Wall Box steel Extension 4×4

Description

Wall Box Steel Extension 4×4″ is an accessory for extending the capacity of an existing 4×4 electrical box. These extensions are made of metal, usually steel, and provide additional room for wiring or devices without replacing the entire box. Here’s a breakdown of its features and applications:

Key Features:

• Material: Made of steel, offering durability and protection, especially in high-traffic or industrial areas.
• Size and Shape: Matches the standard 4×4 dimension of the box, meaning 4 inches on each side, and is designed to align seamlessly with a standard 4×4 box.
• Depth Extension: Adds extra depth to an existing box, often by about 1-1/2 to 2-1/8 inches, allowing more space for additional wires or connectors.
• Knockouts: Often comes with knockouts for easy conduit or cable access.
• Stackable: Some extensions are stackable, allowing for even more depth if multiple extensions are used.

Uses:

• Increasing Box Volume: Used to increase the internal space when additional wires, connectors, or devices are added to an existing box.
• Retrofitting: Helpful when upgrading or modifying electrical circuits where extra wiring is required but there’s limited space.
• Mounting Additional Devices: Provides room to mount extra switches, outlets, or other electrical devices alongside the existing ones.

Code and Safety:

• NEC Compliance: The National Electrical Code (NEC) requires that boxes have sufficient volume to prevent overcrowding and overheating, so extensions are often used to ensure compliance when adding more wires or devices.
• Grounding: Metal extension boxes must be grounded to ensure safety, as they are part of the grounding path in case of a fault.

Benefits of a Steel Extension:

• Durability: The steel construction resists physical impact, making it suitable for use in environments where durability is important.
• Fire Resistance: Steel extensions can contain sparks and resist fire spread better than non-metallic extensions.
• Space Efficiency: Allows for additional wiring or devices without the need for a complete box replacement, saving time and effort.

The Wall Box Steel Extension 4×4 is an effective solution for adding extra capacity to existing 4×4 electrical boxes in a safe, code-compliant way, particularly useful in retrofit projects and installations requiring additional wiring or devices.