Molded Case Circuit Breaker

QKM1E-630 (Liquid Crystal)

Designed for 50 Hz, 400 V power systems, this circuit breaker distributes energy and protects against overloads, short circuits, voltage anomalies, and phase loss. It measures current, voltage, power, and energy, and supports RS-485, PLC, Bluetooth, and HPLC communication (compliant with DL/T 645, DL/T 698.45). It features hot-swappable controllers, terminal temperature monitoring, and remote control functions, meeting GB/T 14048.2 standards.

QKM1E-125 (Liquid Crystal)

Designed for 50 Hz, 400 V power systems, this circuit breaker distributes energy and protects against overloads, short circuits, voltage anomalies, and phase loss. It measures current, voltage, power, and energy, and supports RS-485, PLC, Bluetooth, and HPLC communication (compliant with DL/T 645, DL/T 698.45). It features hot-swappable controllers, terminal temperature monitoring, and remote control functions, meeting GB/T 14048.2 standards.

QKM1E-630(Knob-Type)

Designed for 50 Hz, 400 V power systems, this circuit breaker distributes energy and protects against overloads, short circuits, voltage anomalies, and phase loss. It measures current, voltage, power, and energy, and supports RS-485, PLC, Bluetooth, and HPLC communication (compliant with DL/T 645, DL/T 698.45). It features hot-swappable controllers, terminal temperature monitoring, and remote control functions, meeting GB/T 14048.2 standards.

QKM1 series plastic-case circuit breaker

MCCBs with rated insulation voltage 800V (660V for QKM1-63), suitable for AC 50/60Hz circuits (400V, 10A–800A). Used for infrequent power line switching and motor starting, providing overload, short-circuit, and undervoltage protection. Available in L-type (standard breaking capacity) and M-type (high breaking capacity). Features compact size, high breaking capacity, short arc flash distance, low vibration, vertical/horizontal mounting, and isolation function. Compliant with GB/T 14048.2.

QKM6E-630

Smart circuit breaker for 400V, 100A–630A systems, offering comprehensive protection and remote control. Features multi-parameter measurement, RS-485/Bluetooth/HPLC connectivity, and a hot-swappable controller. Compliant with GB/T 14048.2, DL/T645, DL/T 698.45.

QKM1E-630CL(Metering Switch)

Designed for 50 Hz, 400 V power systems, this circuit breaker distributes energy and protects against overloads, short circuits, voltage anomalies, and phase loss. It measures current, voltage, power, and energy, and supports RS-485, PLC, Bluetooth, and HPLC communication (compliant with DL/T 645, DL/T 698.45). It features hot-swappable controllers, terminal temperature monitoring, and remote control functions, meeting GB/T 14048.2 standards.

QKM1E-400CL(Metering Switch)

Designed for 50 Hz, 400 V power systems, this circuit breaker distributes energy and protects against overloads, short circuits, voltage anomalies, and phase loss. It measures current, voltage, power, and energy, and supports RS-485, PLC, Bluetooth, and HPLC communication (compliant with DL/T 645, DL/T 698.45). It features hot-swappable controllers, terminal temperature monitoring, and remote control functions, meeting GB/T 14048.2 standards.

QKM1E-250CM（Metering Switch）

Designed for 50 Hz, 400 V power systems, this circuit breaker distributes energy and protects against overloads, short circuits, voltage anomalies, and phase loss. It measures current, voltage, power, and energy, and supports RS-485, PLC, Bluetooth, and HPLC communication (compliant with DL/T 645, DL/T 698.45). It features hot-swappable controllers, terminal temperature monitoring, and remote control functions, meeting GB/T 14048.2 standards.

QKM6E-400

Smart circuit breaker for 400V, 100A–630A systems, offering comprehensive protection and remote control. Features multi-parameter measurement, RS-485/Bluetooth/HPLC connectivity, and a hot-swappable controller. Compliant with GB/T 14048.2, DL/T645, DL/T 698.45.

QKM6E-250

Smart circuit breaker for 400V, 100A–630A systems, offering comprehensive protection and remote control. Features multi-parameter measurement, RS-485/Bluetooth/HPLC connectivity, and a hot-swappable controller. Compliant with GB/T 14048.2, DL/T645, DL/T 698.45.

QKM7-800M

Compact, high-breaking-capacity circuit breakers (25A–800A, 400V/690V) for overload, short-circuit, and undervoltage protection. Suitable for AC 50/60Hz systems, with vertical/horizontal installation and modular accessories. Compliant with GB/T 14048.2.

QKM7-630L

Compact, high-breaking-capacity circuit breakers (25A–800A, 400V/690V) for overload, short-circuit, and undervoltage protection. Suitable for AC 50/60Hz systems, with vertical/horizontal installation and modular accessories. Compliant with GB/T 14048.2.

Since 2008, QYKJ Technology has been at the forefront of low-voltage electrical protection, continually growing and innovating in a competitive global marketplace.

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