Pass & Seymour Porcelain Medium Base 4-Terminal Keyless Lampholder

Pass & Seymour Porcelain Medium Base 4-Terminal Keyless Lampholder

The Pass & Seymour Porcelain Medium Base 4-Terminal Keyless Lampholder is a one-piece porcelain lampholder rated 250V, built for straightforward, long-lasting incandescent lighting in fixtures where a fixed, non-switched socket is required. It features 4 terminals fitted with Tamper-Resistant-drive screws for secure, code-conscious wiring, and its one-piece porcelain body fits standard 3 1/4-inch and 4-inch electrical boxes for flexible mounting in a variety of enclosures. Backed by UL, cULus, and CSA listings, this lampholder is engineered for reliable performance in commercial and residential lighting circuits.

Key Features

• Medium Base Socket: Accepts standard medium (E26-style) base lamps for common incandescent and compatible lighting applications.
• Durable Construction: One-piece porcelain body resists heat buildup and provides long-term dimensional stability compared to lower-grade materials.
• 4-Terminal Wiring: Four terminals equipped with Tamper-Resistant-drive screws allow secure, tool-specific wire terminations that resist tampering.
• Keyless Design: One-piece keyless configuration with no external switch, simplifying installation where the fixture or a separate switch controls power.
• Box Compatibility: Sized to fit 3 1/4-inch and 4-inch electrical boxes, supporting common rough-in configurations.
• 250V Rating: Rated for 250V circuits, suiting a range of standard lighting installations.
• Finish: Supplied in white to blend with common fixture and ceiling finishes.

Certifications & Compliance

• UL Listed
• cULus Listed
• CSA Listed

Technical Specifications

• Product Line: Pass & Seymour
• Base Type: Medium Base
• Terminals: 4-Terminal with Tamper-Resistant-drive screws
• Voltage Rating: 250V
• Material: Porcelain, one-piece keyless construction
• Box Fit: 3 1/4-inch and 4-inch boxes
• Color: White
• Country of Origin: China
• Packaging: 50 EA

Typical Applications

• Commercial and Residential Lighting Fixtures
• Utility and Storage Room Lighting
• Fixture Retrofits and Replacements
• New Construction Electrical Rough-In
• Panel and Enclosure Lighting Circuits

Why Pass & Seymour?

Pass & Seymour builds this lampholder from durable one-piece porcelain with Tamper-Resistant-drive terminal screws, giving installers a rugged, secure socket that holds up to repeated use. With UL, cULus, and CSA listings behind it, this lampholder delivers the code-compliant, dependable performance electrical professionals rely on for everyday lighting circuits.