Victron Quattro-II 230V: Inverter/Charger Setup

Key Takeaways

• The basis of the Quattro-II is an extremely powerful sine inverter, battery charger and transfer switch in a compact casing..
• Dual source integration: Two AC inputs; integrated switch-over system between shore voltage and generating set.
• Independent dual wiring ports: The inverter/charger features two AC inputs (AC-in-1 and AC-in-2) for connecting two independent voltage sources..
• Automated source arbitration: The inverter/charger automatically selects the input where voltage is present. If voltage is present on both inputs, the inverter/charger selects the AC-in-1 input, to which normally the generating set is connected..
• Seamless blackout protection: In the event of a supply failure or when the generating set is switched off, the inverter/charger will switch over to inverter operation and take over the supply of the connected devices..
• High-speed electronic protection: This is done so quickly that the operation of computers and other electronic devices is not disturbed (Uninterruptible Power Supply or UPS functionality)..
• Auxiliary load shedding channel: Besides the usual uninterruptable output (AC-out-1), an auxiliary output (AC-out-2) is available that disconnects its load in the event of battery operation..
• Massive polyphase power scaling: Three units (or three sets of paralleled units) can be configured for three-phase output, to provide 72kW / 90kVA inverter power and more than 2100A (24V) or 1200A (48V) charging capacity..
• Intelligent generator overload management: The inverter/charger can supply a huge charging current. This implies heavy loading of the AC mains or generator. Therefore a maximum current can be set..
• Auxiliary control switchgear: The inverter/charger is equipped with a programmable relay. The relay can be programmed for different applications, for example as a starter relay for a generator..
• Heavy-duty chassis construction: Steel, blue RAL 5012 Protection category: IP21.
• Robust terminal block sizing: 230 VAC connections Screw terminals 13 mm² (6 AWG).

Dual AC Input Architecture & Automatic Transfer Switching

The Quattro-II is engineered for applications requiring seamless switching between two separate AC sources (such as a utility grid connection and an onboard or backup diesel generator).

The Victron Quattro-II 230V is a dual AC input inverter/charger with a high-speed transfer switch (3-phase scaling up to 90kVA / 1200A at 48V) housed in an IP21 steel chassis:

• Dual AC Inputs: AC-in-1 (Generator Priority), AC-in-2 (Grid/Shore), Auto Select Logic.
• Dual AC Outputs: AC-out-1 (UPS Sub-20ms Transfer), AC-out-2 (Auxiliary Non-Battery Shedding).
• System Control: PowerControl, Programmable Relay, 13 mm² Terminals, VE.Bus Comms.

Installation Rules & Electrical Source Arbitration

1. Dual AC Source Connection: Wire independent sources ensuring The inverter/charger features two AC inputs (AC-in-1 and AC-in-2) for connecting two independent voltage sources. utilizing Two AC inputs; integrated switch-over system between shore voltage and generating set.
2. Input Priority Setup: Observe that The inverter/charger automatically selects the input where voltage is present. If voltage is present on both inputs, the inverter/charger selects the AC-in-1 input, to which normally the generating set is connected..
3. Terminal Wiring: Terminate all AC conductors into the 230 VAC connections Screw terminals 13 mm² (6 AWG) enclosed within the Steel, blue RAL 5012 Protection category: IP21 housing.

Dual AC Output Routing & High-Speed UPS Protection

The Quattro-II features a dual-bus output architecture that safeguards essential loads while protecting the battery from non-essential depletion:

• Critical UPS Bus: Operates because In the event of a supply failure or when the generating set is switched off, the inverter/charger will switch over to inverter operation and take over the supply of the connected devices. where This is done so quickly that the operation of computers and other electronic devices is not disturbed (Uninterruptible Power Supply or UPS functionality)..
• Auxiliary Non-Critical Bus: Routes heavy appliances knowing Besides the usual uninterruptable output (AC-out-1), an auxiliary output (AC-out-2) is available that disconnects its load in the event of battery operation..
• Core Engineering Foundation: Delivers comprehensive reliability because **The basis of the Quattro-II is an extremely powerful sine inverter, battery charger and transfer switch in a compact casing.**.

PowerControl, Generator Starting & 3-Phase Scalability

• Supply Protection: Prevents shore or generator overloads because The inverter/charger can supply a huge charging current. This implies heavy loading of the AC mains or generator. Therefore a maximum current can be set..
• Automated Generator Control: Starts backup generation since The inverter/charger is equipped with a programmable relay. The relay can be programmed for different applications, for example as a starter relay for a generator..
• Industrial Scalability: Supports large commercial systems where Three units (or three sets of paralleled units) can be configured for three-phase output, to provide 72kW / 90kVA inverter power and more than 2100A (24V) or 1200A (48V) charging capacity..

Technical Specifications & Sizing Summary