Electrical box extension

Cable Entry

• Knockouts for conduit
  (5)
• Knockouts
  (3)

Ceiling Fan Rated

• No
  (4)

Certified Listed

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

Color

• Red
  (1)
• Silver
  (6)
• Gray
  (2)

Construction

• Drawn
  (8)

Cubic Capacity

• 21
  (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)

Knockouts

• 1/2 in
  (3)
• 1/2 in;3/4 in
  (6)
• 3/4 in
  (2)

Material

• Steel
  (9)

Mounting

• No bracket
  (7)

Number of Gang(s)

• 2-Gang
  (2)

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

• 3.5 in
  (1)
• 4 IN
  (7)

Standard

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

Type

• Extension Ring
  (9)
• Box
  (2)

Wiring System

• Conduit
  (5)

Manufacturers