Couldn't load pickup availability
About the Product
Engineered for marine, RV, and off-grid systems, the Mastervolt CombiMaster 12/1500 Inverter/Charger combines a true sine-wave inverter, a high-performance battery charger, and automatic AC transfer in a compact, lightweight package.
With 12 V DC input and 120 V AC output, it delivers continuous 1500 W, 2250 W peak, and up to 3000 W surge to start heavy and sensitive loads with ease. Its true sine-wave output and cos phi 1 ensure smooth operation of electronics, appliances, and motors.
- Powerful, efficient inverter: True sine wave output, 120 V, configurable 50/60 Hz, continuous 1500 W, peak 2250 W, surge 3000 W.
- Smart battery charging: Intelligent 3-step+ charger for faster, safer charging; input 90–140 V; max input current 9 A; up to 60 A charge current at 14.25 V (configurable); battery temperature sensor included; automatic voltage sensing; energy-saving mode 10 W.
- Automatic transfer & Power Assist: Automatic switching between mains, generator, and inverter output; transfer speed 10 ms; Power Assist prevents tripping on weak land lines or small generators; wide/narrow transfer voltage range options.
- Wide compatibility & integration: Generator compatible; MasterBus, CZone, and NMEA 2000 communication for monitoring and system integration; conformal coating for humidity protection; E-mark certified; heavy-duty connections for quick installation.
- Robust safety & reliability: IP23 protection, galvanic isolation, over-temperature protection, rugged design tailored for continuous operation; designed with user-friendliness and reliability in mind.
- Compact, lightweight design: Dimensions 14.6 x 11.2 x 6.1 inches; weight 15.2 lb; ideal for space-constrained installations.
Designed to prevent power dips and outages, the CombiMaster offers seamless power when connected to shore power, generator, or battery bank, delivering dependable performance and value for money for marine, RV, and stationary use.
Take control of your power with Mastervolt CombiMaster 12/1500 and enjoy worry-free operation, intelligent charging, and effortless integration with your existing monitoring networks.
| Specifications sine wave inverter | |
| Nominal DC voltage | 12 V (10.2—16 V) |
| Output voltage | 120 V |
| Output frequency | 60/50 Hz (configurable) |
| Output waveform | true sine |
| Continuous power at 40 °C / 104 °F, cos phi 1 | 1500 W |
| Peak power (30 sec) | 2250 W |
| Surge power (5 sec) | 3000 W |
| Max. efficiency | 93 % |
| Battery no-load power consumption | 30 W (on mode) / < 1 mA (off mode) |
| Energy saving mode consumption | 10 W |
| Synchronise with mains | yes |
| Specifications battery charger | |
| Input voltage range | 90—140 V |
| Max. input current | 9 A (adjustable) |
| Max. charge current at 40 °C / 104 °F | 60 A at 14.25 V (configurable) |
| Battery temperature sensor | yes, included |
| Battery voltage sense | automatic compensation |
| Specifications transfer system | |
| AC input | 30 A (switched) |
| AC output | 40 A |
| AC input fuse | yes |
| Transfer speed | 10 ms |
| Transfer voltage range | wide: 70—140 V / narrow: 90—140V |
| Transfer frequency range | 40-65 Hz |
| General specifications | |
| Galvanic isolation | yes |
| Display/read-out | LED display |
| Dimensions, hxwxd | 14.6 x 11.2 x 6.1 inch |
| Weight | 15.2 lb |
| Compliance | ABYC A31, UL1236, UL1741, SAEJ1171, FCC class B |
| Technical specifications | |
| Charge characteristic | UoUo, automatic / 3-step+ for flooded, Gel/AGM and MLI, configurable |
| Recommended battery capacity | 120-600 Ah (based on gel batteries, may differ for other types) |
| Ground relay | yes, configurable by means of mechanical jumper |
| Temperature range (ambient temp.) | -13 °F to 140 °F |
| Cooling | vario fan |
| Protection degree | IP23 (vertical mounting) |
| Safety class | IEC protection class I |
| Humidity protection | conformal coating, max. 95 % relative humidity, non condensing |
| Protections | over-temperature, overload, short circuit, high/low battery voltage |
| Power Assist | yes, supports AC input with power from the battery |
| Power Sharing | yes, allows you to select AC Input fuse setting |
| MasterBus compatible | yes |
| CZone / NMEA 2000 compatible | yes |
Text block
