2-1/2"GRD BUS W/OPN LG

Product Description

• Type: Insulated grounding bushing (threaded)
• Trade Size: 2-1/2 inch
• Material: Die-cast zinc
• Function: Provides grounding and bonding connection point for conduit systems
• Lug Style: Lay-in / C-clamp style grounding lug
• Conductor Range: Typically supports large grounding conductors (up to ~250 kcmil depending on variant)
• Use With: Rigid or IMC conduit systems
• Rating: UL/CSA listed, temperature rated (~150°C)

Common Uses

• Bonding metal conduit systems to grounding conductors
• Electrical service entrances and distribution panels
• Large commercial and industrial grounding systems
• Situations requiring a secure, code-compliant equipment ground connection

Key Idea

The ARL-456250 is a large-format grounding bushing with an integrated lug, meaning it both:

• protects conductors at the conduit entry, and
• provides a dedicated grounding connection point

It’s part of Arlington’s 450-series grounding bushing family, used when conduit size and grounding current capacity are significantly higher than standard residential fittings.