125A 4-Pole Automatic Transfer Switch (ATS) – Generator Power, 400/230V

The TRONIC TQ3S 125A 4-Pole Automatic Transfer Switch (ATS) is designed for reliable switching between normal and alternative power sources, making it suitable for generator backup and power distribution applications. This model is rated at 125A and features a 4-pole configuration for source transfer and load control.

The TQ3S series is designed for AC 50/60Hz power systems with a rated operating voltage of 400V/230V. It supports both automatic and manual switching, with three main contact positions: Normal, Alternative, and OFF. The OFF position allows the lower circuit to be isolated during maintenance.

The unit supports automatic switching and recovery functions depending on the selected controller configuration, with options for source failure/voltage-loss protection and generator-related applications. The product label identifies this model as TQ3S012540125G, with “Power to Generator” configuration.

The TRONIC TQ3S 125A ATS is suitable for electrical installations requiring automatic or manual transfer between a normal power source and a generator or alternative source.

• Generator backup power installations
• Backup and standby power systems
• Power distribution and control panels
• Facilities requiring automatic source switching
• Generator and alternative power supply systems