NEC Table 310.16 ampacity lookup
nec_ampacityRead-onlyIdempotent
Allowable ampacity of one insulated conductor from NEC Table 310.16 (not more than three current-carrying conductors in a raceway or cable, 30°C ambient), before any adjustment or correction factors and before the 240.4(D) small-conductor limits.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| size | Yes | Conductor size: AWG ("14" … "4/0") or kcmil ("250" … "500"). | |
| temp | Yes | Temperature column in °C: 60 (NM-B, UF), 75 (THWN, most terminations), 90 (THHN, for derating). | |
| material | Yes | "cu" = copper; "al" = aluminum. |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| ok | Yes | ||
| url | Yes | ||
| code | Yes | ||
| rows | Yes | ||
| table | No | ||
| inputs | Yes | ||
| summary | Yes |