The Southwire 52171-S-UPC 4" x 2-1/8" Square Box is a rugged, welded steel junction/outlet box designed for high-performance electrical installations. With a generous 30.3 cubic inch capacity and multiple knockout configurations, this box offers superior flexibility for routing conductors in commercial and residential applications. Its galvanized steel construction ensures durability and corrosion resistance, while compliance with UL and RoHS standards guarantees safety and environmental responsibility.
Ideal for indoor use, this box is NEMA 1 rated and includes raised ground provisions and combination Phillips/slotted screw heads for easy installation. Whether you're managing complex wiring layouts or standard power distribution, the 52171-S-UPC delivers reliable performance in a compact, square form factor.
Key Features
Raised Ground Provision for secure grounding
Combination Phillips/Slotted Screw Heads for versatile tool compatibility
Welded Construction for enhanced structural integrity
UL Listed & RoHS Compliant for safety and environmental standards
Galvanized Steel Material for corrosion resistance
16 Total Knockouts for flexible conduit entry
Indoor Rated with NEMA 1 classification
1-Year Limited Warranty
Specifications
Shape: Square
Material: Galvanized Steel
Depth: 2-1/8 in
Dimensions: 4 in x 4 in x 2-1/8 in
Cubic Capacity: 30.3 cu in
Knockouts:
Side: (8) 1/2 in, (4) 1/2 & 3/4 in combo
Bottom: (2) 1/2 in, (2) 3/4 in
Total Knockouts: 16
Application: Junction/Outlet Box
Indoor Use: Yes
NEMA Rating: NEMA 1
Warranty: 1-Year Limited
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ShapeSquare
BrandSouthwire
Length2-1/8 Inch
Length4 Inch
Raised GroundYes
Combination Phillips/Slotted screw headsYes
UL ListedYes
RoHS CompliantYes
Welded ConstructionYes
MaterialGalvanized Steel
ShapeSquare
Depth2-1/8 in
Dimensions4 in x 4 in x 2-1/8 in
Cubic Capacity30.3 cu in
Knockouts(8) 1/2 in side, (4) 1/2 & 3/4 in combo side, (2) 1/2 in bottom, (2) 3/4 in bottom