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| Model | EP20-1448 PRO | EP20-2148 PRO | EP20-3548 PRO | ||
| Capacity | 2000VA/1400W | 3000VA/2100W | 5000VA/3500W | ||
| Display | LCD | ||||
| AC Mode | |||||
| Input voltage range | 145~275Vac | ||||
| Input frequency | 60/50Hz (Auto sensing) | ||||
| Output voltage range | 200~240Vac | ||||
| Overcurrent Protection | Breaker | ||||
| Inverter Mode | |||||
| Output voltage range | 220Vac±5% | ||||
| Output frequency | 50±0.5Hz / 60±0.5Hz (Auto Sensing) | ||||
| Power factor | ≥0.6 | ||||
| Output wave form | Pure sine wave | ||||
| Transfer time | Typical 2~6ms, Max.10ms. | ||||
| Overload capability | Automally shut down in 60sec while with 110% load, and shut down in 5sec while with 120% load | ||||
| Overcurrent Protection | System shuts down automatically within 20ms | ||||
| BATTERY | |||||
| Battery model | Sealed maintenance-free lead-acid batteries | ||||
| DC Voltage | DC 48V | ||||
| QTY & capacity of battery | External batteries, capacity depends on user’s choice. | ||||
| Charging current | 5A/10A(Optional) | ||||
| Charging period | Depends on the batteries connected. | ||||
| PROTECTION | |||||
| PROTECTIONS | 1. Auto re-starts when AC recovers | ||||
| 2. Automatic charging (offline charging) | |||||
| 3. Battery low voltage protection | |||||
| 4. Overload & Short circuit protection | |||||
4.Over current protection (Breaker for AC mode; System automaticlly shut down wihin 20ms in Inverter mode). | |||||
| PHYSICAL | |||||
| Unit dimension (mm) | 455*195*330 | ||||
| Net weight (1pc, kg) | 26.6 | 32.7 | 41.5 | ||
| MANAGEMENT | |||||
| USB | Optional | ||||
1. MUST Factory located in Huanan Chuanggu Science and Technology Park, Chancheng District, Foshan City. We are a high-tech manufacturer specializing in R&D, production, sales and service of industrial automation, new energy and power electronics related products.
2. MUST main products include: (UPS), Inverter, Photovoltaic Controller, Photovoltaic Inverter, Photovoltaic control inverter integrated machine, photovoltaic energy storage inverter, photovoltaic grid-connected inverter, Photovoltaic power generation system, photovoltaic pump system, microcomputer room system, dedicated loss converter, servo drive, servo motor, servo system
3. MUST's products have passed CE, SAA, SONCAP, SGS, Tell certification and other safety certifications, ISO: 9001, ISO: 14000 and other quality management system certification,
4. MUST products are exported to Spain, Italy, Russia, Australia, the Middle East, Ukraine, South Africa, Nigeria, Pakistan and other countries to provide customers with quality and efficient services.






Q1: How to choose a right UPS?
A1:Tell us your demand, then our sales will recommend a suitable UPS to you.
Q2: What's the different between offline ups and line interactive ups?
A2: The true LINE INTERACTIVE design is in fact a combination of OFFLINE & ONLINE, in which the inverter plays a dual role of charging the battery when mains supply is present as well as regulating the output voltage and working as a normal inverter in absence of mains supply, so to the user it appears like an ONLINE System. Line Interactive UPS offers enhanced power protection over the basic Offline designs by providing additional line conditioning.
Q3: How about the delivery time?
A3: 7 days for sample; 25 days for bulk order.
Q4: What is the warranty of UPS?
A4: One year warranty on Must-UPS product.
Q5: How to solve the technical problem?
A5: 24 hours after-service consultancy just for you and to make your problem to solve easily.
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