
Magnum MS4024-L, 24V Pure Sine Inverter/Charger
The Magnum Energy MS4024-L is a 24-volt, pure-sine inverter/charger built for heavy-duty use in RVs, mobile work rigs, backup systems, and off-grid power. It delivers high surge capability with clean 120VAC output, straightforward controls, and strong value for demanding applications.
For compliance and safety, the MS4024-L carries ETL listings to UL/cUL 458 for mobile use and UL 1741 / CSA C22.2 #107.1-01 for renewable installations, and it meets KKK-A-1822E emergency-vehicle requirements.
Installation is quick: wire the AC output to your distribution panel, land incoming shore/utility AC on the built-in terminal block, connect the 24V battery bank, and power on.
Key Features
- Pure sine output—safe for sensitive electronics and appliances
- PFC smart charger—cuts AC draw by ~25–30% vs. standard chargers
- Battery temp compensation for optimal, automatic charging
- Preset battery profiles including LFP (lithium), AGM, Gel, Flooded; customizable
- Flexible mounting (shelf, bulkhead—even inverted)
- Lightweight aluminum chassis for lower noise and corrosion resistance
- Expandable I/O: RS485 comms port, remote port, multiple connection points
- Oversized AC access cover with screw terminal block; 360° DC lugs for easy cable routing
- Front ON/OFF switch with clear LED status
- Upgraded 60A transfer relay for higher load pass-through
Inverter Specifications
- Input: 24 VDC
- Output: 120 VAC, 60 Hz
- Continuous Power: 4000 VA (33.3 A)
- Surge Power (5 sec): 5800 W (48.3 A)
- Waveform: Pure sine wave
- Transfer Relay: Two × 30 A legs
Charger Specifications
- AC Input: 120 VAC, 60 Hz
- DC Output Current: 105 A
- DC Output Voltage: 24 VDC
Dimensions & Weight
- Dimensions (L × W × H): 13.8″ × 12.7″ × 8.0″
- Inverter Weight: 55.0 lb.
- Shipping Weight: 63.0 lb.
Optional Accessories (purchase separately)
- Remote Control (ME-RC50): LCD interface to monitor and configure the inverter/charger and linked accessories
- Automatic Generator Start (ME-AGS-N): Starts/stops your generator based on battery state or load conditions
- Battery Monitor Kit (ME-BMK): “Fuel gauge” for your batteries with state-of-charge data on the remote
- MagWeb Wireless (ME-MW-W): Cost-effective web monitoring for Magnum systems over Wi-Fi
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