Product Features
The mining flameproof and intrinsically safe multi‑circuit vacuum electromagnetic starter is equipped with an imported PLC module and a protection device. The protector features an advanced microprocessor, high‑precision data processing, and state‑of‑the‑art protection algorithms, offering advantages such as high protection accuracy and fast response. The protector provides multiple protection functions including earth leakage lockout, overload, short‑circuit, three‑phase imbalance (including phase loss), undervoltage, and overvoltage. It integrates protection, control, setting, self‑diagnosis, and communication capabilities. Key advantages are as follows:
Adopts a vacuum isolating switch with built‑in circuit breaker functionality;
Features an integrated modular design, making replacement and maintenance exceptionally simple;
Equipped with a large‑screen color display, providing clear and rich visual information;
User‑friendly and intuitive operating system interface, easy for on‑site operation;
Flexible control modes: single‑unit control, multi‑unit sequence control, and multi‑unit high/low speed control can be freely selected;
Comprehensive protection functions, simple parameter setting, and a pop‑up fault memory screen.
Product Parameters
| Model | Rated Voltage (V) | Rated Total Current (A) | Isolating Switch (Units) | Max. Number of Circuits |
|---|---|---|---|---|
| QJZ‑200/1140(660)‑4 | 1140 (660) | 200 | 1 | 4 |
| QJZ‑200/1140(660)‑2,3 | 1140 (660) | 200 | 1 | 2, 3 |
| QJZ‑400/1140(660)‑2,3,4 | 1140 (660) | 400 | 1 | 2, 3, 4 |
Product Features
The mining flameproof and intrinsically safe multi‑circuit vacuum electromagnetic starter is equipped with an imported PLC module and a protection device. The protector features an advanced microprocessor, high‑precision data processing, and state‑of‑the‑art protection algorithms, offering advantages such as high protection accuracy and fast response. The protector provides multiple protection functions including earth leakage lockout, overload, short‑circuit, three‑phase imbalance (including phase loss), undervoltage, and overvoltage. It integrates protection, control, setting, self‑diagnosis, and communication capabilities. Key advantages are as follows:
Adopts a vacuum isolating switch with built‑in circuit breaker functionality;
Features an integrated modular design, making replacement and maintenance exceptionally simple;
Equipped with a large‑screen color display, providing clear and rich visual information;
User‑friendly and intuitive operating system interface, easy for on‑site operation;
Flexible control modes: single‑unit control, multi‑unit sequence control, and multi‑unit high/low speed control can be freely selected;
Comprehensive protection functions, simple parameter setting, and a pop‑up fault memory screen.
Product Parameters
| Model | Rated Voltage (V) | Rated Total Current (A) | Isolating Switch (Units) | Max. Number of Circuits |
|---|---|---|---|---|
| QJZ‑200/1140(660)‑4 | 1140 (660) | 200 | 1 | 4 |
| QJZ‑200/1140(660)‑2,3 | 1140 (660) | 200 | 1 | 2, 3 |
| QJZ‑400/1140(660)‑2,3,4 | 1140 (660) | 400 | 1 | 2, 3, 4 |
