1" Aluminum Close Up Plug – Electrical Enclosure Seal

The 1" Aluminum Close Up Plug is designed to close up taped holes or hubs in electrical enclosures, providing a secure seal for wire and cable entries. Manufactured by Killark, this product is suitable for use in electrical distribution, lighting solutions, and switchgear applications requiring reliable closure of unused conduit openings. It is ideal for electrical distributors and contractors needing durable components for safe and compliant installations.

Specifications

• Material: Aluminum, Copper Free (less than 4/10 of 1%)
• Color: Gray
• Finish: Natural
• Hub Size: 1"
• Dimensions: 2 in (Width) x 2 in (Height) x 1 in (Length)
• Product Weight: 0.0700 lbs
• Manufacturer: Killark
• Manufacturer Part #: CUP-3
• Country of Origin: United States
• Made in USA: Yes

Features

• Designed to close up taped holes or hubs in electrical enclosures
• Constructed from copper-free aluminum for corrosion resistance
• Compatible with 1" NPT threaded openings
• Natural finish for durability and longevity
• Suitable for hazardous location applications with compliance to IECEx and ATEX certifications (per Killark data sheet)
• Easy installation with hand tight plus one wrench turn per ANSI/ASME B1.20.1-1983 standards

Downloads & Links

• Installation Manuals Asset Reference
• Sales Drawing Asset Reference
• STEP 3D Model Asset Reference
• Customer Notices Asset Reference
• Certification Document Asset Reference 1
• CUP-3 Engineering Drawing
• Spec Sheet
• Certification Document Asset Reference 2
• Catalog Full Asset Reference