The Crouse-Hinds AHG, UNJ, UNJC, and ARB Series Flexible Luminaire Hangers are designed for hazardous locations (Class I, Division 2, Groups A, B, C, D), providing secure pendant mounting for various luminaire types.

Description

Applications

  • Designed for pendant-mounting incandescent, HID, and fluorescent luminaires.
  • Used in hazardous environments where vibration or movement may occur.
  • Allows luminaires to swing up to 20° (AHG) or 8° (UNJ, UNJC) from the perpendicular.

Key Features

AHG Series

  • Universal joint support permits up to 20° swing in any direction.
  • Gasketed neoprene diaphragm prevents moisture and dirt ingress.
  • Threaded male nipple for direct conduit connection.

UNJ & UNJC Series

  • Ball and cushion type suspension options:
    • Ball type supports up to 125 lbs.
    • Cushion type supports up to 48 lbs.
  • Flexible joint allows up to 8° swing.
  • Available with 3/4” luminaire stems.

ARB Series

  • For mounting to GRF, VXF, or 4” octagonal outlet boxes.
  • Ball type allows 11° swing, cushion type allows 8° swing.
  • Surface or flush mounting options available.

Standard Materials & Finishes

Component Material Finish
AHG Body & Nipple Malleable Iron Electrogalvanized & Aluminum Acrylic Paint
AHG Clamp Copper-Free Aluminum Natural
UNJ/UNJC Housing Copper-Free Aluminum Natural
ARB Mounting Plate (GRF) Feraloy® Iron Alloy Electrogalvanized & Aluminum Acrylic Paint
ARB Hanger Body Feraloy® Iron Alloy Electrogalvanized & Aluminum Acrylic Paint
ARB Sheet Steel Components Sheet Steel Electrogalvanized with Chromate Finish

Certifications & Compliance

  • Class I, Division 2 (Groups A, B, C, D).
  • Class II, Division 2 (Groups F, G) (AHG Series only).
  • Class III (AHG Series only).
  • Wet Locations; NEMA 3, 3R.

Ordering Information

AHG Series

Luminaire Stem Size Male Nipple Size Luminaire Weight (lbs.) Catalog #
3/4” 3/4” 4-16 AHG22104 SA
3/4” 3/4” 16-30 AHG22111 SA

UNJ Series (Ball Type)

Luminaire Stem Size Male Nipple Size Catalog #
1/2” 1/2” UNJ1
3/4” 3/4” UNJ2

UNJC Series (Cushion Type)

Luminaire Stem Size Male Nipple Size Luminaire Weight (lbs.) Catalog #
3/4” 3/4” 6-12 UNJC28
3/4” 3/4” 12-24 UNJC216
1/2” 1/2” 24-48 UNJC132
3/4” 3/4” 24-48 UNJC232

ARB Series – Ball Type (Fits GRF & VXF Outlet Boxes)

Description Luminaire Stem Size Max. Luminaire Weight (lbs.) Catalog #
Surface Mount 1/2” 125 ARB62
Flush Mount 1/2” 125 ARB67
Surface Mount 3/4” 125 ARB662

ARB Series – Cushion Type (Fits GRF & VXF Outlet Boxes)

Luminaire Stem Size Luminaire Weight (lbs.) Catalog #
1/2” 4-8 ARB82
1/2” 8-16 ARB102
1/2” 16-30 ARB122

ARB Series – Cushion Surface (Vaportight with Neoprene Diaphragm)

Luminaire Stem Size Luminaire Weight (lbs.) Catalog #
1/2” 4-8 ARB821
1/2” 8-16 ARB1021
1/2” 16-30 ARB1221

ARB Series – Ball Type (Fits GRF, VXF, & 4” Outlet Boxes)

Luminaire Stem Size Max. Luminaire Weight (lbs.) Catalog #
1/2” 60 ARB6
3/4” 60 ARB2

ARB Series – Cushion Type (Fits GRF, VXF, & 4” Outlet Boxes)

Luminaire Stem Size Luminaire Weight (lbs.) Catalog #
1/2” 4-8 ARB8
1/2” 8-16 ARB10
1/2” 16-30 ARB12

Conclusion

The Crouse-Hinds AHG, UNJ, UNJC, and ARB Flexible Luminaire Hangers offer secure, NEC-compliant solutions for hazardous locations. Their adjustable swing angles, moisture-resistant gaskets, and rugged construction make them ideal for industrial lighting applications.

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