The Victron Energy CTR120000550 Current Transformer is an external AC current-sensing accessory designed for compatible MultiPlus-II and MultiGrid-II inverter/charger systems. It provides a 100A:50mA current-transformer interface for supported Victron functions including PowerControl, PowerAssist, and self-consumption optimization with external current sensing. 

This model belongs to Victron's CTR12 series and uses wire-end termination for connection to compatible equipment. Victron distinguishes CTR12 models from the CTR11 series, which uses a jack connector, so the current-sense interface of the specific inverter/charger should be verified before installation. 

Key Technology

• External AC Current Sensing
  Provides an external AC current measurement for compatible Victron inverter/charger systems, allowing current at the selected measurement point to be incorporated into supported system functions.

• 100A:50mA Current Transformer
  Uses a 100A primary-to-50mA secondary current-transformer ratio designed for the applicable MultiPlus-II current-sensing interface.

• Wire-End Termination
  The CTR12-series design terminates with wire ends for connection to the designated current-transformer terminals on compatible equipment.

• PowerControl Support
  Designed for supported MultiPlus-II and MultiGrid-II configurations using external current sensing with Victron PowerControl.

• PowerAssist Support
  Provides external current measurement for compatible PowerAssist configurations, allowing the inverter/charger system to respond according to configured AC input limits and load conditions.

• Self-Consumption Optimization
  Supports compatible installations where external current sensing is used to optimize system self-consumption. 

Best Uses

• Compatible MultiPlus-II Systems
  Designed for MultiPlus-II installations equipped with the appropriate wire-end external current-transformer connection.

• MultiGrid-II Systems
  Suitable for compatible MultiGrid-II configurations requiring external AC current measurement.

• PowerControl Applications
  Useful where current measured at an external location must be incorporated into the system's configured AC input-power management.

• PowerAssist Applications
  Provides current feedback for supported systems using PowerAssist to coordinate available AC input power with inverter assistance.

• Self-Consumption Systems
  Suitable for compatible energy-storage systems that use external current measurement as part of their self-consumption strategy.

Product Specifications

Wire-End External Current Sensing for Compatible Victron Systems

The Victron Energy CTR120000550 Current Transformer provides a dedicated external AC current-sensing solution for compatible MultiPlus-II and MultiGrid-II installations. Its 100A:50mA transformer ratio, split-core design, and CTR12 wire-end termination make it suitable for supported systems using PowerControl, PowerAssist, and self-consumption optimization.

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