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Help Center[hunan Chuang'an Explosion-proof] Kjz-□/1140(660, 380)yl Mine-used Flameproof and Intrinsically Safe Permanent Magnet Vacuum Feeder Switch
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KJZ-□/1140(660,380)YL
Mine-used flameproof and intrinsically safePermanent magnetVacuum feed switch (Quick connection)
Purpose and scope of useApplication and range of application
This series of mine-used flameproof and intrinsically safe permanent magnet vacuum feed switches are suitable for coal mines containing methane mixed gas with explosion hazards. In an AC power supply grid with a frequency of50Hz, a rated voltage of1140V and below with an ungrounded neutral point, they can be used as a general distribution switch, a branch switch, or for infrequent starting of motors. When connected to the mine power automatic control and comprehensive automation system, remote automatic control and monitoring equipment can be realized to achieve unattended operation.
Product featuresProduct features
It adopts a quick-opening door structure and features a full Chinese display, which can display real-time parameters of the system such as three-phase voltage, three-phase current, active power, reactive power, insulation resistance, power consumption, and the number of closing times;
It uses a pull-down menu for parameter setting and has the function of parameter setting and modification. It can precisely modify and set the parameters of the switch with a step size of 1;
The switch has multiple protection functions such as short-circuit protection, overload protection, leakage blocking, phase loss protection, three-phase unbalance protection, leakage protection, undervoltage protection, and overvoltage absorption;
It has functions of wind and gas locking, high-voltage electrical interlocking, temperature alarm, and remote opening;
The remote control uses intrinsic safety control. The intrinsic safety parameters are: voltage 21.8V(AC), current 78mA(AC);
It is equipped with standard 4G, wifi, TCP/IP, 485, and LoRa communication interfaces, which can be selected according to customer needs. When configured in the mine power automatic control and integrated automation system, it can realize the four-remote functions of remote measurement, remote control, remote signaling, and remote adjustment, achieving the automation of power supply equipment;
It uses a quick connector;
It adopts a permanent magnet (bistable) vacuum circuit breaker, which features a simple structure, easy maintenance, fast response speed, stable operation, and a long service life.
MainTechnical parameters Main technical parameters
Product modelProduct model |
RatedVoltage Rated voltage (V) |
RatedCurrent Rated current (A) |
Rated short circuit making and limited breaking capacity (Effective value of periodic component)KA/cosΘ Rated short circuit making and limited breaking capacity (effective value of periodic component) |
Electrical life(times) Electrical life(times) |
Mechanical life(times) Mechanical life(times)
|
Outside diameter of cable Outside diameter of cable |
Overalldimensions Boundary dimension (mm) |
Weight Weight (kg) |
|||
1140V |
660V |
380V |
Main Main cable |
Control Control cable |
|||||||
KJZ-200/1140(660. 380)YL |
1140 660 380 |
200 |
4.5/0.3 |
7.5/0.3 |
9/0.3 |
3000 |
15000 |
39-63 |
8-20 |
791x531x836 |
220 |
KJZ-400/1140(660, 380)YL |
400 |
7.5/0.3 |
9/0.3 |
12.5/0.3 |
|||||||
KJZ-500/1140(660, 380)YL |
500 |
9/0.3 |
12/0.3 |
15/0.3 |
42-78 |
8-20 |
830x540x970 |
320 |
|||
KJZ-630/1140(660. 380)YL |
630 |
12.5/0.3 |
15/0.3 |
20/0.3 |
|||||||
KJZ-800/1140(660. 380)YL |
800 |
15/0.3 |
20/0.3 |
42-78 |
8-20 |
860x629x1013 |
410 |
||||
KJZ-1000/1140YL |
1000 |
15/0.3 |
20/0.3 |
||||||||
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