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Branch circuit and
Breaker Rating
75°C Copper
Types RHW, THHW, THW,
THWN, XHHW, USE, ZW
90°C Copper
Types TBS, SA, SIS, FEP, FEPB, MI,
RHH, RHW-2, THHN, THHW, THW-
2, THWN-2, USE-2, XHH, XHHW,
XHHW-2, ZW-2
40A 8 AWG 8 AWG
50A 8 AWG 8 AWG
60A 6 AWG 6 AWG
80A 4 AWG 4 AWG
100A 2 AWG 2 AWG
Table 2 - Minimum Required Conductor Size
Note: The table above provides a REFERENCE for the MINIMUM conductor size for the circuit
from the panel. The required conductor size must also consider installation factors such as
temperature correction and length of cable.
Note: For connection to terminal block, a minimum wire size of 8AWG, and a maximum wire
size of 1/0 are supported. This must be considered by installer when selecting conductor size
as the table above contains sizes below 8AWG.
Note: Do NOT use GFCI breakers with this product. This product contains integrated Ground
Fault protection.
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