Electrical box extension

Cable Entry

• Single rectangular entry point
  (2)
• Single round entry point
  (1)
• 9 Knockouts
  (1)
• Outlets
  (3)
• Threaded Hubs
  (2)
• Hubs
  (1)
• Knockouts for conduit
  (5)
• Knockouts
  (3)

Ceiling Fan Rated

• No
  (4)

Certified Listed

• UL Listed
  (8)
• cULus Listed
  (3)

Color

• White
  (16)
• Red
  (3)
• Silver
  (92)
• Gray
  (3)

Construction

• White
  (2)
• Drawn
  (16)
• Welded
  (8)

Cubic Capacity

• 42 CU-IN
  (2)
• 42
  (1)
• 21
  (5)
• 13
  (1)
• 15.5 CU-IN
  (2)
• 15.5
  (1)
• 10.3
  (1)
• 10.5 CU-IN
  (1)
• 13.5
  (1)
• 4.5
  (1)
• 21 CU-IN
  (1)
• 15.8 cu in
  (5)
• 21 cu in
  (14)
• 11.8 cu in
  (2)
• 7.3 cu in
  (1)
• 2.8 cu in
  (1)
• 30.3 cu in
  (4)
• 41 cu in
  (1)
• 46.5 cu in
  (1)
• 51.5 cu in
  (1)
• 1 cu in
  (1)
• 5 cu in
  (3)
• 21.5 cu in
  (2)
• 15.5 cu in
  (1)
• 29.5 cu in
  (2)
• 3.5 cu in
  (5)
• 13 cu in
  (3)
• 18.3 cu in
  (2)
• 42 cu in
  (4)
• 9.5 cu in
  (1)
• 7.8 cu in
  (1)
• 0 cu in
  (1)
• 14.7 cu in
  (1)
• 18 cu in
  (1)
• 7.2 cu in
  (1)
• 10.8 cu in
  (1)
• 9.1 cu in
  (1)
• 26 cu in
  (1)
• 3 cu in
  (1)
• 6.3 cu in
  (1)
• 17 cu in
  (1)
• 20 cu in
  (1)
• 12.8 cu in
  (1)
• 4.3 cu in
  (1)
• 5.3 cu in
  (1)
• 14 cu in
  (1)
• 1.5 cu in
  (1)
• 8.5 cu in
  (1)
• 6.8 cu in
  (1)
• 10.5 cu in
  (1)
• 11.8 cu.in
  (1)
• 15.5 cu.in
  (3)
• 22.5 cu.in
  (4)
• 22.5
  (1)
• 30
  (1)

Description - Long

• 3-1/2 in. Octagon Extension Ring, Drawn, 1-1/2 in. Deep, Four 1/2 in. KO's
  (1)
• 4 in. Octagon Extension Ring, Drawn, 1-1/2 in. Deep, Four 1/2 in. KO's
  (1)
• 4 in. Octagon Extension Ring, Drawn, 1-1/2 in. Deep, Two 1/2 & Two 3/4 in. KO's
  (1)
• 4 in. Square Electrical Box Extender, 1-1/2 in. Deep with Multiple Kos
  (1)
• 4 in. Square Extension Ring, Drawn, 1-1/2 in. Deep, Eight 3/4 in. KO's
  (1)
• 4 in. Square Extension Ring, Drawn, 1-1/2 in. Deep with Twelve 1/2 in. KO's
  (1)
• 4 in. Square Extension Ring, Drawn, 1-1/2 in. Deep, Eight 1/2 in. and Four 3/4 in. KO's
  (1)
• 4 in. Octagon Extension Ring, Drawn, 1-1/2 in. Deep, Four 3/4 in. KO's
  (1)
• 4 in. Square Extension Ring, Drawn, 1-1/2 in. Deep, Eight 1/2 in. and Four, 3/4 in. KO's for Switch Boxes, Red
  (1)
• 4 in. Square Plenum Box Extension, 1-1/2 in. Deep, Eight 1/2 in. and Four 3/4 in. Knockouts
  (1)
• 4-11/16 in. Plenum Box Extension, 1-1/2 in. Deep, Eight 1/2 in. and Four 3/4 in. Knockouts
  (1)

Description - Marketing Copy

• Enhance your electrical installations with this 4 in. square electrical box extender, designed to provide additional cubic capacity for complex setups. Measuring 1-1/2 inches in depth, it includes eight 1/2 inch and four 3/4 inch knockouts, making it versatile for various switch box configurations. Perfectly suited as an outlet box for surface-mounted conduit, this extender is crafted from robust 1/16 inch pre-galvanized steel, ensuring durability and reliability in any electrical setup. Ideal for both residential and commercial applications, this product simplifies installation while accommodating more wiring and components.
  (1)
• Extension rings provide additional cubic capicity. May be used an an outlet box for surface conduit. Constructed from 1/16 in. pre-galvanized steel.
  (2)
• Extension rings provide additional cubic capicity. May be used an an outlet box fro surface conduit. Constructed from 1/16 in. pre-galvanized steel.
  (1)
• Upgrade your electrical setup with this 4 in. square electrical box extension, designed to enhance space and organization within your wiring systems. This unit is 1-1/2 inches deep and comes equipped with eight 1/2 inch and four 3/4 inch knockouts, providing ample options for cable management and device connectivity. Ideal for accommodating additional wiring or components, this extension is a versatile solution for both new installations and upgrades, ensuring a neat and efficient electrical environment.
  (1)

Description - Short

• 3-1/2 in. Octagon Extension Ring, Drawn, 1-1/2 in. Deep, Four 1/2 in. KO's
  (1)
• 4 in. Octagon Extension Ring, Drawn, 1-1/2 in. Deep, Four 1/2 in. KO's
  (1)
• 4 in. Octagon Extension Ring, Drawn, 1-1/2 in. Deep, Two 1/2 & Two 3/4 in. KO's
  (1)
• 4 in. Square Electrical Box Extender, Drawn, 1-1/2 in. Deep with Eight 1/2 in. and Four 3/4 in. KO's for Enhanced Switch Box Capacity.
  (1)
• 4 in. Square Extension Ring, Drawn, 1-1/2 in. Deep, Eight 3/4 in. KO's
  (1)
• 4 in. Square Extension Ring, Drawn, 1-1/2 in. Deep with Twelve 1/2 in. KO's
  (1)
• 4 in. Square Extension Ring, Drawn, 1-1/2 in. Deep, Eight 1/2 in. and Four 3/4 in. KO's
  (1)
• 4 in. Octagon Extension Ring, Drawn, 1-1/2 in. Deep, Four 3/4 in. KO's
  (1)
• 4 in. Square Extension Ring, Drawn, 1-1/2 in. Deep, Eight 1/2 in. and Four, 3/4 in. KO's for Switch Boxes, Red
  (1)
• 4 in. Square Electrical Box Extension, 1-1/2 in. Deep, Featuring Eight 1/2 in. and Four 3/4 in. Knockouts.
  (1)
• 4-11/16 in. Plenum Box Extension, 1-1/2 in. Deep, Eight 1/2 in. and Four 3/4 in. Knockouts
  (1)

Description - Slang

• Square Extension Ring
  (1)
• Square Plenum Box
  (1)
• Plenum Box Extension
  (1)

Drawn or Welded

• Drawn
  (11)

EU RoHS Indicator

• Contact Manufacturer
  (6)
• Yes
  (2)

FEATURES - Bullets

• Drawn steel construction;3-1/2 in. x 1-1/2 in. deep;Supplied with four 1/2 in. knockouts;Combination Phillips/slotted screw heads;11.8 cu. in. capacity
  (1)
• Drawn steel construction;4 in. x 1-1/2 in. deep;Supplied with four 1/2 in. knockouts;Combination Phillips/slotted screw heads;15.5 cu. in. capacity
  (1)
• Drawn steel construction;4 in. x 1-1/2 in. deep;Supplied with two 1/2 in. and two 3/4 in. knockouts;Combination Phillips/slotted screw heads;15.5 cu. in. capacity
  (1)
• Increased Capacity:1-1/2 in. depth provides additional cubic space for more complex wiring;Versatile Knockouts:Features eight 1/2 in. and four 3/4 in. knockouts for flexible installations;Durable Construction:Made from 1/16 in. pre-galvanized steel for long-lasting reliability;Ideal for Surface Conduit:Perfect as an outlet box for surface-mounted electrical conduits;Suitable for Various Settings:Designed for both residential and commercial electrical applications.
  (1)
• Combination screw heads allow quick installation;Drawn construction;Eight 3/4 in. knockouts;UL Listed;22.5 cu. in. capacity
  (1)
• Combination screw heads allow quick installation;Drawn construction;Twelve 1/2 in. knockouts;UL Listed;22.5 cu. in. capacity
  (1)
• Combination screw heads allow quick installation;Drawn construction;Eight 1/2 in. knockouts and four 3/4 in. knockouts;UL Listed;22.5 cu. in. capacity
  (1)
• Drawn steel construction;4 in. x 1-1/2 in. deep;Supplied with four 3/4 in. knockouts;Combination Phillips/slotted screw heads;15.5 cu. in. capacity
  (1)
• Drawn construction;Positioned to accommodate 1-2 switch boxes;Combination screw heads allow quick installation;Eight 1/2 in. knockouts and four 3/4 in. knockouts;22.5 cu. in. capacity;Painted red for dedicated life safety alarm systems
  (1)
• Multiple Sizes Available:Choose from 4 in. square, 4-11/16 in. square, and 4 in. octagon models;Gasketed Covers:Sealed with PVC foam material for enhanced protection;Airtight Knockouts:Ensures integrity and maintains a controlled environment;Plenum Seal Preservation:Designed without ground screw holes to maintain plenum integrity;Durable Material:Constructed from high-quality drawn steel;Safety Assurance:UL Listed to meet standard safety requirements.
  (1)
• Available in 4 in. square, 4-11/16 in. square and 4 in. octagon models;Covers gasketed with PVC foam material;Airtight knockouts;To maintain plenum seal, boxes do not have ground screw holes;Drawn steel construction;UL Listed
  (1)

Fire Resistance

• Yes
  (5)

Fixture Lbs.

• 50 lb.
  (3)

FV_Ceiling Fan Rated

• No
  (4)

FV_Certified Listed

• UL Listed
  (3)

FV_Drawn or Welded

• Drawn
  (11)

FV_Fixture Lbs.

• 50 lb.
  (3)

FV_Wiring System

• Conduit
  (9)

Insulation

• Plastic
  (2)
• Yes
  (3)
• None
  (1)

Knockouts

• 9
  (1)
• 4
  (10)
• Yes
  (6)
• 12
  (18)
• 8
  (6)
• 10
  (1)
• 1/2 in
  (3)
• 1/2 in;3/4 in
  (6)
• 3/4 in
  (2)

Material

• Plastic
  (12)
• Steel
  (104)
• PVC
  (3)
• Aluminum Die Cast
  (5)
• Aluminum Alloy
  (4)
• Die Cast Aluminum
  (1)
• Non-Metallic
  (2)
• Aluminum
  (1)

Mounting

• Recessed Wall
  (6)
• Recessed Ceiling
  (1)
• Screw or nail Tab
  (3)
• Nail or screw hole
  (1)
• No bracket
  (7)

Number of Gang(s)

• 2-Gang
  (2)

Number Of Outlet

• 1
  (65)
• 2
  (12)
• 3
  (1)
• 4
  (3)
• L(4.625) x W(5.937) x H(1.813)
  (1)
• L(4.625) x W(7.749) x H(1.813)
  (1)
• 10 Each
  (1)
• 12 Each
  (1)
• 6
  (1)
• 7
  (1)
• 8
  (1)
• 9
  (1)
• 10
  (1)

Packaging Type

• No Packaging
  (9)

Pallet Quantity

• 3150
  (1)
• 2800
  (3)
• 2400
  (2)
• 2750
  (3)
• 2000
  (1)
• 1650
  (1)

Power Distribution Features

• Fire Rated
  (2)

Product Name

• 3-1/2 in. Octagon Extension Ring, Drawn, 1-1/2 in. Deep, Four 1/2 in. KO's
  (1)
• 4 in. Octagon Extension Ring, Drawn, 1-1/2 in. Deep, Two 1/2 & Two 3/4 in. KO's
  (1)
• 4 in. Square Extension Ring, Drawn, 1-1/2 in. Deep, Eight 3/4 in. KO's
  (1)
• 4 in. Square Extension Ring, Drawn, 1-1/2 in. Deep with Twelve 1/2 in. KO's
  (1)
• 4 in. Square Extension Ring, Drawn, 1-1/2 in. Deep, Eight 1/2 in. and Four 3/4 in. KO's
  (1)
• 4 in. Octagon Extension Ring, Drawn, 1-1/2 in. Deep, Four 3/4 in. KO's
  (1)
• 4 in. Square Extension Ring, Drawn, 1-1/2 in. Deep, Eight 1/2 in. and Four, 3/4 in. KO's for Switch Boxes, Red
  (1)
• 4 in. Square Electrical Box Extension, 1-1/2 in. Deep with Multiple Knockouts
  (1)
• 4-11/16 in. Plenum Box Extension, 1-1/2 in. Deep, Eight 1/2 in. and Four 3/4 in. Knockouts
  (1)

Product Type

• Steel Boxes and Covers
  (4)

Raised Ground

• No
  (1)

Size

• L(4.188) x W(2.313) x H(1.813) IN
  (2)
• L(4.850) x W(4.350) x H(1.500) IN
  (1)
• L(4.188) x W(4.125) x H(1.813) IN
  (1)
• L(4.188) x W(5.937) x H(1.813) IN
  (1)
• L(4.188) x W(7.749) x H(1.813) IN
  (1)
• L(5.117) x W(3.336) x H(0.625) IN
  (1)
• L(5.147) x W(3.281) x H(2.077) IN
  (1)
• L(4.628) x W(2.325) x H(1.813) IN
  (1)
• L(4.625) x W(4.125) x H(1.813) IN
  (1)
• L(4.625) x W(5.937) x H(1.813) IN
  (1)
• L(4.625) x W(7.749) x H(1.813) IN
  (1)
• L(5.000) x W(3.250) x H(1.813) IN
  (1)
• 2-7/8 in
  (1)
• 4-1/2 in
  (1)
• 4.23 in
  (1)
• 2-1/8 in
  (1)
• 4.6875 X 4.6875 X 2.125 IN
  (1)
• 4 X 4 X 1.5 IN
  (1)
• 4 Inches Diameter x 1-1/2 Inches Depth
  (4)
• 4 Inches Length x 4 Inches Width x 1-1/2 Inches Depth
  (15)
• 3-1/2 Inches Diameter x 1-1/2 Inches Depth
  (2)
• 4-11/16 Inches Length x 4-11/16 Inches Width
  (3)
• 4-9/16 Inches Length x 15-15/16 Inches Width
  (1)
• 4-9/16 Inches Length x 17-3/4 Inches Width
  (1)
• 4-9/16 Inches Length x 19-9/16 Inches Width
  (1)
• 4-9/16 Inches Length x 21-3/8 Inches Width
  (1)
• 4 Inches Length x 4 Inches Width
  (6)
• 4 Inches Diameter x 2-1/8 Inches depth
  (2)
• 4-11/16 Inches Length x 4-11/16 Inches Width x 1-1/2 Inches Depth
  (2)
• 2 Inches Height x 3 Inches Width x 7/8 Inches Depth
  (3)
• 4 Inches Length x 4 Inches Width x 2-1/8 Inches Depth
  (3)
• 4 Inches Length x 2-1/8 Inches Width x 1-7/8 Inches Depth
  (3)
• 4-11/16 Inches Length x 4-11/16 Inches Width x 2-1/8 Inches Depth
  (4)
• 4.56 Inches x 2.86 Inches x 1-3/8 Inches
  (1)
• 5 Inches Length x 5 Inches Width
  (26)
• 3.5 in
  (1)
• 4 IN
  (7)

Standard

• CULUS
  (13)
• UL
  (16)
• UL E2527
  (3)
• UL E28688
  (7)
• UL E2969
  (46)
• CSA 703005
  (2)
• UL Listed
  (8)
• cULus Listed
  (3)

Type

• Box Extender
  (4)
• Ceiling Box Extender
  (1)
• Box Extender With Screw
  (1)
• Heavy Duty Box Extender
  (1)
• Single Gang
  (1)
• Duplex
  (1)
• Round
  (1)
• Red Fire Alarm
  (1)
• Square Box Extension Ring
  (8)
• Handy Box Extension Ring
  (3)
• Octagon Box Extension Ring
  (4)
• Switch Box Extension
  (1)
• Extension Rings
  (64)
• Device Boxes, Covers & Accessories
  (8)
• Square Rings
  (5)
• Multi-Gang Rings
  (4)
• Adjustable Covers
  (4)
• Extension Rings / Vapour Barriers
  (2)
• Extension Ring
  (9)
• Box
  (2)

Wiring System

• Conduit
  (5)

Manufacturers