🔹 WATSN Remote Transfer Switch – NR04004 (400A, 4 Pole, Remote Operated Changeover Switch)
The WATSN NR04004 Remote Transfer Switch (RTSE) is a high-capacity remote-operated transfer switch designed for reliable switching between two independent power sources in demanding commercial, industrial, and critical power applications. It enables remote source transfer through external control systems such as PLCs, generator controllers, SCADA systems, and Building Management Systems (BMS), providing efficient centralized power management.
Featuring a 400A rated current and 4-pole configuration, the NR04004 provides complete switching of three phases and neutral, ensuring enhanced electrical isolation, operational safety, and uninterrupted power transfer. Built on the proven Class PC transfer switch platform, it delivers dependable switching performance, long service life, and high electrical endurance.
The switch incorporates a three-position mechanism (Source I – OFF – Source II), allowing secure transfer operations and maintenance isolation. Its rugged construction and compliance with IEC 60947-6-1 standards make it suitable for mission-critical power systems requiring reliable source changeover control.
• Genuine WATSN Remote Transfer Switch
• Model: NR04004
• Rated Current: 400A
• 4-Pole configuration (3P+N)
• Remote-operated transfer switch (RTSE)
• Class PC transfer switch technology
• Three-position operation (Source I – OFF – Source II)
• Remote electrical control capability
• Open transition switching operation
• Suitable for PLC, BMS, and SCADA integration
• High electrical and mechanical durability
• Panel-mounted design for industrial installations
• IEC 60947-6-1 compliant
| Parameter | Specification |
|---|---|
| Product Type | Remote Transfer Switch (RTSE) |
| Model Number | NR04004 |
| Series | WATSN |
| Rated Current (Ie) | 400A |
| Number of Poles | 4 Pole |
| Rated Operational Voltage | 400V AC |
| Frequency | 50/60 Hz |
| Operation Type | Remote Electrical Operation |
| Transfer Switch Class | PC Class |
| Utilization Category | AC-33B |
| Transfer Type | Open Transition |
| Operating Positions | Source I – OFF – Source II |
| Rated Insulation Voltage (Ui) | 800V |
| Rated Impulse Withstand Voltage (Uimp) | 8kV |
| Mounting Type | Panel Mounted |
| Standard Compliance | IEC 60947-6-1 |
| Application | Remote Power Source Changeover |
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