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Victron Energy Autotransformer 120/240VAC-100 Amp
Photo shows the 32 Amp model which is slightly smaller than the 100 Amp model

Victron Energy Autotransformer 120/240VAC-100 Amp

On sale$780.30
p/n:autotransformer100

This is a transformer for step-up, step-down and split phase output balancing purposes. The step up and step down part is easy:  Input can be 120 Volts and output 240 Volts or input can be 240 Volts and output 120 Volts.  Regardless of the input voltage the input current is limited by the built in breaker to 100 Amps. The split phase output balancing is a bit more complicated to understand:  When the input is 240 volts you can have two 120 volt load groups with a total output of the full 100 Amp rating regardless of whether the loads are balanced or not. The transformer automatically takes care of the load balancing.  See the links below for more details:

  • Autotransformer  100 A 
  • Input/output voltage  120 / 240V
    Input circuit breaker  100 A two pole 
  • Frequency  50/60Hz
  • 240V to L1,L2 current  32A 
  • Neutral current, 30 min  32A (3800VA)
  • Neutral current, continuous  28A @ 40ºC/100ºF
  • Transformer type  Toroidal
  • Enclosure  Aluminium
  • 100 Amp Input circuit breaker  included
  • Protection category  IP21
  • Safety  EN 60076
  • Weight   13.5 Kg 
  • Dimensions (h x w x d)   425 x 214 x 110  
  • Datasheet
  • Owners Manual


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