Connection Boxes | McMaster-Carr

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Fiberglass-Reinforced Polymer Concrete

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2,777 Products

Electrical

Electrical Enclosures

Electrical Enclosures

House and protect power supplies, control panels, and other electrical equipment

Electrical Enclosure Covers

Electrical Enclosure Covers

Replace Fibox enclosure covers

Electrical Enclosure Panel Mounts

Electrical Enclosure Panel Mounts

Add a secondary panel that swings to mount more components in your enclosure

Electrical Enclosure Pedestals

Electrical Enclosure Pedestals

Mount enclosures at a comfortable height to access switches, displays, and other controls

Electrical Enclosure Pole Mounts

Electrical Enclosure Pole Mounts

Everything you need to secure enclosures to round poles or beams

Electrical Enclosure Floor Stands

Electrical Enclosure Floor Stands

Mount enclosures to the floor above hazards such as water

Electrical Enclosure Positioning Arms

Electrical Enclosure Positioning Arms

Hang your human-machine interface and swivel it around to save floor space and access equipment

Outlet Boxes

House electrical components such as on-off switches, receptacles, and dimmer knobs

Outlet Box Covers

Outlet Box Covers

Enclose wiring for outlets and switches or block off unused components

Outlet Box Extenders

Outlet Box Extenders

Add depth to an outlet box when there’s not enough space for components

Potting Boxes

Fill with potting compound to protect electronic assemblies from dust, moisture, and vibration

Raceway and Raceway Fittings

Raceway and Raceway Fittings

Route and guard wiring along indoor surfaces

Tablet Enclosures

Tablet Enclosures

Protect tablets and displays from dust and washdowns

Single-Board Computer Enclosures

Single-Board Computer Enclosures

Protect your Raspberry Pi, Arduino, or other board from dust and impact

Electronics Racks

Electronics Racks

Mount servers, automation controls, and computers in less space than electronics cabinets

Electronics Cabinets

Electronics Cabinets

Store and organize servers, computers, and automation controls

Console Enclosures

Console Enclosures

Build out interfaces with buttons, gauges, and other components to monitor and control machinery

Underground Enclosures

Underground Enclosures

Bury in the ground or in concrete to protect and access utilities such as electric and water lines

Circuit Board Enclosures

Circuit Board Enclosures

Hold circuit boards to protect them from dust, liquids, or overheating

Wall Plates

Cover switches and outlets for a finished look or to close them off when not in use

Terminal Blocks

Terminal Blocks

Create tidy rows of wire connections that you can identify, test, and adjust on the spot

Battery Holders

Battery Holders

Create an electrical connection between batteries and contacts to power equipment

Fluid Handling

Thermocouple Connectors

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

Measuring and Inspecting

Load Cell Junction Boxes

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

Building and Machinery Hardware

Strut Channel Framing and Fittings

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)