AC Master 12/300, 12/500, 24/300, 24/500 PURE SINE WAVE INVERTER USER AND INSTALLATION MANUAL 1000014304/01 To download this manual in other languages, please visit our website: www.mastervolt.
AC Master 12/300, 12/500, 24/300, 24/500 – User and Installation Manual Table of contents 1 Safety instructions ........................................................................................................................... 3 2 Liability ............................................................................................................................................ 3 3 Disclaimer .................................................................................................
AC Master 12/300, 12/500, 24/300, 24/500 – User and Installation Manual 3 1 Safety instructions WARNING! Read the entire manual before using the AC Master. Keep the manual in a secure place. Use the AC Master following the instructions and specifications stated in this manual. Connections and safety features must be executed according to the locally applicable regulations.
AC Master 12/300, 12/500, 24/300, 24/500 – User and Installation Manual 6 Product description The AC Master is a sine wave inverter. The AC Master converts DC power from the battery into AC output power. Identification label Important information required for service or maintenance can be derived from the identification label.
AC Master 12/300, 12/500, 24/300, 24/500 – User and Installation Manual Connections L PE N 1 2 3 4 5 Main switch DC fuse(s) DC input cables (1.5m) Chassis ground terminal (M6) AC output socket (IEC) 7 Installation instructions This section provides a step by step instruction of the basic installation of the AC Master. Step 1. Disconnect power supplies. Step 2. Switch OFF the AC Master.
AC Master 12/300, 12/500, 24/300, 24/500 – User and Installation Manual Step 3. Select a location to install. • Install the AC Master in a well-ventilated room protected against rain, snow, spray, vapour, bilge, moisture and dust. • Ambient temperature: -20 to 40°C / -4 to 104°F. • Never use the AC Master at a location where there is danger of gas or dust explosions. Mount the AC Master vertically with the cables hanging downwards and so that airflow through the ventilation openings is guaranteed.
AC Master 12/300, 12/500, 24/300, 24/500 – User and Installation Manual 7 Step 7. Connect the battery to the DC input. Do not place the fuse yet! Step 8. Wire the IEC plug. See also figure Connections on page 5. Front view of the IEC C14 male plug Step 9. Connect the AC load. For safe installation: • The neutral conductor (N) of the AC output of the AC Master must be connected to the safety ground (PE/GND). • Integrate a ground fault circuit-interrupter (GFCI/RCD) in the wiring of the AC output.
AC Master 12/300, 12/500, 24/300, 24/500 – User and Installation Manual 8 Operation Switching ON and Power Saving Move the main switch to position I (ON) or II (POWER SAVING). Power saving mode scans the output and compares the detected load to the threshold value (40W). If a load is detected which is below the threshold value, the inverter switches to power saving mode. If a load is detected higher than the threshold value, the inverter is switched on.
AC Master 12/300, 12/500, 24/300, 24/500 – User and Installation Manual 9 9 Troubleshooting Problem Possible cause What to do? All LED indicators are off Main switch is set to the OFF position. Set the main switch in ON position. DC fuse(s) blown. Replace the fuse(s). AC feedback, feedback protection has caused the inverter to switch off. Remove AC power source for the AC output and switch on the AC Master. To avoid damage do not install in parallel with another AC source.
AC Master 12/300, 12/500, 24/300, 24/500 – User and Installation Manual 10 Specifications AC Master 12/300-230V AC Master 24/300-230V 28010302 28020302 Output voltage 230Vac (± 5%) – 50Hz (± 0.1%) 230Vac (± 5%) – 50Hz (± 0.1%) Output waveform True sine True sine Nom. battery voltage 12V 24V Cont. power at 25°C, cos phi 1 300W 300W Cont.
AC Master 12/300, 12/500, 24/300, 24/500 – User and Installation Manual 11 AC Master 12/500-230V AC Master 24/500-230V 28010502 28020502 Output voltage 230Vac (± 5%) – 50Hz (± 0.1%) 230Vac (± 5%) – 50Hz (± 0.1%) Output waveform True sine True sine Nom. battery voltage 12V 24V Cont. power at 25°C, cos phi 1 500W 500W Cont.
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