The Mastervolt Mass Sine Ultra 24/4000 is an inverter with a 24 V system, a peak draw of 200 A, a weight of 15 kg 33.1 lb and an ingress rating of IP23.
Last updated: 8 October 2026
At a glance
What this device draws
- System voltage
- 24 V
- Max amp draw
- 200 A
- Continuous draw
- Input current at nominal load only; not called continuous
“Nominal battery voltage 24 V”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000
“Input current (nominal load) 200 A”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000
“Input current (nominal load) 200 A”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000
Battery and charging
- What it draws on standby
- 660 mA – 16 W
- Low-voltage cutoff
- 19-22 V, dynamic window V
“No-load power consumption (ON mode) 660 mA – 16 W”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000
“Low battery voltage, switches off at 19-22 V, dynamic window V”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000
Battery care and safety
- Operating temperature range
- -25 °C to 80 °C, derating > 40
- Ingress protection
- IP23
“Temperature range (ambient temp.) -25 °C to 80 °C, derating > 40”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000
“Protection degree IP23”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000
Size and fit
- Overall dimensions
- 472 x 318 x 178 mm 18.6 x 12.5 x 7.0 inch
- Stated weight
- 15 kg 33.1 lb
“Dimensions, hxwxd 472 x 318 x 178 mm 18.6 x 12.5 x 7.0 inch”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000
“Weight 15 kg 33.1 lb”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000
Other findings
- Max continuous power
- 4000 W
- Minimum cable size
- 70 mm²
- Minimum DC fuse
- 250 A
- Recommended battery capacity
- > 350 Ah
- Surge power
- 7000 W
“Continuous power at 40 °C / 104 °F, cos phi 1 4000 W”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000
“Minimal cable size 70 mm²”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000
“Minimal DC fuse (slow blow) 250 A”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000
“Recommended battery capacity > 350 Ah”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000
“Peak load 7000 W”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000
Certification claims
- Product compliance claim
- CE, ABYC, E-mark
“Compliance CE, ABYC, E-mark”
Source: mastervolt.com/products/mass-sine-ultra-24-v/mass-sine-ultra-24-4000