Quick Answer
Victron Multiplus inverter/chargers require a careful and deliberate wiring process to ensure safe and efficient operation. The correct wiring configuration is critical, as improper connections can damage the unit or even cause a fire. A Victron Multiplus wiring diagram should be consulted to confirm the correct connections for your specific setup.
Wiring the Multiplus Inverter/Charger
The Victron Multiplus inverter/charger has three AC output connections: L1 (hot), L2 (hot), and N (neutral). These connections must be wired to a 230V AC circuit and must be protected by a suitable circuit breaker. A 16A or 32A MCB (miniature circuit breaker) is recommended for the AC output connections, depending on the rated current of your system.
Battery Bank Configuration
The Victron Multiplus inverter/charger can be configured for various battery bank configurations, including 12V, 24V, and 48V. The battery banks should be configured according to the manufacturer’s recommendations, with a minimum of two parallel-connected strings for redundancy. For example, a 24V system would require four parallel-connected 12V batteries, each with a capacity of 200Ah or more.
Generator Auto-Start Setup
To enable generator auto-start, the Victron Multiplus inverter/charger must be connected to a generator control system. The Multiplus can be configured to automatically start the generator when the battery state of charge falls below a user-defined threshold. This setup requires a generator control module, such as the Victron SmartGEN, and a compatible generator. The Multiplus must also be connected to a remote control module, which allows the user to manually start and stop the generator.
AC Output Connection Techniques
When wiring the AC output connections, ensure that the L1 and L2 connections are made to the hot terminals on the circuit breaker, and the N connection is made to the neutral terminal. The AC output connections should also be made in accordance with the local electrical code and regulations.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.