Cut Sheet

NEC/CEC:
Class I, Division 1 and 2 Groups A, B, C, D
Class II, Division 1 and 2 Groups E, F, G
Class III
Size
(Inches)
Millimeters (Inches) Catalog Number
AB
Steel (1/2” to 1”)
and Malleable (1-1/4” to 6”)
Aluminum
(1/2” to 4”)
UNY Unions — For connecting conduit to enclosure
1/2" — 1"
1-1/4" — 4"
5" — 6"
Male/Female (Nipple Not Removable)
1/2 54.4 (2.147) 37.3 (1.47)
UNY50NR 

UNY50NR-A 

3/4-1/2 54.8 (2.16) 37.3 (1.47)
UNY75-50NR

UNY75-50NR-A

3/4 54.8 (2.16) 44.5 (1.75)
UNY75NR 

UNY75NR-A 

1 66.7 (2.62) 50.8 (2.00)
UNY100NR 

UNY100NR-A 

Male/Female (Removable Male Nipple)
1-1/4 79.4 (3.13) 71.4 (2.81)
UNY125NR 

UNY125NR-A 

1-1/2 82.6 (3.25) 77.8 (3.06)
UNY150NR 

UNY150NR-A 

2 92.1 (3.63) 94.5 (3.72)
UNY200NR 

UNY200NR-A 

2-1/2 122.2 (4.81) 123.8 (4.88)
UNY250R 

UNY250R-A 

3 122.2 (4.81) 136.5 (5.38)
UNY300R 

UNY300R-A 

3-1/2 125.4 (4.94) 149.2 (5.88)
UNY350R 

UNY350R-A 

4 130.2 (5.13) 163.5 (6.44)
UNY400R 

UNY400R-A 

5 142.9 (5.63) 212.7 (8.33)
UNY500R 
—
6 146.1 (5.75) 244.5 (9.63)
UNY600R 
—
UNF Female Unions — For connecting conduit to conduit
1/2" — 1"
1-1/4" — 4"
5" — 6"
1/2 37.3 (1.47) 37.3 (1.47)
UNF50NR 

UNF50NR-A 

3/4-1/2 
37.3 (1.47) 37.3 (1.47)
UNF75-50NR

UNF75-50NR-A

3/4 37.3 (1.47) 44.5 (1.75)
UNF75NR 

UNF75NR-A 

1 43.7 (1.72) 50.8 (2.00)
UNF100NR 

UNF100NR-A 

1-1/4 55.6 (2.19) 71.4 (2.81)
UNF125NR 

UNF125NR-A 

1-1/2 55.6 (2.19) 77.8 (3.06)
UNF150NR 

UNF150NR-A 

2 58.7 (2.31) 94.5 (3.72)
UNF200NR 

UNF200NR-A 

2-1/2 85.7 (3.38) 123.8 (4.88)
UNF250R 

UNF250R-A 

3 85.7 (3.38) 136.5 (5.38)
UNF300R 

UNF300R-A 

3-1/2 85.7 (3.38) 149.2 (5.88)
UNF350R 

UNF350R-A 

4 88.9 (3.50) 163.5 (6.44)
UNF400R 

UNF400R-A 

5 98.4 (3.88) 212.7 (8.38)
UNF500R 
—
6 101.6 (4.00) 244.5 (9.63)
UNF600R 
—
Dimensions
Size (Inches) Millimeters (Inches)
Catalog Number
MalleableMale Female A B C
UNL 90° Elbow Unions — For connecting conduit to enclosure
1/2 1/2 62.7 (2.47) 35.1 (1.38) 52.3 (2.06)
UNL50N

1/2
3/4 
62.7 (2.47) 41.4 (1.63) 52.3 (2.06)
UNL50-75N

3/4
1/2 
50.8 (2.00) 35.1 (1.38) 47.6 (1.88)
UNL75-50N

3/4 3/4 50.8 (2.00) 41.4 (1.63) 47.6 (1.88)
UNL75N

 Male end given first
 PVC coating available on select unions. Add suffix -PVC to catalog number.
 Indicates items in the shaded area which are UL Listed for Class I, Groups A, B, C, D; Class II, Groups E, F, G; and Class III.
 Indicated items in the shaded area which are UL Listed for Class I, Groups B, C, D; Class II, Groups E, F, G; and Class III.
Fittings
NEC/CEC CLASS/ZONE RATED HAZARDOUS LOCATION CONDUIT FITTINGS
Visit our website at www.appletonelec.com or contact us at [phone].
© May 2014
234
UNY, UNF, and UNL Unions
Explosionproof; Dust-Ignitionproof
UNILETS
®
for Use with Threaded Rigid Metal Conduit and IMC.