This manual provides usage instructions, technical specifications, and safety guidelines for the Siemens ALS3 series limit switches.
The Siemens ALS3 series limit switches are small current main control appliances used to limit the position or travel of mechanical motion. They are widely applied in machinery, textile, shipbuilding, aviation, automotive, and other fields for control circuits, signaling, and interlocking purposes. The document details the model composition, including various actuator types and module configurations.
The manual outlines technical characteristics such as rated voltage, current, insulation voltage, and protection class (IP67). It also provides specific installation torque values for different screws and lists safety precautions regarding environmental conditions, wiring, and operation to ensure safe and reliable performance. This manual is written in Chinese.
| Standard Compliance | IEC60947-5-1, GB 14048.5 |
|---|---|
| Operating Temperature | -25~70°C |
| Storage Temperature | -40~70°C |
| Protection Class | IP67 |
| Rated Insulation Voltage | 500V |
| Rated Working Voltage (AC) | 250V |
| Rated Working Voltage (DC) | 220V |
| Terminal Contact Resistance | ≤25mΩ |
The operating temperature range is -25 to 70°C.
The protection class is IP67.
The maximum installation torque for the head screws is 0.6 Nm.
Fuses conforming to IEC60269, type gI or gG, 10A are recommended.