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What’s the differences between Polarity DC circuit breaker and Non Polarity DC circuit breaker?

What is Polarity and Non-Polarity for the DC Circuit Breaker?

Polarity means you can only connect the circuit breaker as the manufacturer indicate, the connection direction is fixed. For the application, the current direction can’t be changed.

For example it can’t be used for solar batteries system becasue the batteries have charge and discharge models, the current direction will change.

Non-Polarity means you can connect the breaker at any direction. For example top input, bottom output or top output, bottom input. It can be used for solar panel system, batteries system or any other DC system.

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