Mining Explosion-proof and Intrinsically Safe Electrical Control Box

1、Introduction

KXJ1-20/1140(660) Mining Explosion-proof and Intrinsically Safe Electrical Control Box. This device is suitable for harsh environments with gas and coal dust explosions in underground coal mines, serving as a universal control device for various controlled equipment underground.

2、Main Technical Parameters

2.1 Power Supply

Input Voltage: AC 1140V / 660V, 75% Ue ~ 110% Ue.

Intrinsically Safe Power Output:

    DC 24.5V / 0.5A (3 channels)

    DC 18.5V / 1A (1 channel)

    DC 12.5V / 1.3A (1 channel）

Switching Power Supply Output:DC 24V / 4.5A (1 channel).

Duty Cycle:Continuous duty.

2.2 Communication Interfaces

Ethernet Ports:

    1)  Quantity: 2 Gigabit optical ports, 8 Gigabit electrical ports.

    2)  Transmission Mode: Full-duplex TCP/IP optical signal transmission.

    3)  Transmission Rate: 100 Mbps / 1000 Mbps auto-adaptive.

    4)  Transmit Optical Power: -6 dBm ~ 0 dBm (wavelength: 1310 nm).

RS485 Communication Ports:

    1)  Quantity: 2 channels.

    2)  Transmission Mode: Master-Slave RS485.

    3)  Transmission Rate: 9600 bps, 19200 bps, etc.

    4)  Signal Operating Voltage (Peak-to-Peak): 2V ~ 9V.

    5)  Signal Operating Current (Peak): ≤ 75 mA.

2.3 Input/Output

Digital Signals:

    1)  60 channels of passive contact (dry contact) input signals.

    2)  24 channels of passive contact (dry contact) output signals.

Analog Signals:

    1)  8 channels of analog input signals.

    2)  2 channels of analog output signals.

    3)  8 channels of PT100 temperature sensor input signals.

Internal Modules of the Control Box:

The control box contains the following built-in modules:

   CPU1511 module: 1 unit.

   CPU SR60 module: 1 unit.

   Expansion module DE16: 1 unit.

   Expansion module DE08: 1 unit.

   Expansion module AE08: 1 unit.

   Expansion module AQ02: 1 unit.

   Signal board CM01: 1 unit.

   Data acquisition module: 1 unit.

3. Appearance and Structural Characteristics

3.1 Explosion-Proof Type
Mining explosion-proof and intrinsically safe type.

3.2 Explosion-Proof Marking
Ex d[ib]I Mb.

3.3 Product Appearance and Structure
The external structure of the control box is divided into an intrinsically safe operation chamber, an explosion-proof chamber, an intrinsically safe wiring chamber, and external cable entry ports.

Size：874 x865 x 635 (mm）

Weight：≤500 kg