Schneider Electric Wiring Devices X-Series currently indicate on the body of the product and on documentation that they support copper wire only.
Copper-clad aluminum conductors (CCA) are considered similar to copper, brass, or zinc-plated steel in that similar metals can be terminated together without oxide inhibitors in dry locations.
Therefore, Schneider Electric supports CCA cable being used with the side and/or back terminals of our 15A and 20A wiring devices marked copper only, under the following ampacity guidelines:
a)12 AWG CCA to be used for 15A devices
b)10 AWG CCA to be used for 20A devices
| Family | Description |
|---|---|
| SQR141XXXX | Switch 15A |
| SQR142XXXX | Switch 20A |
| SQR4410XXX | Receptacle Decora 15A Residential |
| SQR4411XXX | Receptacle Decora 15A Commercial |
| SQR4420XXX | Receptacle Decora 20A Commercial |
| SQR4210XXX | Receptacle Standard 15A |
| SQR4220XXX | Receptacle Standard 20A |
| SQR57XXXXX | Receptacle Lighted |
| SQR51XXXXX | Receptacle - GFCI |
| SQR55XXXXX | Receptacle - USB |
| SQR226XXXX | Dimmer |
Our push-in terminals on 15A devices shall only be used with 14 AWG solid copper wire, neither CCA wire, nor stranded wire.
Please refer to the following bulletin from NEMA on a more detailed explanation on the topic, and for additional references on UL categories and NEC clauses to support the statements above: https://www.nema.org/docs/default-source/technical-document-library/copper-clad-aluminum-conductor-requirements-in-the-national-electrical-codee113fe89-240e-4699-bd0c-7d4a147181d0.pdf?sfvrsn=dde12188_3
Released for: Schneider Electric USA
