The JK ZK Automation KTY199 single‑phase SCR trigger board manual provides specifications, wiring diagrams, and operating instructions.
The KTY199 is a single‑phase, phase‑shift type power controller that uses a high‑performance, military‑grade SCR trigger IC. It delivers highly symmetric and stable trigger pulses without the need for temperature compensation, and can be used with resistive, inductive, transformer primary, and many other load types.
The manual covers product features, selection guides, normal operating conditions, installation wiring, parameter adjustment, protection functions, and troubleshooting steps, helping users install and operate the board safely and efficiently. This manual is written in Chinese.
| Rated input voltage | 220 V or 380 V, 50/60 Hz |
|---|---|
| Input voltage tolerance | ±15 % of rated voltage |
| Maximum trigger SCR current | 5 A ~ 8000 A |
| Supported load types | Resistive, inductive, transformer primary/secondary, pure inductive coil, welding machines, water‑treatment equipment, etc. |
| Input control signal (4‑20 mA) | Impedance 100 Ω |
| Input control signal (0‑10 V) | Impedance >50 kΩ |
| Soft‑start time (adjustable) | 0 ~ 60 s |
| Maximum dimensions | 175 mm × 105 mm × 25 mm |
| Control power consumption | ≤10 W |
| Over‑current protection threshold | 1.8 × rated current (shuts off within 10 ms) |
| Over‑temperature protection threshold | ≥ 75 °C |
| Operating temperature range | -30 °C ~ 55 °C |
| Maximum altitude | 3000 m |
The board accepts a rated input voltage of 220 V or 380 V at 50/60 Hz, with a tolerance of ±15 % of the rated value.
If the output current exceeds 1.8 times the rated current, the board shuts off the output within 10 ms and triggers an alarm.
The device can operate up to 3000 m altitude, at temperatures from –30 °C to 55 °C, with relative humidity up to 90 %, and must be installed away from explosive dust, corrosive gases, and severe vibration.