Key facts
- Brand
- Siemens
- Model
- 3WA
- Industry
- Industrial
- Documents
- 2
- Languages
- EN · ZH
- Last added
- 2026-10-28
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Siemens TL-703 Warning Light User Manual
The TL-703 series warning lights are designed for use in mechanical, electrical, chemical, marine, railway and metallurgical control circuits, providing signal indication, operation prompts and remote monitoring. The manual explains the model coding, light and sound options, voltage levels and color codes.
The document covers safety precautions, technical parameters such as rated insulation voltage and IP65 protection, operating environment limits, installation methods, wiring diagrams and step‑by‑step assembly instructions. This manual is written in Chinese.
Siemens 3WA specifications
| Rated insulation voltage (Ui) | 690 V |
|---|---|
| Power frequency withstand voltage | AC 1890 V / 50 Hz for 5 s |
| Operating temperature range | -5 °C to +40 °C |
| Maximum altitude | ≤ 2000 m |
| Protection rating | IP65 |
| Relative humidity | ≤ 98 % |
| Pollution degree | Level 3 |
All Siemens 3WA documents by type
Disassembly, diagnostics and part numbers, for repair.
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
Who is qualified to perform inspection and maintenance on the 3WA air circuit breaker?
Inspection and maintenance may only be performed by qualified personnel who are familiar with the erection, installation, commissioning, and operation of the product.
From: Siemens 3WA Air Circuit Breaker Communication System Manual
What specific safety steps must be taken before commencing maintenance work?
Before starting work, you must ensure no voltage is present on the power distribution equipment and maintain that condition while work is being performed.
From: Siemens 3WA Air Circuit Breaker Communication System Manual
What safety precautions must be taken before installing the TL-703 warning light?
Check that the product model matches the selection requirements, disconnect the power before installation or maintenance, ensure the supply voltage matches the product rating, and avoid contact with chemical solvents.
What is the recommended operating temperature range for the TL-703?
The device can operate from –5 °C up to +40 °C.