This document is the Chinese operation manual for the Automatic Load Transfer Switch, providing safety instructions and precautions for the proper and safe use of the product.
This manual explains the safety symbols (DANGER, WARNING, CAUTION) and required precautions for handling the ALTS72 load transfer switch. It emphasizes that installation must be performed by a qualified electrician to avoid grounding faults, short circuits, or fire hazards.
The document also details installation steps, wiring diagrams, environmental limits, and functional specifications such as switching time, rated short‑time current, and monitoring features. Proper testing before energizing the unit and regular maintenance procedures are described to ensure reliable operation. This manual is written in Chinese.
| Switching time | ≤ 10 cycles (167 ms) |
|---|---|
| Rated short‑time current | 16 kA / 1 s |
| Maximum ambient temperature | 40 °C |
| Maximum installation altitude | < 1000 m |
| Maximum relative humidity | < 92 % (24 h average) |
Installation must be performed by a qualified electrician.
DANGER indicates possible death or serious injury, WARNING indicates a high risk of death or serious injury, and CAUTION indicates a risk of injury or property damage.
The switch completes the transfer within 10 cycles, i.e., about 167 ms.
The unit may be used up to a maximum ambient temperature of 40 °C.