COV020‑D is a high‑power 4‑channel intelligent electronic converter, widely popular in the Middle East and Africa markets. Engineered for areas with frequent power cuts and unstable voltage, it delivers automatic multi‑power switching, over/under‑voltage and overload protection, keeping critical equipment running safely and continuously in unattended environments.
Applications
Ideal for hospitals, hotels, supermarkets, factories and public facilities with a total resistive load ≤13,200W.
For inductive loads including refrigerators, air conditioners, freezers, water pumps and motors, we recommend using no more than 60% of the rated power for safe and reliable operation.
Key Features
1. 4‑Way Automatic Power Switching
Supports 4 input sources: mains, backup power 1, backup power 2 and generator.
Built‑in priority logic: L1 > L2 > L3 > L4.
Automatically switches to the next available power source without manual operation, ensuring uninterrupted supply.
2. Full Electrical Protection
- Undervoltage protection: cuts off at 120VAC
- Overvoltage protection: cuts off at 280VAC
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Overload protection: 60A for L1/L2; 35A for L3/L4
Protects devices from damage caused by voltage surges, dips or excessive current.
3. Intelligent Delay & Recovery
Automatically reconnects power after a 7‑second delay when voltage returns to normal, avoiding rapid switching and protecting compressors and motors.
4. Generator Auto‑Stop Function
When the generator (L4) is in use and any other power source resumes, the unit triggers the auxiliary switch to turn off the generator automatically, reducing noise and saving fuel.
5. Real‑Time Monitoring & Alarm
Monitors load current continuously and cuts power if overloaded.
Clear digital display shows real‑time voltage and current.
Visual indicators for overload, overvoltage, undervoltage plus buzzer alarm for quick status recognition.
6. Rugged & Safe Design
- Control core: high‑speed low‑power microprocessor
- Output: high‑power magnetic latching relay
- Housing: PC flame‑retardant plastic, compliant with UL94‑5VA
- Operating temperature: ‑5℃ to +55℃
- Compact, modular design for easy installation
Technical Specifications
- Working Voltage: 220VAC 50/60Hz
- Undervoltage Protection: 120VAC
- Overvoltage Protection: 280VAC
- Max Current: L1/L2 ≤60A; L3/L4 ≤35A
- Delay Time: 7 seconds
- Warranty: 1 year (indicator off after 1 year of powered use)
- Operating Environment: ‑5℃ ~ +55℃
- Product Dimensions: 134×197×42mm
- Weight: 537g
- Housing Material: PC flame retardant
User‑Friendly Controls
- Short press: turn buzzer ON / OFF
- Long press: display remaining warranty time
Why Choose COV020-D?
Designed for the harsh power conditions of the Middle East and Africa, COV020‑D combines intelligent switching, strong protection, high durability and easy operation. It is the trusted choice for reliable backup power management in commercial, industrial and public applications.
