Installation Guide

UL File No. E5238
UNDERWRITERS LABORATORIES LISTED WIRE COMBINATIONS Page 1
Combinations listed on this page are CU/CU Wire only. (Do not use on aluminum wire.) For use on solid and/or stranded
wire combinations unless noted otherwise.
Revised 7-14-2016
IDEAL Wire-Nut® Wire Connectors
Model
300 Volt Maximum
600 Volt Maximum
71B®
Strip
solid
wires ¼”
(6,5mm);
Strip
stranded
wires
5/16”
(8mm)
1 #14
1 to 2 #16
1 #18 str.
2 to 3 #18
2 to 4 #20
2 #22 str.
3 to 4 #22
5 #22 sol
1 #14 w/1 #20 or #22
1 #16 w/1 #18
1 #16 w/1 to 2 #20
1 #16 w/1 to 3 #22
1 #16 w/1 #20 w/1 #18 or #20
1 #18 w/1 to 3 #20
1 #18 w/1 to 4 #22
1 to 2 #18 w/1 #20 w/1 #22
2 #18 w/1 #20
2 #18 w/1 to 2 #22
1 #20 w/1 to 4 #22
2 #20 w/1 to 3 #22
3 #20 w/1 to 2 #22
4 #20 w/1 #22
Model
300 Volt Maximum
600 Volt Maximum
72B®
Strip
wires
#16 and
smaller
½”
(13mm);
all
others
3/8”
(9,5mm)
1 #14 str.
1 #16 str.
2 to 3 #16
1 #18 str.
2 to 4 #18
2 to 5 #20
2 #22
1 #14 w/1 #16
1 #14 w/1 to 2 #18
1 #14 w/1 to 3 #20
1 #14 w/1 to 4 #22
1 #16 w/1 to 3 #18
1 #16 w/ 1 #18 w/ 1 #20
1 #16 w/1 to 4 #20 or #22
1 #16 w/1 #22 w/1 #18 or #20
2 #16 w/1 #18
2 #16 w/1 to 2 #20
2 #16 w/1 #20 w/1 #22
2 #16 w/1 to 3 #22
1 #18 w/1 to 4 #20 or #22
1 to 2 #18 w/1 #20 w/1 #22
2 #18 w/1 to 3 #20 or #22
3 #18 w/1 to 2 #20 or #22
4 #18 w/1 #20 or #22
3 #20 w/1 to 2 #22
4 #20 w/1 #22
Model
300 Volt Maximum
600 Volt Maximum
73B®
Strip
wires
#16 and
smaller
strip
3/8”
(9,5mm);
all
others
5/16”
(8mm)
3 to 4 #16
5 #18
3 to 5 #20
5 #22
1 #14 w/2 #16
1 #14 w/1 #16 w/1 #18
1 #14 w/3 #18
1 #14 w/4 #20
2 #14 w/1 #18
2 #14 w/1 to 3 #20 or #22
1 #16 w/4 #18
2 #16 w/2 to 3 #18
2 #16 w/3 #20
3 #16 w/1 #18
3 #16 w/1 to 2 #20 or #22
4 #16 w/1 #20 or #22
1 #18 w/1 #20
1 #18 str. w/5 #22 str.
2 #18 w/3 #22
3 #18 w/2 #20 or #22
4 #18 w/1 #20 or #22
1 #20 w/4 #22
2 #20 w/2 to 3 #22
3 #20 w/1 to 2 #22
4 #20 w/1 #22
1 to 2 #14
1 #16 str.
2 #16
1 #18 str.
2 to 4 #18
1 #14 w/1 to 2 #18
1 #14 w/1 to 3 #20
1 #14 w/1 to 3 #22
1 #14 w/1 #16 w/1 #18
1 #14 w/1 #16
1 #16 w/1 to 2 #18
1 #16 w/1 to 3 #20 or #22
2 #16 w/1 to 2 #20
2 #16 w/1 to 3 #22
2 #16 w/1 #18
1 to 2 #16 w/1 #20 w/1 #22
1 #16 w/1 #18 w/1 #22
1 #18 w/2 to 4 #20
1 #18 w/ 3 to 4 #22
1 to 2 #18 w/1 #20 w/1 #22
2 #18 w/1 to 2 #20 or #22
3 #18 w/1 #20 or #22

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