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
3000 Series Raceway Wire Fill Capacities