Description
Electric Wall Box Metal 4×2″ is a type of metal electrical box used in wiring installations. The dimensions (4 inches by 2 inches) refer to its width and height, making it more compact than the larger 4×4 box. Here’s a quick overview:
Key Features:
- Material: Typically made from steel or galvanized metal, ensuring strength, durability, and resistance to rust.
- Shape: It has a rectangular shape, and it often comes with knockouts (removable sections) to allow for conduit or cable entry.
- Depth Options: Common depths are 1-1/2 inches or deeper, allowing flexibility in wire and device accommodation.
- Capacity: The smaller size generally limits the number of wires it can safely house, making it ideal for simpler installations where fewer connections are needed.
Uses:
- Single Switches or Outlets: Commonly used to house a single switch or duplex outlet.
- Conduit or Cable Entry Point: Often used in wall installations where limited wiring is required or in areas with constrained space.
- Surface or Flush Mounting: Can be surface-mounted in places like basements or garages or flush-mounted within walls for a cleaner look.
Code and Safety:
- Following National Electrical Code (NEC) guidelines for the fill capacity is essential, as overcrowding can cause overheating or electrical hazards.
- Proper grounding, often achieved by connecting the box to the electrical grounding system, is crucial for metal boxes to prevent faults.
Benefits of Metal:
- Durability: Metal boxes offer better physical protection than plastic, which is especially useful in industrial or high-traffic areas.
- Heat Resistance: They contain heat and sparks more effectively, reducing fire risk in case of electrical faults.
The 4×2 metal box is a compact, sturdy option for more straightforward electrical installations, particularly when space is limited or a single device connection is sufficient.
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