SEPCO 27BIOLSS Threadless Insulated Ground Bushing, Zinc-Plated Malleable Iron

SEPCO 27BIOLSS Threadless Insulated Ground Bushing, Zinc-Plated Malleable Iron

The SEPCO 27BIOLSS Threadless Insulated Ground Bushing is a zinc-plated malleable iron grounding fitting designed for reliable equipment grounding at conduit and raceway terminations, available in 3-Inch and 4-Inch trade sizes to cover larger panelboard, enclosure, and junction box connections. Its threadless design speeds installation onto conduit runs, while the insulated throat protects conductor insulation from abrasion and maintains a continuous, low-resistance ground path back to the enclosure. Built for commercial and industrial electricians, this ground bushing is engineered to withstand repeated handling, conductor pulls, and routine maintenance across both the 3-Inch and 4-Inch sizes in the SEPCO 27BIOLSS lineup.

Key Features

• Trade Size Range: Offered in 3-Inch and 4-Inch trade sizes for larger conduit terminations at panelboards, enclosures, and junction boxes.
• Insulated Throat: A smooth, insulated bore shields conductor insulation from abrasion and cutting at the termination point while preserving continuous, low-resistance grounding back to the enclosure.
• Durable Malleable Iron Construction: The solid malleable iron body resists impact, distortion, and rough jobsite handling far better than lightweight stamped alternatives, holding its shape through installation and service life.
• Zinc-Plated Finish: The zinc-plated coating adds corrosion resistance, helping the bushing resist rust and maintain a clean, dependable ground connection over time.
• Threadless Design: A threadless connection simplifies installation onto conduit runs without matched threading, speeding up rough-in and reducing fit-up time in the field.
• Reliable Grounding Continuity: As a dedicated ground bushing, the 27BIOLSS helps maintain equipment grounding continuity at conduit terminations, a key requirement for safe, code-compliant electrical systems.

Technical Specifications

• Trade Size: 3-Inch - 4-Inch

Typical Applications

• Commercial and Industrial Electrical Installations
• Conduit and Raceway Grounding
• Panelboard and Enclosure Terminations
• Junction Box and Cabinet Wiring
• Renovation and New Construction Wiring

Why SEPCO?

SEPCO manufactures electrical fittings built for dependable field performance, and the 27BIOLSS ground bushing carries that standard forward with a solid malleable iron body, a protective zinc-plated finish, and an insulated, threadless design spanning 3-Inch and 4-Inch sizes for larger conduit runs. This focus on practical jobsite installation without sacrificing durability is what contractors expect from a grounding component. Electrical contractors rely on SEPCO components for consistent quality on conduit and grounding installations where durability and code-compliant performance matter.