Plenum Boxes and Covers

4" Octagon Plenum Extension Ring, 1-1/2" Deep - Drawn W/Conduit KO's And Fixture Ears 3-1/2" O.C.

SKU: 55151-VT Model: 55151-VT
Plenum boxes are used in air-plenum wall or ceiling surfaces to install lighting fixtures, switches, receptacles or other outlet devices. Square boxes are used to bring power to a number of electrical devices where multiple conductor runs are split in two or more directions.

Features & Benefits

  • Drawn construction with airtight knockouts
  • Cover mounting screws included with plenum cover
  • 55C1-VT Plenum Sealing Ring must be ordered separatly
  • UL, RoHS Compliant


Stock # 55151-VT 55151-VT
Model # 55151-VT 55151-VT
UPC # 785592999832 785592999832
Product Height 1.5 3.81 inch cm
Product Width 4.0 10.16 inch cm
Product Length/Depth 4.0 10.16 inch cm
Product Weight 0.15 0.07 lbs kg
Weight UOM LB LB
Box Depth 1-1/2" 1-1/2"
Color Silver Silver
Cubic Capacity 15.5 (254.0) 15.5 (254.0)
Knockouts (4) 1/2 in. Side Knockouts (4) 1/2 in. Side Knockouts
Size 4 in. 4 in.
Special Features Air Tight Plenum Knockouts Air Tight Plenum Knockouts