The QFK5F-45(63)-0.4(0.23) series switching capacitor composite switch is suitable for low-voltage three-phase common compensation single-phase compensation reactive compensation of capacitor switching control. It adopts a thyristor and a contactor in parallel. When the switch is on, it has the characteristic of thyristor zero-crossing instantaneous switching, and when it is normally closed, it has the characteristic of contactor suction. It has the advantages of no surge on capacitor and higher capacitor life. It has overcurrent protection, voltage and current display functions.
The QFK QFK5F-45(63)-0.4(0.23) series is a switch‑capacitor composite device designed for low‑voltage three‑phase common‑compensation and single‑phase split‑compensation reactive power correction. It combines a thyristor and a contactor to achieve zero‑crossing switching and normal contactor operation, reducing surge currents and extending capacitor life.
The manual covers product description, technical parameters, panel operation, wiring diagrams, setting procedures, usage guidelines, safety precautions, and physical dimensions, enabling users to install, configure, and maintain the switch safely and effectively. This manual is written in Chinese.
| Rated Voltage | 380V ± 15% |
|---|---|
| Frequency | 50 Hz |
| Rated Current | 45 A (63 A) |
| Rated Current Setting | 5 A ~ 50 A (65 A) |
| Over‑current Setting | 1.1 ~ 1.5 × rated current |
| Over‑current Cut‑off Delay | 1 ~ 30 s |
| Capacitor Decay Setting | 30 % ~ 80 % |
| Power Consumption | 4 W |
| Contact Voltage | ≤ 0.05 V |
| Switch Withstand Voltage | ≥ 1000 V |
| Service Life | 200 000 cycles |
The rated voltage is 380 V ± 15 %.
The over‑current setting can be adjusted between 1.1 and 1.5 times the rated current using the F‑1 function.
Do not short the output terminals, ensure correct polarity of input and output connections, and provide appropriate short‑circuit protection such as a circuit breaker or fast fuse.
Press and hold the function key for 3 seconds to enter setting mode, select F‑3, and adjust the decay percentage between 30 % and 80 % using the up/down keys.