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GLD ATS 3 Pole 4 Pole 160A 250A 400A 630A 800A 1000A 1200A 3P 4P Dual Power Automatic Transfer Switch

Type:PC
Brand Name:Newtrend or OEM brand
Place of Origin:China
Province:Zhejiang
Model Number:NH40SZ
Number of Pole:4
Rated Current:20A ~ 3150A

Automatic Changeover Switch Guide for Backup Power Switching

Automatic changeover switches are used in systems that need automatic transfer between normal power and backup source. Buyers typically compare current rating, switching logic and system configuration before selecting a model for backup power projects.

Selection Tips

  • Confirm current capacity and transfer logic before selection.
  • Choose products according to the source switching requirement of the project.
  • Check whether the system is single-phase or multi-phase before ordering.

Why Buyers Choose This Category

  • Clear specifications for project matching
  • Suitable for wholesale, OEM and export supply
  • Improves content depth for search and buyer decisions
Frequently Asked Questions
Q: What is the main advantage of an automatic changeover switch?A: It allows automatic transfer between power sources without requiring manual intervention during supply failure.
Q: Where are automatic changeover switches commonly used?A: They are widely used in backup power systems, generator transfer systems and critical electrical supply applications.