4" Square Extension Ring, 2-1/8" Deep - Welded, W/Conduit KO's

Southwire #: 53171-S Model #: 53171-S In Stock

4" square extension rings are added to junction boxes to increase wiring capacity and provide access for additional conduit runs and electrical wire. Extension rings prevent the need to remove old conduit boxes and wiring from circuits when additional capacity is needed.

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Features & Benefits

  • Combination knockouts allow for greater wiring flexibility
  • Combination Phillips/Slotted screw heads.

Specifications

measurement
imperial metric
Stock # 53171-S 53171-S
Model # 53171-S 53171-S
UPC # 785592531636 785592531636
Material Galvanized Steel Galvanized Steel
Cubic Capacity 30.3 (496.5) 30.3 (496.5)
Standard Package 25 25
Bottom Knockouts (2) 3/4", (3) 1/2" (2) 3/4", (3) 1/2"
Side Knockouts (6) 1/2", (6) 1/2" - 3/4" (6) 1/2", (6) 1/2" - 3/4"
Color Silver Silver
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