Cut Sheet

CABLE/WIRE SIZE
O.D.
40% FILL
Inches [mm]
UNSHIELDED 4-PAIR, 24 AWG Cat 3 0.190 [4.8] 52
TWISTED PAIR 4-PAIR, 24 AWG Cat 5e 0.210 [5.3] 42
4-PAIR, 24 AWG Cat 6 0.250 [6.3] 30
4-PAIR, 24 AWG Cat 6a* 0.354 [8.9] 15
25-PAIR, 24 AWG 0.410 [10.4] 11
COAXIAL RG6/U 0.270 [6.9] 25
FIBER ZipCord 0.118 x 0.236 [3 x 6] 53
Round 4 Strand Fiber 0.187 [4.5] 53
Round 6 Strand Fiber 0.256 [6.5] 28
* Category 6 augmented (6a) cable for 10 gigabit ethernet – max allowed cable diameter
per addenda No. 11 ANSI TIA/EIA 568-B.2.
NUMBER OF CONDUCTORS (40% Fill)
WIRE SIZE O.D. WITHOUT WITH DUPLEX/ WITH SURGE/ LARGE SINGLE
THHN/THWN inches [mm] DEVICES RECT. DEVICES GFCI DEVICES RECEPTACLES
1.59 in.
2
[1025mm] 2.30 in.
2
[1485mm] 3.00 in.
2
[1935mm]
14 AWG 0.111 [2.8] 152 70 40 28
12 AWG 0.130 [3.3] 111 51 29 21
10 AWG 0.164 [4.2] 70 32 18 13
8 AWG 0.216 [5.5] 40 18 10 7
6 AWG 0.254 [6.5] 29 13 7 5
3000 Series Raceway Wire Fill Capacities For Power
3000 Series Raceway Cable Fill Capacities for Communications
7