Tomzn Handel Type Changeover ATS Switch 250A

Heavy-Duty Dual Power Switching for Industrial and Commercial Backup Systems

The Tomzn TOQ5-250/4P Handle Type Automatic Transfer Switch is a robust 4-pole ATS designed to manage seamless switching between two AC power sources in high-load three-phase systems. With a rated current capacity of 250A, it is ideal for commercial, industrial, and large residential backup applications.

Built with manual/automatic control modes and a secure handle mechanism, this ATS ensures reliability and operator control during maintenance or emergencies.

 Key Specifications:

• Model: TOQ5-250/4P
• Rated Current: 250A
• Phase Type: 3-Phase 4-Pole (A, B, C, N)
• Rated Working Voltage: 400V AC (50/60Hz)
• Control Voltage: 220V AC
• Insulation Voltage: 800V AC
• Impulse Withstand Voltage: 6kV
• Switching Time: <2.5 seconds
• Operation Modes:
• Automatic (auto switch between power sources)
• Manual (control via handle

 Application and Use:

• Automatically prioritizes Normal Power
• Switches to Reserve Power during outages
• Ideal for industrial machinery, commercial buildings, backup generators, and solar systems