The Multi-Way Automatic Transfer Switch with built in Protection (100A) selects between three or four single-phase 220V AC power sources and supplies the connected load from the selected source. It supports automatic priority-based operation as well as independent manual control of each input source.
Choose the required model:
- 3 Way : three power-source inputs
- 4 Way : four power-source inputs
Key Features
- Rated current up to 100A
- Two-pole switching of Live and Neutral
- Automatic source transfer with selectable priority
- Manual ON/OFF control for each input source
- Digital display of source voltages, load voltage and current
- Adjustable overvoltage, undervoltage and overcurrent protection
- Adjustable power-on, recovery and timer settings
- Over-temperature protection and audible fault alarm
- Voltage and current calibration
- DIN-rail mounting
- NC, COM and NO auxiliary terminals
Technical Specifications
- Rated current: 100A
- Rated supply: three or four 220V AC sources, depending on model
- Operating voltage range: AC 80–300V
- Frequency: 40–70Hz
- Overvoltage setting range: 120–300V or OFF
- Undervoltage setting range: 80–210V or OFF
- Overcurrent setting range: 1–100A or OFF
- Temperature protection range: 40–120°C
- Power-on and recovery delay range: 1–999 seconds
- Overcurrent action delay: 0.1–30 seconds
- Measurement accuracy: Class 0.5
- Rated insulation voltage: 450V
- Protection class: IP20
- Operating temperature: -5°C to +40°C
- Installation altitude: below 2,000m
- Approximate size: 210 × 117 × 72mm
Installation notice: Suitable upstream circuit protection is required for every source. Installation and wiring must be performed by a qualified electrician. Disconnect all power sources before installation or maintenance.







