Orbit Industries GL-300 Grounding Locknut 3 Inch

Product Description

The ORBIT INDUSTRIES GL-300 is a grounding and bonding rigid locknut designed for use with threaded conduit installations. It fastens threaded conduit to unthreaded openings in electrical boxes and enclosures, maintaining a secure grounding path across the connection. Built for harsh vibration environments, the GL-300 holds its position where standard locknuts may loosen over time. This locknut fits a 3-inch trade size conduit and is sold in a standard package of 5 units. Licensed electricians and conduit installers are the primary trade installing this fitting in commercial and industrial applications.

The GL-300 is suited for rigid metal conduit installations in environments where vibration is a concern, such as mechanical rooms, industrial facilities, manufacturing floors, and utility service equipment enclosures. Its bonding function ensures that the conduit system maintains electrical continuity at each box or enclosure connection point, which is a code requirement in many installations governed by the National Electrical Code.

Key Features

• Grounding and bonding design maintains electrical continuity at conduit-to-enclosure connections
• Rated for harsh vibration environments where standard locknuts are inadequate
• Fits 3-inch trade size threaded rigid conduit
• UL Listed under File Number E310659
• Sold in a standard package of 5 units

Compatibility

Designed as an OEM-style grounding bonding locknut for use with 3-inch trade size threaded rigid metal conduit terminating at unthreaded knockouts in electrical boxes and enclosures.

Installation Notes

Installation is performed by a licensed electrician in accordance with applicable NEC requirements for grounding and bonding of metal conduit systems. De-energize all circuits in the enclosure before beginning conduit termination work. Thread the locknut onto the conduit and tighten against the inside wall of the enclosure to ensure firm metal-to-metal contact for the bonding path. Do not substitute a standard locknut where a grounding bonding locknut is specified.

Technical Specifications

• Trade Size: 3 inches
• Standard Package Quantity: 5 units
• Master Carton Quantity: 25 units
• Certifications: UL Listed
• UL File Number: E310659

Standard Information

• Brand: ORBIT INDUSTRIES
• Manufacturer Part Number: GL-300