#28022500, AC Master 24/2500

Code: #28022500


  • Pure sine wave technology protects sensitive equipment.
  • Delivers full output at high peak power under the most demanding conditions.
  • Automatic power saving system for extended runtime.
  • Compact and lightweight design, saving valuable installation time.
  • Reliable and safe operation; protected against over-temperature, overload, short circuit, high or low battery voltage.
  • Variable speed fan for quiet operation at low power.
  • Repaired item

1,476.00 1,045.00 exc. VAT

In Stock


Reliable AC power for recreational and semi-professional use

These affordable 28022500 Mastervolt sine wave inverters convert 12 or 24 V battery voltage into reliable 230 V 50/60 Hz or 120 V 50/60 Hz grid power, making them ideal for recreational and semi-professional applications. The AC Master series is easy to install and delivers full output, even under the most demanding conditions. The pure sine wave technology provides an outstanding power quality, ensuring the correct functioning of sensitive equipment. The usage of high frequency switching technology eliminates any annoying humming and buzzing sounds.

Representing complete value for money, these ruggedly built inverters provide essential home comforts when you’re far from the nearest grid connection.


General specifications
Output voltage230/240 V – 50/60 Hz (selectable)
Output waveformtrue sine
Nominal battery voltage24 V
Recommended battery capacity≥ 135 Ah
Continuous power at 25 °C / 77 °F, cos phi 12500 W
Continuous power at 40 °C / 104 °F, cos phi 12500 W
Peak load (3 s)< 3000 W
Peak load (< 0.2 s)< 4000 W
AC connectionhardwired + plug connection EU (Schuko), or with NZ/AU plug (code 28422500)
Galvanic isolationyes
Efficiency88 %
Parallel configurationyes, up to 15 units
3-Phase configurationyes, 3 units
Display/read-outLED indication: battery voltage, load level, status
Alarmspotential free alarm contact
Dimensions, hxwxd283 x 436 x 128 mm
11.1 x 17.2 x 5.0 inch
Weight8 kg
17.6 lb
ComplianceCE, E-mark, RCM
Technical specifications
Technologyhigh frequency, input & output fully isolated
Low battery voltage, switches off at21 V
Low battery voltage, switches on at25 V
High battery voltage, switches off at33 V
High battery voltage, switches on at29 V
Input current (nominal load)125 A
No-load power consumption (ON mode)< 1.8 A
No-load power consumption (energy saving mode)< 0.7 A
Minimal DC fuse (slow blow)160 A
Minimal cable size50 mm²
Harmonic distortion typical< 5 %
Cos phiall power factors allowed
Transfer systemintegrated, automatic (inverter to grid: 8~10 ms, grid to inverter: 16~50 ms). Not for parallel & 3-phase operation (external transfer system possible)
Temperature range (ambient temp.)-20 °C to 60 °C, derating power > 40 °C
-4 °F to 140 °F
Coolingtemperature and load controlled fan
Protection degreeIP21, horizontal wall mounting
Protectionsover-temperature, overload, short circuit, high/low voltage, reverse polarity (fuse)
MasterBus compatibleyes, using a MasterBus AC Master Interface

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