Electrical Box Caps | McMaster-Carr

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Protects while in Use

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2B999

EAR99

DFARS Specialty Metals

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789 Products

Electrical Power, Networking, and Controlling

Electrical Enclosure Plugs

Block or seal holes in outlet boxes and enclosures to keep out debris, dust, and moisture

77 products

Outlet Box Covers

Enclose wiring for outlets and switches or block off unused components

85 products

Electrical Enclosure Vents

Attach to sealed enclosures so air can flow to equalize temperature and pressure

1 product

Electrical Enclosure Drains

Release moisture to keep components dry

4 products

Raceway and Fittings

Route and guard wiring along surfaces in your facility

25 products

Electrical Enclosure Covers

Replace Fibox enclosure covers

98 products

Electrical Enclosure Drain Vents

Prevent moisture from getting trapped inside enclosures while letting air flow through

6 products

HMI Covers

Access HMI devices and other controls mounted to an enclosure while keeping out liquids and dust

117 products

Circuit Breaker Box Filler Plates

Conceal live electrical components in circuit breaker boxes to prevent injury and damage

2 products

Building and Machinery Hardware

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

253 products

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

35 products

Strut Channel Knockout Plates

Modify to fit your application and supply power where needed

1 product

Fluid Handling

Breather Vents

Maintain even pressure and vacuum as temperatures change by allowing airflow in tanks and enclosures

85 products