Victron Energy Autotransformer 120/240V-32A

Technical Specifications  User manual 

Victron Energy Autotransformer – 120/240V, 32A

Step-Up, Step-Down & Split Phase Load Balancing

The Victron Autotransformer 120/240V – 32A is a versatile power management tool designed for step-up, step-down voltage conversion and split-phase output balancing. Ideal for off-grid, marine, and backup applications, it ensures optimal load distribution and maximizes system efficiency—especially where 120V and 240V loads coexist.

Key Applications:

• Step-Up or Step-Down Voltage Conversion
  Converts 120V to 240V or vice versa as needed for system flexibility.
• Split-Phase Output Balancing
  Perfect for 120/240V systems with unequal 120V loads—absorbs load imbalances to maintain full capacity usage.
• Alternative to Stacked Inverters
  Offers more flexibility and higher unbalanced load capability compared to stacked 120V inverter setups.

Technical Benefits:

• Maximizes Load Capacity
  Ensures full use of a 30A 120/240V supply (up to 7.2kVA) even under unbalanced conditions by rerouting neutral current through the transformer.
• Integrated Ground Relay
  Automatically grounds the inverter's neutral in inverter mode to comply with GFCI requirements. Controlled via Victron Multi or Quattro inverters.
• Temperature Protection
  Automatically disconnects during overheating. Manual reset ensures safety.

Why Choose an Autotransformer Over Stacked Inverters?

• A single 240V 5kVA inverter paired with a 32A autotransformer supports more unbalanced load than two stacked 120V inverters.
• Enables up to 38.5A on one leg if the other leg remains lightly loaded.
• Ideal for systems with fluctuating or unbalanced 120V appliance use.

Specifications:

• Input/Output Voltage: 120/240V
• Current Rating: 32A
• Includes: Grounding relay for neutral bonding
• Protection: Over-temperature shutdown with manual reset
• Application: Off-grid, RV, marine, residential backup, generator systems

Ensure stable voltage, efficient power distribution, and full load utilization with the Victron Autotransformer. An essential upgrade for any split-phase or multi-voltage energy system.