The potential electrical difference in this type of circuit breaker is 1000V between the two poles. It trips upon exceeding 1000v of electrical DC since it is designed to only accommodate a direct current of 1000v or below.

It not only differs from other circuit breakers in terms of voltage capacity but also reset, mounting as well as current rating which is influenced by the voltage capacity.
In this sense, they have a relatively higher current rating capacity as compared to other lower voltage DC circuit breakers such as 48v and 600v. However, this may also vary among different DC circuit breakers that can accommodate 1000v.
For instance, these differences can be attributed to various factors such as manufacturers, model specifications as well as application requirements.
1000v DC circuit breakers applications:
- Powerful systems of electrical transmission.
- Large-scale industrial application that requires high voltage DC.
- Power transmission systems