🔹 WATSN Automatic Transfer Switch – NA01003V (100A, 3 Pole, Type A, Under/Over Voltage Protection)
The WATSN NA01003V Automatic Transfer Switch (ATS) is a reliable power transfer solution designed for automatic switching between the main utility supply and a backup power source. It ensures uninterrupted power availability by automatically transferring the load whenever the primary source fails or operates outside preset voltage limits.
This model features a 100A rated current, 3-pole configuration, and a Type A microprocessor-based controller with integrated under-voltage and over-voltage protection. The ATS continuously monitors both power sources and performs fast automatic transfer operations to maintain power continuity for critical loads.
Built on the WATSN Class PC transfer switch platform, the NA01003V provides dependable switching performance, compact dimensions, and compliance with IEC 60947-6-1 standards. It is suitable for commercial buildings, industrial facilities, telecom installations, and generator backup systems requiring reliable source changeover.
• Genuine WATSN Automatic Transfer Switch
• Model: NA01003V
• 100A rated operational current
• 3-Pole configuration
• Type A intelligent controller
• Under-voltage and over-voltage protection
• Automatic utility-to-generator transfer
• Open transition switching operation
• Class PC transfer switch technology
• Fast transfer speed (<100 ms)
• Built-in microprocessor controller
• IEC 60947-6-1 compliant
• High reliability for critical power applications
| Parameter | Specification |
|---|---|
| Product Type | Automatic Transfer Switch (ATS) |
| Model Number | NA01003V |
| Series | WATSN |
| Rated Current (Ie) | 100A |
| Number of Poles | 3 Pole |
| Controller Type | Type A |
| Additional Function | Under & Over Voltage Protection |
| Transfer Switch Class | PC Class |
| Utilization Category | AC-33B |
| Rated Voltage | 380–415V AC |
| Frequency | 50/60 Hz |
| Rated Insulation Voltage (Ui) | 690V |
| Rated Impulse Withstand Voltage (Uimp) | 6kV |
| Transfer Type | Open Transition |
| Operating Positions | Source I – OFF – Source II |
| Installation | Panel Mounted |
| Standard | IEC 60947-6-1 |
| Application | Utility–Generator Changeover |
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