10A,15A,20A,25A,30A

Rated breaking capacity

Break current 1000A test operation order o-t(3min)-co

insulation resistance

In the enviroment 15-35degree.relative humidity 45%-80%.

Strength of meduim

Circuti breakre can stand AC sine wave 50Hz.RMS 3000V test voltage last for 1minSea level Modified Coefficient ka :2000m/1ka ; 3000m/1.11ka; 4000m/1.25ka; 5000m/1.43ka

Machanical lifetime

10000 time trip –notrip without electricity.the operation frequency is 6time each min

Eletric lifetime

6000time with rated voltage and current trip-nontirp.operation frequency is 2 times each minute

Self-recovery circuit breaker characteristic
The power recovered more 15 seconds
Continuous operation is more than 5000 times
Self-recovery circuit breaker work in 2ln rated current,characteristic curve 23;after the recovery work in1.25ln rated current the characteristic curve 22
Auxiliary switch rated value
Ac voltage 250V/125V.current 1A/3A; DC voltage28V.current 1A
Electric lifetime more than 50000times
Work enviroment

Working temperature

Working temperature -40~+85;relative humidity is more than 901%

Install condidtion

altitude does not exceed 2500m install place pollution class is 3 install safety is II III

vibration

TB/T2846way frequency capcity 10~500~10Hz scan test.acceleration 9.18m/s2. each the three directions lasts for 15 min

collision

GB/2423.5way.top value acceleration :150m/s2 15g; last for 11ms

inflaming retarding

GB/T5169.11way, glow wire temperature is 960

resistance to damp-heat

GB/T2423.4way. last for 12weeks 40and 90% relative humidity

Salt mist

GB/T2423.17way.last for 48 hours

Low high temperature

GB/T2423.1 and GB/T2423.2way.high temperature 40 low temperature -10 last for 2 hours