Victron Energy
Victron MultiPlus-II 24/3000/70-50 120V Inverter/Charger — UL 458 Marine/RV (24V Single-Phase 120V)
Victron MultiPlus-II 24/3000/70-50 120V Inverter/Charger — UL 458 Marine/RV (24V Single-Phase 120V)
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The Victron MultiPlus-II 24/3000/70-50 120V is the single-phase 120V version of the popular 24V/3000VA MultiPlus-II — 3000VA pure sine output (2400W continuous), 70A multi-stage charger, 50A AC transfer switch, single 120V AC output, UL 458 certified, ESS-capable. The right pick for 24V boats with 30A shore power, off-grid cabins, and single-phase 120V applications.
Single-phase 120V vs Split-phase 2x120V — which one?
| Single-phase 120V (this model) | Split-phase 2x120V | |
|---|---|---|
| SKU | PMP242305102 | PMP242305132 |
| AC output | 1× 120V | 2× 120V (split-phase 240V) |
| Shore power | 30A shore connection | 50A split-phase shore connection |
| 240V household appliances | No (needs external autotransformer) | Yes (built-in) |
| Price | $997.05 | $1145.80 |
Choose Single-phase 120V if: your boat has 30A (not 50A) shore power, you don't have 240V household appliances, or you want the lower-cost option.
Choose Split-phase 2x120V if: you have 50A split-phase shore power, you have 240V appliances (well pump, dryer, water heater), or you're building a residential off-grid system.
What 3000VA powers
- Marine air conditioner (mid-size unit, with PowerAssist)
- Microwave + coffee maker simultaneously
- Mid-size refrigerator + entertainment + lighting
- 120V power tools (table saw, miter saw on intermittent)
- Full home office + entertainment center
- Whole-cabin "normal living" load on a yacht or off-grid setup
- Off-grid cabin essentials including pump + refrigeration + small kitchen
Why the MultiPlus-II 24/3000/70-50 120V
- 3000VA / 2400W pure sine inverter — substantial AC capability for 24V system
- 70A multi-stage charger — charges a 400Ah 24V bank in ~7 hours from shore
- 50A AC transfer switch — automatic shore/generator transfer
- PowerControl + PowerAssist — boost limited shore power
- ESS-capable — supports grid-tied energy storage system mode
- UL 458 certified — legal for mobile and marine use
- VE.Bus networking — parallel or 3-phase capable with additional units
- Built-in current sensor — enables advanced ESS features
- Multi-stage adaptive charging — AGM, Gel, Flooded, LiFePO4
Specifications
| Nominal DC input voltage | 24V (operating range 19–33V) |
|---|---|
| Continuous AC output | 2400W (3000VA) |
| Peak AC output | 6000W (short duration) |
| AC output waveform | Pure sine wave |
| AC output voltage | 120V single-phase ± 2%, 60Hz ± 0.1% |
| Charger output current | 70A |
| AC transfer switch | 50A |
| Standards | UL 458 (mobile/marine certified) |
| ESS (grid-tie) capable | Yes |
| Networking | VE.Bus (parallel and 3-phase capable) |
| Battery chemistry | AGM, Gel, Flooded, LiFePO4 (configurable) |
| Cooling | Variable-speed temperature-controlled fan |
| Operating temperature | -40°C to +65°C (full power up to 40°C) |
| Manufacturer SKU | PMP242305102 |
| Warranty | 5 years (manufacturer) |
Recommended applications
- Sailboat / trawler with 30A shore power — single-phase 120V is all you need
- 24V off-grid cabin — single-phase 120V is plenty for most installs
- 30A RV — single-phase 120V matches the shore connection
- Backup power for small business — 24V battery bank, single-phase load
- Mobile commercial — single-phase mobile setups
Every Jonsson Tech order ships within 5 days nationwide from our Houston, Texas warehouse. Free pre-purchase consultation — call 346-574-9652 or email support@jonssontech.net if you're unsure whether single-phase or split-phase is right for your install.
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