Single Conductor

Cerrowire® single conductor types (excluding TFFN) are pulled through conduit for use in branch circuits, feeders, or service entrance conductors as specified in the NEC. The voltage rating for all Cerrowire® single conductor types is 600V.
THHNType THHN or THWN-2 may be used in wet or dry locations at conductor temperatures not to exceed 90°C. If marked MTW it may be used as machine tool wiring at conductor temperatures not to exceed 60°C. AWM marking signifies appliance wiring material at conductor temperatures not to exceed 105°C. Sizes 1/0 and larger are suitable for use in cable trays.
USEType USE-2, RHH and RHW-2 can be used for underground service entrance, including direct burial. It may be used in wet or dry locations at conductor temperatures not to exceed 90°C.
XHHW-2Type XHHW-2 may be used in wet or dry locations where conductor temperatures do not exceed 90°C.
TFFNType TFFN can be used as fixture wire where conductor temperatures do not exceed 90°C. It may also be used as MTW at conductor temperatures not to exceed 60°C or as AWM at 105°C.

Multiple Conductor

Cerrowire® multiple conductor cables are recommended for use as specified in the NEC. The voltage rating for all Cerrowire® single conductor types is 600V.
NM-BType NM-B is primarily used in residential wiring as branch circuits for outlets, switches, and other loads. NM-B may be used for both exposed and concealed work in dry locations. Ampacity is limited to 60°C for the over all cable.
UF-BType UF-B may be used underground, including direct burial, for supplying power to outside lamp posts, well pumps, workshops, etc. May be used for interior branch circuit wiring in dry, wet, or corrosive locations at temperatures not to exceed to 60°C for conductors.
SEUService Entrance Cable,Type SEU, is typically used in residential buildings to transfer power from the service drop to the panel box. Each phase conductor is type THHN or THWN-2, and it is suitable for use where the over all cable does not exceed 75°C.
SERService Entrance Cable, Type SER, is normally used in multi-family residential housing to take power from meter base to panel box in an individual apartment. Type SER is also commonly used for interior branch circuits for large appliances. Each phase conductor is type THHN or THWN-2, and is suitable for use where the overall cable does not exceed 75°C.
Mobile Home FeederMobile Home Feeder is used to connect a mobile home to an electrical supply where permanent wiring is required as specified in the NEC. Each conductor is Type USE-2, RHH and RHW-2 which is suitable for direct burial.
For wire size and amp ratings information, check out our easy-to-use Ampacity Charts and Ampacity Calculator.

WHERE TO BUY

Cerrowire markets through a number of quality retailers and manufacturer’s representatives.