Advance Tabco
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Appleton Century Crofts
Appleton Century Crofts PLG-300A IMC Plug 3 in conduit
Seals 3-inch IMC conduit ends with a threaded aluminum plug rated for hazardous locations
- TypeCable Management & Conduit
- Aluminium construction resists corrosion in harsh environments
- Threaded 3-inch male NPT fits IMC and rigid conduit
- Hazardous-location rated for Class I, II and III divisions
- Plain finish simplifies inspection and maintenance
- Compact 5/8-inch length suits tight conduit runs
Application and purpose
The Appleton Century Crofts PLG-300A is a hazardous-location conduit plug designed for 3-inch IMC systems. It provides a sealed termination point for male-threaded conduit runs in industrial environments. The fitting suits electrical contractors and maintenance teams working in classified areas where explosion-proof integrity is required. Aluminium construction with a plain finish resists corrosion in harsh conditions.
Thermal and power characteristics
As a passive mechanical fitting the plug generates no heat and draws no electrical power during normal operation. Its aluminium body simply conducts ambient temperature without contributing to thermal load. No moving parts or active components mean silent performance and zero energy consumption. The plain finish adds no insulating layer that would alter thermal behaviour.
Sustained-load behaviour
Under continuous service the plug maintains its hazardous-location rating across Class I, II and III divisions without degradation. Thread engagement stays secure through vibration and thermal cycling because the straight orientation and male-to-male ends lock directly into IMC conduit. The 5/8-inch overall length keeps the profile compact inside enclosures while preserving the full 3-inch trade-size seal. No maintenance or re-torquing is needed over the installation life.
Highlights
- Aluminium construction resists corrosion in harsh environments
- Threaded 3-inch male NPT fits IMC and rigid conduit
- Hazardous-location rated for Class I, II and III divisions
- Plain finish simplifies inspection and maintenance
- Compact 5/8-inch length suits tight conduit runs
Specifications
| Type | Cable Management & Conduit |
|---|---|
| Brand | APPLETON ELECTRIC |
Questions about this item
How do you install the PLG-300A IMC plug and what is the common mistake?
Thread the male MNPT ends into the 3 in IMC conduit until the 5/8 in body seats fully; the step often missed is confirming the straight orientation so the hazardous-location seal remains intact.
What maintenance or replacement will the PLG-300A IMC plug need over time?
Inspect the unfinished aluminum threads periodically for corrosion or galling; replace the plug if the threads no longer engage cleanly or if the hazardous-location rating is compromised.
What is the first limit that appears when the PLG-300A IMC plug is under sustained use?
The plain aluminum finish offers no added corrosion protection, so thread degradation in harsh environments becomes the limiting factor before the Class I, Division 1 and 2, Groups A, B, C, D rating is affected.
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