Automatic Phase Changer
Uninterrupted Power Supply | Auto Phase Selection | Load Protection
An Automatic Phase Changer is a smart switching device that Automatically Selects the Healthiest Phase (R/Y/B) to ensure continuous power supply to single-phase loads in 3-Phase Connections. It is ideal for locations where one or more phases often fail or fluctuate, such as residential buildings, commercial complexes, and telecom towers.
This device eliminates manual intervention and ensures Seamless Switching between available phases, preventing downtime and protecting sensitive appliances.
Key Features
- Auto sensing of phase failure or low voltage
- Auto switching to the healthiest available phase
- Priority phase selection (user configurable)
- Auto mode selection
- Manual mode selection (Option)
- LED indicators for phase availability and selection
- Built-in over/under voltage protection
- Compact, wall-mount or panel-mount design
- Rugged relay/contactors or Contactor.
🔧 Technical Specifications
Parameter | Description |
Input Supply | 3-Phase, 4-Wire (415V AC ± 20%) |
Output Supply | Single Phase (230V AC) |
Load Capacity | 2kW to 15kW (customizable) |
Voltage Range | 170V – 270V (configurable) |
Switching Time | < 1 second |
Control Type | Microcontroller / Relay / Contactor-based |
Enclosure | IP42 / IP55 Powder-coated CRCA sheet (RAL 7032) |
Mounting Type | Wall / Panel Mount |
Protection | Under/Over Voltage, Phase Failure |
Compliance | IS 13947 / IEC 60947 |
Applications
- Residential Homes (EB–DG setups)
- Shops & Commercial Units
- Telecom Towers & ATMs
- Hospitals & Clinics
- Schools & Colleges
- Rural Areas with Poor Phase Supply
Need an Automatic Phase Changer?
Quantech Engineering, we understand that every project has unique power requirements. Whether you’re planning a new industrial setup, upgrading your electrical infrastructure, or seeking a tailored solution for voltage stabilization, metering, or power factor correction — our expert team is here to help. We offer end-to-end support including site inspection, technical consultation, custom panel design, and quotation, ensuring you get the right solution that matches your load, safety, and budget requirements. Don’t settle for generic systems — choose engineered panels built for long-term reliability, performance, and compliance.
📞 Get in Touch Today!
📱 Call Us: 99442 57047 / 96002 22840
📧 Email: quantechengg@yahoo.com
Automatic Phase Changer
Uninterrupted Power Supply | Auto Phase Selection | Load Protection
An Automatic Phase Changer is a smart switching device that Automatically Selects the Healthiest Phase (R/Y/B) to ensure continuous power supply to single-phase loads in 3-Phase Connections. It is ideal for locations where one or more phases often fail or fluctuate, such as residential buildings, commercial complexes, and telecom towers.
This device eliminates manual intervention and ensures Seamless Switching between available phases, preventing downtime and protecting sensitive appliances.
Key Features
- Auto sensing of phase failure or low voltage
- Auto switching to the healthiest available phase
- Priority phase selection (user configurable)
- Auto mode selection
- Manual mode selection (Option)
- LED indicators for phase availability and selection
- Built-in over/under voltage protection
- Compact, wall-mount or panel-mount design
- Rugged relay/contactors or Contactor.
🔧 Technical Specifications
Parameter | Description |
Input Supply | 3-Phase, 4-Wire (415V AC ± 20%) |
Output Supply | Single Phase (230V AC) |
Load Capacity | 2kW to 15kW (customizable) |
Voltage Range | 170V – 270V (configurable) |
Switching Time | < 1 second |
Control Type | Microcontroller / Relay / Contactor-based |
Enclosure | IP42 / IP55 Powder-coated CRCA sheet (RAL 7032) |
Mounting Type | Wall / Panel Mount |
Protection | Under/Over Voltage, Phase Failure |
Compliance | IS 13947 / IEC 60947 |
Applications
- Residential Homes (EB–DG setups)
- Shops & Commercial Units
- Telecom Towers & ATMs
- Hospitals & Clinics
- Schools & Colleges
- Rural Areas with Poor Phase Supply
Need an Automatic Phase Changer?
Quantech Engineering, we understand that every project has unique power requirements. Whether you’re planning a new industrial setup, upgrading your electrical infrastructure, or seeking a tailored solution for voltage stabilization, metering, or power factor correction — our expert team is here to help. We offer end-to-end support including site inspection, technical consultation, custom panel design, and quotation, ensuring you get the right solution that matches your load, safety, and budget requirements. Don’t settle for generic systems — choose engineered panels built for long-term reliability, performance, and compliance.
📞 Get in Touch Today!
📱 Call Us: 99442 57047 / 96002 22840
📧 Email: quantechengg@yahoo.com