125A Generator Transfer Switch, 3P Heavy Duty Automatic Transfer Switch, 120/240V Dual Power Safety for Indoor or Outdoor Use (125A)

• Automatic transfer switch: 3 Pole, Input voltage: 120V, load voltage: 240V. It monitors both primary and backup power sources. It switches between mains and inverter power in 0.05 seconds, guaranteeing uninterrupted power supply. If the primary power fails, the backup source kicks in instantly—ensuring continuous, reliable, and safe power. Once the primary power is restored, the 125A 120V ATS automatically switches back to the primary source.
• Protective housing: The surface is reinforced with polyester powder coating for rust and corrosion resistance and durability. Compared to other products, generator transfer switch box dimensions are 10.1 x 6.1 x 12.4 inches, providing extra ample space. This means there’s no overcrowding when installing electrical circuits, significantly reducing the risk of short circuits.
• Safety switches: It can be switched manually/automatically freely with an indicator light. Dual power transfer switch comes with automatic/manual operation modes and built-in status indicators. The smart control system auto-detects power sources and has one-touch reset, while visual indicator lights deliver real-time power status monitoring—all to ensure uninterrupted power supply via the automatic transfer mechanism.
• Installation: Complete installation accessories, with silicone pads, reserved hole diameter 0.98in-1.37in. Compared with other products, it is easier to install and requires no additional drilling.
• Lock: Configured with a combination lock to protect circuits from tampering. No delay exists during power source switching between main and auxiliary inputs, which may lead to electrical arcing/collisions. For safe and reliable use, we strongly recommend utilizing this product only with an external delay device or additional protective system installed.

---

Product description