| Item | Specification |
| Model | EPM3-100E |
| Rated Current (Ie) | 32A |
| Insulation Voltage (Ui) | AC690V, 50Hz |
| Rated Voltage (Ue) | AC220V |
| Class | PC Class (No short-circuit making or breaking capability) |
| Utilization Category | AC-33iB |
| Poles | 4P |
| Version | Mains Power Version / Photovoltaic Version |
| Rated Frequency | 50/60Hz |
| Electrical Life | 20,000 Cycles |
| Mechanical Life | 50,000 Cycles |
| Rated Short-Circuit Current (Iq) | 50kA |
| Short-Circuit Protection | RT16-00-63A |
| Rated Impulse Withstand Voltage (Uimp) | 8kV |
| Control Voltage | AC110V |
| Auxiliary Circuit | AC220V / 50Hz, Life ≥ 5 Years |
| Contact Transfer Time | < 50ms |
| Operating Transfer Time | < 50ms |
| Return Transfer Time | < 50ms |
| Power-Off Time | < 50ms |
| Terminal Type | Circular Crimp Terminal |
| Standard | IEC 60947-8-1 |
| Brand | EPEPRO |
| Installation Method | 35mm DIN Rail Mounting |
Product Description
EPM3-100E Series Automatic Transfer Switch (ATS) is a compact micro household dual power automatic transfer switch designed for reliable power switching between the main power source and backup power source. The device continuously monitors the main power supply and automatically transfers the load to the backup source when the primary supply fails or operates outside the preset voltage range, ensuring uninterrupted power supply and enhanced electrical safety.
The switch adopts a modular design with DIN rail mounting, making installation convenient and space-saving. It is suitable for residential, commercial, photovoltaic (PV) systems, communication equipment, and other applications requiring continuous power supply.
Key Features
✔ Automatic transfer between main and backup power sources
✔ Fast switching time less than 50ms
✔ PC-class ATS for reliable power continuity
✔ Available in 2P, 3P, and 4P configurations
✔ Suitable for mains power and photovoltaic systems
✔ Compact DIN rail installation design
✔ High short-circuit withstand capacity up to 50kA
✔ Long service life: 20,000 electrical operations and 50,000 mechanical operations
✔ Complies with IEC 60947-8-1 standards
