CHINT · DC molded case circuit breaker
Product overview
CHINT NM8NDC is the DC branch of the NM8N circuit-breaker family. Use the NM8NDC tables and wiring diagrams in the manufacturer catalogue; AC NM8N and high-voltage AC NM8N-HV specifications must not be substituted for a DC model.
Technical selection summary
| Series | NM8NDC |
|---|---|
| Product type | DC molded case circuit breaker |
| Application circuit | DC power distribution and protection |
| Configuration selection | Frame, rated current, poles and DC operating voltage |
| Breaking-capacity selection | Check the rating for the selected DC voltage and pole connection |
| Documentation | CHINT NM8N family catalogue, including the NM8NDC section |
| DC1000 V connection reference | The manufacturer DC table specifies DC1000 V with 4 poles in series. Use the exact approved manufacturer wiring diagram for the model and earthing arrangement |
| DC1000 V breaking-capacity codes | With 4 poles in series, the 125/250/400/630/800 frame columns list B/C/S/Q/H at 25/36/50/70/100 kA respectively. Icu and Ics are shown separately with these values in this catalogue; match the full frame and breaking-capacity code |
| 1600 A frame distinction | At DC1000 V with 4 poles in series, the NM8N DC 1600 frame table lists B at 25 kA and C at 36 kA. The higher interrupting-code columns from smaller frames do not apply to every frame |
The table summarizes the series. Not every rating and option is available in every combination. Confirm the complete manufacturer code and its applicable documents before ordering.
Typical applications
- DC distribution assemblies
- Renewable-energy DC equipment
- Industrial DC protection projects
Specify your enquiry
For a focused quotation, include:
- Full NM8NDC model
- DC voltage and required fault-breaking capacity
- Rated current, pole connection and wiring arrangement
Download CHINT NM8NDC catalogue (PDF)
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Product reference images and drawings
