Appleton 28-400 4 Inch Malleable Iron Conduit Connector

Product Description

The APPLETON 28-400 is a 4-inch malleable iron sealing conduit connector designed for use in electrical conduit systems requiring a secure, durable mechanical connection. Constructed from malleable iron with a stainless steel component, this connector provides the structural integrity and corrosion resistance that industrial and commercial electrical installations demand. It is intended for use by licensed electricians working with rigid or IMC conduit runs in environments where robust fittings are required. The 4-inch trade size accommodates large conduit installations typical of heavy commercial, industrial, and infrastructure projects.

This connector is suited for conduit sealing and termination applications in commercial and industrial settings, including manufacturing facilities, utility infrastructure, and large-scale electrical distribution systems. It is commonly installed where conduit systems require a reliable mechanical seal at junction points or enclosure entries. The 4-inch size makes it appropriate for high-capacity wiring runs that require correspondingly large conduit fittings.

Key Features

• 4-inch trade size for large conduit installations
• Malleable iron construction for durability and impact resistance
• Stainless steel component for added corrosion resistance
• Sealing connector design for secure conduit termination
• Suitable for heavy commercial and industrial electrical applications

Compatibility

Designed as an OEM-style replacement or direct-use fitting for 4-inch rigid metal conduit or intermediate metal conduit systems in commercial and industrial electrical installations.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the circuit before beginning any conduit work. Use appropriate conduit wrenches and thread sealants as required by the installation environment. Inspect threads on both the connector and conduit for damage before assembly.

Technical Specifications

• Trade Size: 4 inches
• Material: Malleable Iron with Stainless Steel
• Weight: 4.1 pounds
• Length: 6.2 inches
• Width: 6.1 inches
• Height: 5.4 inches
• UPC: 78312672190

Standard Information

• Brand: APPLETON
• Manufacturer Part Number: 28-400