The TOMZN 4P 125A Generator DIN Rail eWeLink WiFi Smart ATS Timer is an advanced automatic transfer switch designed to provide seamless and uninterrupted power switching between the main electricity supply and a backup generator or secondary power source. Built for residential, commercial, and industrial power management systems, this smart ATS device ensures stable electricity supply during power outages while offering intelligent remote monitoring and control through the eWeLink mobile application.
Designed with a 4-pole configuration and a high 125A current rating, this automatic transfer selector switch is suitable for handling heavy electrical loads safely and efficiently. It automatically detects power failure from the primary source and instantly switches to the backup power supply, reducing downtime and protecting sensitive appliances, equipment, and electrical systems from interruption.
The integrated WiFi smart control system allows users to monitor power status, set timers, and control switching functions remotely via smartphone. With DIN rail mounting support, installation is convenient and compatible with standard electrical distribution boxes and control panels.
Key Features
- Automatic transfer switching between main power and generator supply
- Supports uninterrupted power transition during outages
- 4-pole (4P) design for enhanced electrical isolation and safety
- High current capacity of 125A suitable for large electrical loads
- Compatible with 230V power systems
- Built-in WiFi connectivity with eWeLink smart app support
- Remote monitoring and control through smartphone
- Timer scheduling function for automated operations
- DIN rail installation for easy mounting inside electrical panels
- Fast switching response for continuous power supply stability
- Suitable for homes, offices, shops, factories, and backup generator systems
- Intelligent control system improves convenience and energy management
- Durable flame-retardant housing for improved safety and reliability
- Compact and space-saving industrial design
Specifications
- Brand: TOMZN
- Product Type: Smart Automatic Transfer Switch (ATS)
- Pole Configuration: 4P
- Rated Current: 125A
- Voltage: 230V
- Connectivity: WiFi
- App Support: eWeLink
- Installation Type: DIN Rail Mount
- Function: Dual Power Automatic Transfer Switching
- Application: Generator and Main Power Switching
- Material: High-quality insulated and flame-retardant components
- TOMZN Night light series TOQ7e Mini ATS Dual Power Automatic Transfer Switch is PC Level,  new developed micro household power transfer switch. When the normal city power is abnormal, the back up power works at once, no Interrupt,ensures the continuirty, reliability, and safety of power supply.Â
Product Parameter
Rated supply voltage Us: AC (L N) 220V-230V 50Hz-60Hz
Working condition: 85% Us~110% Us
Switching time:Â <50ms
Action time:Â <50ms
Rated impulse withstand voltage (kV):8kV
Electrical Life: 2000 times
Mechanical Life: 5000 times


















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