Mastervolt 28021000 – AC Master Inverter 24/1000 Schuko – 24V DC to 230V AC Pure Sine Wave, 1000W
The Mastervolt AC Master 24/1000 Schuko is a reliable and compact pure sine wave inverter designed to convert 24V battery power into high-quality 230V AC. Engineered for recreational and semi-professional use, it ensures full performance under demanding conditions while protecting sensitive equipment from harmonic distortion and voltage instability.
Key Features:
- Pure sine wave output (200/220/230/240 V – 50/60 Hz selectable)
- Continuous power: 1000 W at 25 °C and 40 °C
- Peak loads: 1150 W (1 min), 1750 W (1 sec), 2000 W (3 sec)
- High efficiency at 94% for longer battery runtime
- Fully isolated input and output for safety and noise reduction
- EU Schuko plug AC connection for quick integration
- Energy-saving mode with ultra-low idle consumption (<0.05 A)
- LED indicators show battery level, load, and system status
- Automatic fan cooling based on load and temperature
- Compact form: 200 x 372 x 83 mm; weight: 3.3 kg
- MasterBus compatible via AC Master Interface
- Protected against overload, short circuit, voltage faults, and reverse polarity
General Specifications:
| Output Voltage | 200/220/230/240 V – 50/60 Hz (selectable) |
|---|---|
| Output Waveform | Pure sine wave |
| Nominal Battery Voltage | 24 V |
| Recommended Battery Capacity | >= 65 Ah |
| Continuous Power | 1000 W at 25 °C / 40 °C |
| Peak Load (1 min) | <1150 W |
| Peak Load (1 sec) | <1750 W |
| Peak Load (3 sec) | 2000 W |
| AC Connection | EU Schuko plug |
| Galvanic Isolation | Yes |
| Efficiency | 94% |
| Display | LED indication: battery, load, status |
| Alarm | Potential-free alarm contact |
| Dimensions (HxWxD) | 200 x 372 x 83 mm |
| Weight | 3.3 kg |
| Compliance | CE, E-mark, RCM |
Technical Specifications:
| Technology | High frequency, fully isolated |
|---|---|
| Low Battery Cut-Off | 21 V |
| Low Battery Restart | 25 V |
| High Battery Cut-Off | 33 V |
| High Battery Restart | 29 V |
| Input Current (Nominal Load) | 50 A |
| No-load Power (ON Mode) | <0.8 A |
| No-load Power (Energy Saving Mode) | <0.05 A |
| Minimum DC Fuse | 63 A (slow blow) |
| Minimum Cable Size | 16 mm² |
| Harmonic Distortion | <5% |
| Power Factor Compatibility | All power factors supported |
| Cooling | Temperature and load controlled fan |
| Operating Temperature | -20 °C to 60 °C (derating> 40 °C) |
| Protection Degree | IP21 (horizontal wall mount) |
| Protections | Over-temperature, overload, short circuit, high/low voltage, reverse polarity (fuse) |
| MasterBus Compatible | Yes, with AC Master Interface |
Applications:
- Campervans, RVs, and mobile workshops
- Recreational boats and off-grid cabins
- Powering tools, lighting, appliances, and sensitive electronics
- Service vehicles and solar-based energy setups








