The Mastervolt CombiMaster 12/3000-100 (230 V) is an inverter with a 12 V system, a weight of 9.3 kg 20.5 lb, 100 A at 14,25 V (configurable) of charging current and an ingress rating of IP23 (vertical mounting).
Last updated: 8 October 2026
At a glance
What this device draws
- System voltage
- 12 V (10.2–16 V)
- Continuous draw
- Mastervolt publish no DC input current for this model
“Nominal DC voltage 12 V (10.2–16 V)”
Source: mastervolt.com/products/combimaster/combimaster-12-3000-100-230-v
“Continuous power at 40 °C / 104 °F, cos phi 1 3000 VA / 2600 W”
Source: mastervolt.com/products/combimaster/combimaster-12-3000-100-230-v
Battery and charging
- What it draws on standby
- 30 W (on mode) / < 1 mA (off mode)
- Output current
- 100 A at 14,25 V (configurable)
- Peak output
- 4500 VA / 3900 W
“Battery no-load power consumption 30 W (on mode) / < 1 mA (off mode)”
Source: mastervolt.com/products/combimaster/combimaster-12-3000-100-230-v
“Max. charge current at 40 °C / 104 °F 100 A at 14,25 V (configurable)”
Source: mastervolt.com/products/combimaster/combimaster-12-3000-100-230-v
“Peak power (30 sec) 4500 VA / 3900 W”
Source: mastervolt.com/products/combimaster/combimaster-12-3000-100-230-v
Battery care and safety
- Operating temperature range
- -25 °C to 60 °C, derating > 40
- Ingress protection
- IP23 (vertical mounting)
“Temperature range (ambient temp.) -25 °C to 60 °C, derating > 40”
Source: mastervolt.com/products/combimaster/combimaster-12-3000-100-230-v
“Protection degree IP23 (vertical mounting)”
Source: mastervolt.com/products/combimaster/combimaster-12-3000-100-230-v
Size and fit
- Overall dimensions
- 448 x 284 x 155 mm 17.6 x 11.2 x 6.1 inch
- Stated weight
- 9.3 kg 20.5 lb
“Dimensions, hxwxd 448 x 284 x 155 mm 17.6 x 11.2 x 6.1 inch”
Source: mastervolt.com/products/combimaster/combimaster-12-3000-100-230-v
“Weight 9.3 kg 20.5 lb”
Source: mastervolt.com/products/combimaster/combimaster-12-3000-100-230-v
Other findings
- Charge characteristic
- IUoUo, automatic / 3-step+ for flooded, Gel/AGM and MLI, configurable
- Max continuous power
- 3000 VA / 2600 W
- Recommended battery capacity
- 300-800 Ah (based on gel batteries, may differ for other types)
- Surge power
- 6000 VA / 5200 W
“Charge characteristic IUoUo, automatic / 3-step+ for flooded, Gel/AGM and MLI, configurable”
Source: mastervolt.com/products/combimaster/combimaster-12-3000-100-230-v
“Continuous power at 40 °C / 104 °F, cos phi 1 3000 VA / 2600 W”
Source: mastervolt.com/products/combimaster/combimaster-12-3000-100-230-v
“Recommended battery capacity 300-800 Ah (based on gel batteries, may differ for other types)”
Source: mastervolt.com/products/combimaster/combimaster-12-3000-100-230-v
“Surge power (5 sec) 6000 VA / 5200 W”
Source: mastervolt.com/products/combimaster/combimaster-12-3000-100-230-v
Certification claims
- Product compliance claim
- CE, E-mark, AZ/NZS
“Compliance CE, E-mark, AZ/NZS”
Source: mastervolt.com/products/combimaster/combimaster-12-3000-100-230-v