Gold Member Since 2006
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CNC Electric Group Co., Ltd.

Mining Explosion Proof, Electromagnetic Motor Starter, Mine Starter manufacturer / supplier in China, offering Mining Explosion Proof Starter (QJZ-400(315, 200, 120) /1140 (660, 380)), Double-Winding Non-Excitation Tap-Changing Oil Immersed Distribution Transformer of 6~10V, CNC Sz9/Szf9 Oil Immersed on-Load-Tap-Changing Transformer of 35kv and Below and so on.

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Supplier Homepage Product Mining Explosion proof product Mine EX Starter Mining Explosion Proof Starter (QJZ-400(315, 200, 120) /1140 (660, 380))

Mining Explosion Proof Starter (QJZ-400(315, 200, 120) /1140 (660, 380))

FOB Price: Get Latest Price
Min. Order: 1 Piece
Production Capacity: 1000PCS/Week
Transport Package: Export Packing
Payment Terms: L/C, T/T, D/P, Paypal, O/A

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Basic Info
  • Model NO.: QJZ-400(315, 200, 120)/1140(660, 380)
  • Rated Current (a): 400, 315, 200
  • Weight (Kg): 1400
  • Trademark: CNC
  • Origin: Wenzhou, Zhejiang
  • Rated Voltage (V): 1140V, 660V
  • Outline Dimension (Mm): 2300X595X800
  • Max Power (Kw): 590/340,450/270,290/170
  • Specification: CE, ISO, CCC
Product Description
Mining Explosion proof Starter (QJZ-400(315, 200, 120)/1140(660, 380))



1. Function

This series mine explosion-proof and intrinsically safe type vacuum electromagenetic starter
Is applicable in AC 50Hz distribution system with rated voltage of 1140V or 660V in
Underground coal mines with explosive and dangerous gas(methane) and coal dust. It is
Used to control the direct start and stop and reversal of three-phase squirrel-cage
Asynchronous motor with rated current of 400A, 315A and 200A, meanwhile, it also offers
Protection to motor and relative circuit. The starter can be connected with methane poweroff
Instrument, when it is overrun, the starter will switch off to realize power off.

2. Characteristics

2.1 Real-time English display for voltage, current, switching on and off and fault state
2.2 Standard RS485/232 communication interface
2.3 Multiple Protective functions for overload, short circuit, under voltage, over voltage,
Loss of phase, leakage lockout, three-phase imbalance etc.
2.4 The intrinsically safe control system can conveniently realize long distance control.
Single set, sequential control, combined control, and the start and feedback delay time
Is adjustable.
 Model    QJZ-400/1140(660,380)    QJZ-315/1140(660,380)    QJZ-200/1140(660,380)    QJZ-120/1140(660,380)
 Rated voltage (kV)  1140  660  380  1140 660   380  1140  660  380  1140  660  380
 Rated current (A)     400     315     200     120
  Max.power of controlled moto  590  340  197  460  270  155  395  170  98  177  102  59
 Leakage lockout value (kΩ)  40+20%  22+20%  7+20%  40+20%  22+20%  7+20%  40+20%  22+20%  7+20%  40+20%  22+20%  7+20%

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