Pass & Seymour Porcelain Mediu...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.93
Pass & Seymour Porcelain Medium Base 4-Terminal Keyless Lampholder

Pass & Seymour Porcelain Medium Base 4-Terminal Keyless Lampholder

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Model: PSE-274

In Stock (leaves warehouse same day if ordered before 3pm ET)

$4.93
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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.

Manufacturer Resources

Spec Sheet

Product Specs

list_batch:
PASS-20260820
Product Type:
Lampholder
Voltage Rating:
250V
Bulb Base:
Medium
Listing:
cULus
Product Material:
Porcelain
Product Color:
White
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Lampholders & Sockets

Pass & Seymour PSE-274 – Frequently Asked Questions

1) Will the Pass & Seymour 274 porcelain lampholder mount to a 4-inch octagon or round electrical box?
Yes. The 274 keyless porcelain lampholder is sized to fit standard 3-1/4 inch and 4-inch boxes, which covers the common ceiling rough-in on utility and storage room lighting. It mounts directly to the box; no separate fixture canopy is needed.
2) Does this porcelain lampholder have a pull chain, or do I need a wall switch?
No pull chain. The 274 is a keyless lampholder, meaning there is no switch on the body at all, so power has to be controlled upstream by a wall switch, a sensor, or a breaker. If a tenant needs to switch the light at the fixture, you want a pull-chain (keyed) porcelain holder instead.
3) Is the Pass & Seymour 274 lampholder UL listed for commercial work?
It carries UL, cULus, and CSA listings, so it is acceptable for both US and Canadian installations. Voltage rating is 250V, which covers standard 120V and 277V lighting branch circuits.
4) What bulb does the Pass & Seymour 274 lampholder take?
It takes a medium base lamp, the standard E26-style screw base used on ordinary incandescent bulbs. Any medium base lamp within the fixture's wattage limits threads straight in, so it is a direct fit for the bulbs most buildings already stock.
5) Why does this lampholder have 4 terminals instead of 2?
The four terminals let you land both the incoming and outgoing conductors at the socket, so you can feed through to the next lampholder or device without a separate splice in the box. The screws are Tamper-Resistant drive, so terminations need the matching bit, which is a point in favor on multi-family common areas and utility rooms where you do not want casual access to the wiring.
6) Is porcelain worth it over a plastic lampholder for a utility room socket?
Porcelain is the choice where the socket runs hot or runs for long hours. The 274 uses a one-piece porcelain body, which handles heat buildup from incandescent lamps and holds its shape over time better than thermoplastic holders. For basements, closets, mechanical rooms, and garages on an MRO replacement program, it is the standard spec.
7) How is the 274 lampholder packaged for a bulk order?
It ships 50 each per pack, which suits standardizing across a portfolio or stocking an MRO crib rather than a one-off repair. Color is white in all cases.
8) Is there only one version of the Pass & Seymour 274, or do I need to pick a finish or base size?
One configuration only: model 274, white porcelain, medium base, keyless, 250V. There is no finish, base, or switch option to specify, so the part number is all you need on the order.
How fast can I get the Pass & Seymour PSE-274 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Pass & Seymour PSE-274 come with a warranty?
Absolutely. The Pass & Seymour PSE-274 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Pass & Seymour PSE-274?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Pass & Seymour PSE-274 from ZenSupply?
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