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metal Box

Round Pan Box 1/2" Deep

Shallow round pan box for fixture installations with limited space.

4

cu.in. Volume

2

Max 14 AWG

1

Max 12 AWG

4" Round x 1/2"

Dimensions

Conductor Capacity per NEC 314.16

Maximum number of conductors that can fit in this 4 cu.in. box based on wire gauge (not accounting for devices, clamps, or grounds).

Wire GaugeVolume EachMax Conductors*
18 AWG1.5 cu.in.2
16 AWG1.75 cu.in.2
14 AWG2 cu.in.2
12 AWG2.25 cu.in.1
10 AWG2.5 cu.in.1
8 AWG3 cu.in.1
6 AWG5 cu.in.0

*Theoretical maximum for conductors only. Actual capacity will be less when including devices, clamps, and grounding conductors.

Common Applications

Light fixtures
Shallow ceiling applications

Calculate Box Fill for Round Pan Box 1/2" Deep

Use our free calculator to verify your Round Pan Box 1/2" Deep meets NEC 314.16 requirements.

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Similar Box Types

4" Square x 1-1/4" Deep

4" x 4" x 1-1/4" • 18 cu.in.

4" Square x 1-1/2" Deep

4" x 4" x 1-1/2" • 21 cu.in.

4" Square x 2-1/8" Deep

4" x 4" x 2-1/8" • 30.3 cu.in.

4-11/16" Square x 1-1/4" Deep

4-11/16" x 4-11/16" x 1-1/4" • 25.5 cu.in.

About the Round Pan Box 1/2" Deep

The Round Pan Box 1/2" Deep provides 4 cubic inches of volume for electrical connections. This metal box is commonly used for light fixtures, shallow ceiling applications. With dimensions of 4" Round x 1/2", it offers adequate space for most residential and light commercial applications.

Box Fill Calculation Example

For a typical installation using 14 AWG conductors:

  • Box volume: 4 cu.in.
  • 14 AWG conductor volume: 2.00 cu.in. each
  • Maximum conductors (theoretical): 2

Remember to account for devices (2× conductor volume each), internal clamps (1× conductor volume), and equipment grounding conductors (1× conductor volume for all grounds combined).

Practical Example: Receptacle Installation

Installing a duplex receptacle with two 14/2 NM cables in this box:

  • 4 × 14 AWG conductors = 4 × 2.00 = 8.00 cu.in.
  • 2 × grounds (count as 1) = 1 × 2.00 = 2.00 cu.in.
  • Internal clamps = 1 × 2.00 = 2.00 cu.in.
  • 1 × receptacle = 2 × 2.00 = 4.00 cu.in.
  • Total: 16.00 cu.in.

Result: 16.00 cu.in. > 4 cu.in. = NOT COMPLIANT - Use larger box

Related Resources

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