Welrok FS6-63 Phase Switcher

Welrok FS6-63 Phase Switcher — an automatic power supply switching device for three-phase networks when voltage asymmetry occurs.

Primary Purpose: Designed to protect electrical equipment from operation during phase imbalance and to automatically switch the load to a backup power source.

Technical Characteristics:

• Rated Current: 63 A
• Supply Voltage: 3×400 V + N (three-phase network)
• Frequency: 50 Hz
• Protection: voltage monitoring on all three phases
• Functions: monitoring of phase asymmetry, disconnection when exceeding permissible voltage deviation

Application Areas:

• Industrial and commercial facilities
• Systems with backup generator or dual power supply
• Distribution panels and electrical switchboards
• Protection of sensitive equipment

Features:

• Fast response when phase imbalance is detected
• Reliable switching of high currents
• Convenient installation on standard DIN-rail
• Contacts with increased wear resistance

The switcher ensures continuous power supply to critical equipment when voltage balance in the main network is disrupted.