Cut Sheet

11
Ratchet-Pro Series Floor Box Wire Fill Capacity Charts
Wire Fill Calculations for RPSFB & RPSFB-OG Floor Boxes
Minimum Box Height
(Measured inside from
top of cut box – Disregard
excess height)
3 1/2" 89mm 55 cu.in. 901 ml. Not recommended for pours less than 4" [102mm]
4" 102mm 60 cu.in. 983 ml. 56 cu.in. 918 ml. 45 cu.in. 738 ml.
4 1/2" 114mm 65 cu.in. 1065 ml. 61 cu.in. 1000 ml. 50 cu.in. 820 ml.
5" 127mm 70 cu.in. 1147 ml. 66 cu.in. 1082 ml. 55 cu.in. 901 ml.
5 1/2" 140mm 75 cu.in. 1229 ml. 71 cu.in. 1164 ml. 60 cu.in. 983 ml.
6" 152mm 80 cu.in. 1311 ml. 76 cu.in. 1246 ml. 65 cu.in. 1065 ml.
Volume – Cat. No. RPSFB
(Each Gang)
RP7CTC & RP4FFCTC
(Available Volume for
Conductor Calculations)
RPAV3CTC & RP4CTC
(Available Volume for
Conductor Calculations)
Wire Fill Calculations for RPNFB Floor Boxes
Minimum Box Height
(Measured inside from
top of cut box – Disregard
excess height)
3 1/2" 89mm 35 cu.in. 574 ml. Not recommended for pours less than 4" [102mm]
4" 102mm 40 cu.in. 656 ml. 36 cu.in. 590 ml. 25 cu.in. 410 ml.
4 1/2" 114mm 45 cu.in. 738 ml. 41 cu.in. 672 ml. 30 cu.in. 492 ml.
5" 127mm 50 cu.in. 820 ml. 46 cu.in. 754 ml. 35 cu.in. 574 ml.
5 1/2" 140mm 55 cu.in. 901 ml. 51 cu.in. 836 ml. 40 cu.in. 656 ml.
6" 152mm 60 cu.in. 983 ml. 56 cu.in. 918 ml. 45 cu.in. 738 ml.
Volume – Cat. No. RPNFB
(Each Gang)
RP7CTC & RP4FFCTC
(Available Volume for
Conductor Calculations)
RPAV3CTC & RP4CTC
(Available Volume for
Conductor Calculations)
For single service activations – RPAMD4CTC, RPAMD8CTC and RP9AM2CTC, combine both
gangs to determine available wire fill.