Tomzn TOQ5-250/4P Handle Type 250A 4P AC Three Phase Dual Power Automatic Transfer Switch ATS

Tomzn TOQ5-250/4P Handle Type 250A 4P AC Three Phase Dual Power Automatic Transfer Switch ATS

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:

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Model: TOQ5-250/4P

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Rated Current: 250A

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Phase Type: 3-Phase 4-Pole (A, B, C, N)

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Rated Working Voltage: 400V AC (50/60Hz)

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Control Voltage: 220V AC

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Insulation Voltage: 800V AC

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Impulse Withstand Voltage: 6kV

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Switching Time: <2.5 seconds

• Operation Modes:

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Automatic (auto switch between power sources)

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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

⚠️ Note: This switch does not start or stop generators. It only switches power input. Power is interrupted briefly during switching (under 2.5 seconds).