Magnum Energy MS4048-L | 4,000W 48V Pure Sine Wave Inverter/Charger
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Description
Magnum Energy MS Series 4,000W 48V Pure Sine Wave Inverter/Charger — built for those who demand reliable, utility-grade power in the most challenging off-grid, mobile, and backup environments.
Key Features
- Pure Sine Wave Output: Delivers clean, stable 120VAC power at 60Hz, safe for sensitive electronics and demanding loads.
- Power Factor Corrected (PFC) Charger: Draws 25–30% less AC current from a generator compared to standard chargers, maximizing efficiency.
- Battery Profile Presets: Supports Lithium Iron Phosphate (LFP), Gel, Flooded, AGM1, and AGM2 battery profiles via compatible remote controls.
- Versatile Mounting Options: Installs on a shelf, bulkhead, or wall with 360° DC connection terminals for flexible, simplified wiring.
- Multi-Stage Charging: Five-stage charging system includes Bulk, Absorb, Float, Equalize, and Battery Saver for optimized battery health.
The MS4048 is engineered for serious power users who need proven performance across backup, off-grid, RV, marine, and mobile applications. With up to 4,000 watts of continuous output and a peak efficiency of 94%, this inverter/charger handles heavy loads without compromise.
Durability is built into every layer of the MS4048. Conformal-coated PCBs, powder-coated chassis, and stainless steel fasteners deliver corrosion resistance in the harshest environments. Dual 92mm variable-speed brushless DC fans provide cooling from 0 to 120 CFM as demands rise.
System integration is seamless with an RS485 communication port, remote port compatibility, and support for accessories including the MagWeb, ME-RC, ME-ARC, and ME-MR remotes. ETL Listed to UL/cUL 458, UL 1741, and CSA C22.2 #107.1-01, the MS4048 meets the stringent standards required for both renewable energy and emergency vehicle installations.
Technical Specifications
| Specification | MS4048 / MS4048-20B |
|---|---|
| Continuous Output Power | 4,000 W |
| Battery Voltage | 48V (36–67.6 VDC) |
| AC Output Voltage | 120 VAC ± 5% |
| Output Frequency | 60 Hz ± 0.1 Hz |
| Total Harmonic Distortion (THD) | < 5% |
| Peak Inverter Efficiency | 94% |
| 5 Sec Surge Power | 8,500 W |
| 30 Min Surge Power | 4,750 W |
| Max Continuous Input Current | 133 ADC |
| AC Relay Transfer Time | 16 msecs (minimum) |
| Charger Continuous Output (25°C) | 60 ADC |
| Charger Efficiency | 85% |
| Power Factor | > 0.95 |
| Input Current (Rated Charger Output) | 30 AAC |
| Transfer Relay Capability | 60 ACC |
| Internal Cooling | Dual 92mm Brushless DC Fans (0–120 CFM) |
| Operating Temperature | -20°C to +60°C (-4°F to 140°F) |
| Operating Humidity | 0 to 95% RH Non-Condensing |
| Max Operating Altitude | 15,000 ft (4,570 m) |
| Dimensions (L x W x H) | 13.75" x 12.65" x 8.0" |
| Unit Weight | 55 lbs |
| Shipping Weight | 62 lbs |
| Warranty | 3 Years Parts and Labor |
| Certifications | ETL Listed UL/cUL 458, UL 1741, CSA C22.2 #107.1-01, KKK-A-1822E |
Return policy
Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.
Shipping
We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.
Manufacturing
Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.