The APPLETON GRLB50-A 1/2 GR Unilet is designed for use with threaded metal conduit. Suitable for joining RMC and IMC conduit in hazardous locations, these conduit outlet boxes provide access for maintenance and allow connection of different lengths of conduit. They also facilitate changing the direction of conduit.
Suitable for joining RMC and IMC conduit in hazardous locations
Internal ground screw standard
Corrosion, impact & shock resistance
Product Highlights
Ideal for use in indoor and outdoor classified locations. Provides access for maintenance.
Product Information
Standard Information
Brand: APPLETON
Manufacturer Part Number: GRLB50-A
Country of Origin: Mexico
Technical Specifications
Application
For Use With Threaded Metal Conduit
Manufacturer
Appleton
Item model number
GRLB50A
Diameter
1/2 in
Material
Aluminum
Cubic Inches
18 cu in
Brand
APPLETON ELECTRIC
Compatible Conduit Trade Size
1/2 in
Trade Size
1/2 in
Thread Gender
Female
Number of Hubs
2
Hub Style
Threaded
Body Capacity
18 cu in
Finish
Powder Coated
Cover Included
Yes
Body Style
LB
Connection Type
Threaded
Includes
Grounding Screw;
O-ring
Back Type
Round
Body Type
Conduit Outlet
Body
Overall Width
3-3/4 in
Overall Height
2-7/8 in
Overall Length
7 in
Standards
CSA C22.2 No. 25; CSA C22.2 No. 30; UL 886; UL Listed for Class I, Division 1 and 2, Groups B, C, D, Class II, Division 1 and 2, Groups E, F, G, and Class
III
Series
GR
Hazardous Location
Yes
For Use With
Threaded
IMC
Hazardous Location Rating
Class 1, Zone 1 and 2, IIA, IIB; Class I, Division 1 and 2, Groups B, C, D; Class II, Division 1 and 2, Groups E, F,
G
Indoor/Outdoor Usage
Indoor/Outdoor
Item
Conduit Outlet
Body
Shape
LB
Thread Size
1/2 in
Thread Type
NPT
Manufacturer Part Number
GRLB50-A
UNSPSC
39121303
Product Series
GR
Family Series
Appleton Electrical Boxes, GR Series
Description
UNILETS Outlet Box, Number Of Outlet: 2, Material: Copperfree 4/10 Of 1 PCT Maximum Aluminum, Size: 1/2 IN, Cable Entry: 2 1/2 IN GRLB Hub, Cubic Capacity: 18 CU-IN, Knockouts: No, Cover Opening: 3.38 IN, Form Number: 1, Height: 3-3/