The explosion proof switchgear is mainly used for starting and stopping three-phase asynchronous motors in coal mines through local control or intrinsic safety remote control, and can be reversed during shutdown.

Mining explosion-proof and intrinsically safe type multi-loop high-voltage vacuum electromagnetic starter is suitable for coal mine AC 3300V, frequency 50Hz, three-phase neutral point unearthed power supply system, local or remote control of three-phase asynchronous electric drive, to realize the centralized control of shearer, scraper conveyor, crusher, transfer machine, pumping station and other equipment in comprehensive mechanized coal mining face.

ZJZ2-10/1140(660)SM This device is suitable for underground coal mine containing coal dust and explosive gas (methane). It can control the power supply of 127V grade lighting signal equipment, and the power supply is introduced as 50 Hz 1140V or 660V. The device has the functions of microcomputer monitoring and intelligent protection. The intelligent integrated protector takes high-performance single chip microcomputer as the core, adopts military grade peripheral chips and high-performance precision converter. Through modular hardware design and unique software algorithm, it has strong anti-interference ability, reliable action and high sensitivity of protection. It has good man-machine interaction interface, Chinese LCD display, menu operation, password authorization, anti misoperation, query and modification, fault memory and other functions. It has standard Modbus communication protocol, which is convenient for docking and monitoring with other automation equipment.

It is suitable for the mine with explosive dangerous gas and coal dust. It can control and protect the start and stop of less than 4 three-phase squirrel cage asynchronous motors in the AC 50 Hz and rated voltage ac1140v (660V), and the phase sequence can be changed when stopping. It is especially suitable for the centralized monitoring of mining, transportation, coal mining and other dynamic loads.

The device is suitable for coal mine containing explosive gases like gas, coal dust, with AC 50HZ and voltage of 1140V or 660V. The ventilation of the driving surface and power supply are controlled by the device, with all control functions of dual power supply and fan.

Explosion Proof and Intrinsically Safe Dual Power Supply and Dual Circuit Lighting Transformer for Coal Mine ZJZ-16/1140(660)SM-2 This device is suitable for underground coal mine containing coal dust and explosive gas (methane). It can control the power supply of 127V grade lighting signal equipment, and the power supply is introduced as 50 Hz 1140V or 660V.

Application: GAD5 (B) mine intrinsically safe tension sensor is used in workplaces such as underground coal mines, open-pit coal mines, and coal preparation plants. It is used to detect the tension protection signal of the integrated protection device of the belt conveyor.

The device is suitable for the control and protection of ac 127V electrical equipment in mines containing explosive gas (methane) and coal dust.

Mining explosion-proof and intrinsically safe type multi-loop high-voltage vacuum electromagnetic starter is suitable for coal mine AC 3300V, frequency 50Hz, three-phase neutral point unearthed power supply system, local or remote control of three-phase asynchronous electric drive, to realize the centralized control of shearer, scraper conveyor, crusher, transfer machine, pumping station and other equipment in comprehensive mechanized coal mining face.

Mining explosion-proof and intrinsically safe type multi-loop high-voltage vacuum electromagnetic starter is suitable for coal mine AC 3300V, frequency 50Hz, three-phase neutral point unearthed power supply system, local or remote control of three-phase asynchronous electric drive, to realize the centralized control of shearer, scraper conveyor, crusher, transfer machine, pumping station and other equipment in comprehensive mechanized coal mining face.

QJZ3-2400/1140(660)-8ML  mine explosion-proof and intrinsically safe type multi-loop  vacuum electromagnetic starter , it is applicable to the mine with explosive gas and coal dust. In the circuit with AC 50Hz and rated voltage of AC 1140 (660) V, it can control and protect the starting and stopping of 8  or less three-phase squirrel cage asynchronous motors at the same time, and can change the phase sequence when stopping. It is especially suitable for centralized monitoring of mining, transportation, mining and other working faces with concentrated power load.

ZJZ2-10/1140(660)SM This device is suitable for underground coal mine containing coal dust and explosive gas (methane). It can control the power supply of 127V grade lighting signal equipment, and the power supply is introduced as 50 Hz 1140V or 660V.