Pass & Seymour 15A 125V Straig...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$28.60
Pass & Seymour 15A 125V Straight Blade Flanged Inlet

Pass & Seymour 15A 125V Straight Blade Flanged Inlet

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Model: 5278-SS

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

$28.60
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Pass & Seymour 15A 125V Straight Blade Flanged Inlet

The Pass & Seymour Straight Blade Flanged Inlet is a 2-Pole 3-Wire, 15A 125V power inlet built for reliable field installation on portable and stationary equipment. Constructed of all-thermoplastic material and cULus Listed, this flanged inlet is engineered for the demands of commercial and industrial power connections. The NEMA configuration is molded directly on the flange for fast, error-free field identification, and the unit is available in Gray or Black to match a range of equipment and enclosure finishes.

Key Features

  • Electrical Rating: 15A, 125V Straight Blade, 2-Pole 3-Wire configuration for standard single-phase power connections.
  • Durable Construction: All-thermoplastic housing provides excellent impact and chemical resistance for long service life in demanding environments.
  • Molded NEMA Configuration: NEMA configuration is molded on the flange, allowing for easy field identification during installation and maintenance.
  • Flanged Inlet Design: Panel-mount flanged design simplifies mounting to equipment enclosures and power distribution panels.
  • Finish Options: Available in Gray or Black to suit a variety of equipment and enclosure color schemes.
  • Listed for Safety: cULus Listed for verified compliance with recognized electrical safety standards.

Certifications & Compliance

  • cULus Listed

Technical Specifications

  • Electrical Rating: 15A, 125V
  • Configuration: Straight Blade, 2-Pole 3-Wire
  • Product Material: Thermoplastic
  • Product Line: Pass & Seymour
  • Country of Origin: Mexico
  • Packaging: 5 EA

Typical Applications

  • Portable Generator and Standby Power Connections
  • Equipment and Enclosure Power Inlets
  • Commercial and Industrial Power Distribution
  • Temporary Power Setups
  • Renovation and New Construction Electrical Work

Why Pass & Seymour?

Pass & Seymour builds this flanged inlet from all-thermoplastic material for impact and chemical resistance, with a molded-in NEMA configuration that speeds up field identification and reduces installation errors. Backed by a cULus Listing, it delivers the code-compliant, dependable performance electrical professionals expect from the Pass & Seymour line.

Manufacturer Resources

Spec Sheet

Product Specs

list_batch:
PASS-20260820
Product Type:
Power Inlet
Configuration:
2-Pole 3-Wire
Voltage Rating:
125V
Amperage Rating:
15A
Listing:
cULus
Product Material:
Thermoplastic
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Plugs & Connectors

Pass & Seymour 5278-SS – Frequently Asked Questions

1) Is the Pass & Seymour 5278-SS inlet UL listed for commercial and industrial installations?
It carries a cULus Listing, covering both US and Canadian recognition, so it can be specified on commercial and industrial work that calls for a listed power inlet.
2) Can I use a 15A 125V flanged inlet on a 20A circuit feed?
The device itself is rated 15A at 125V, so the connection point is limited to 15A regardless of what the upstream breaker is. If the equipment draws more than 15A, or the cord set is a 20A configuration, you need a 20A rated inlet instead, not this one.
3) What is the difference between a straight blade flanged inlet and a locking flanged inlet for a generator hookup?
A straight blade inlet like the Pass & Seymour 5278-SS accepts a standard non-locking cord cap, which is faster to plug and unplug but can be pulled loose under cord strain. A locking inlet twists into place and resists accidental disconnection, which is why it is the usual pick for generator and portable power feeds. If you need that, ZenSupply carries locking-style flanged inlets such as the Bryant 70520MB (70 Series) and the Bryant 7595MB, a NEMA ML-2 2-pole specification-grade inlet.
4) Can the 5278-SS flanged inlet be mounted to an equipment enclosure or power panel?
That is what it is built for. The flanged body is a panel-mount design intended to be fastened to equipment enclosures and power distribution panels, with the wiring terminated behind the panel in the field.
5) How do I confirm the NEMA configuration of this inlet once it is installed on a machine?
The NEMA configuration is molded directly into the flange on the Pass & Seymour 5278-SS, so a tech can read it off the face of the device during service without pulling it or chasing a catalog number.
6) Does this inlet include a ground connection for bonding the equipment frame?
Yes, the 2-pole 3-wire configuration provides hot, neutral, and an equipment grounding conductor, so the frame of the gear can be bonded through the cord.
7) We standardize on specification-grade wiring devices. How does the Pass & Seymour 5278-SS compare to the Bryant 7595MB on that point?
The Bryant 7595MB is identified as specification-grade. The Pass & Seymour 5278-SS is an all-thermoplastic flanged inlet, cULus Listed, with the NEMA configuration molded into the flange for field identification. If a submittal calls specifically for a specification-grade device, the 7595MB carries that designation, but note it is an ML-2 locking inlet rather than a 15A 125V straight blade unit.
8) For a portable generator inlet on equipment that may get bumped or pulled, is a locking inlet better than the Pass & Seymour 5278-SS?
The Pass & Seymour 5278-SS is a straight blade inlet, so the cord cap pulls straight off under tension; it is built from thermoplastic for impact and chemical resistance and is cULus Listed. Where the connection needs to resist being pulled apart, a locking style is the alternative: the Bryant 70520MB is a 70 Series flanged inlet in a NEMA locking-style configuration and the Bryant 71020MB is a 7 Series flanged locking inlet. The locking route requires matching locking cord caps on every cord that plugs in.
9) Will a thermoplastic inlet hold up in a wash-down or chemical exposure area?
The housing is all-thermoplastic, which gives it impact and chemical resistance for industrial service. It is not a weatherproof assembly on its own, so outdoor or wet-location use still needs an appropriate cover or enclosure rating from the install side.
10) Does the Pass & Seymour 5278-SS come in black or gray?
Both colors exist in the family, and the 5278-SS is the specific catalog number you order. Pick the color to match the enclosure or to color-code circuits across a plant.
11) Is the 5278-SS sold individually or in a multi-pack?
Packaging is 5 each, so an MRO or contractor order comes in fives rather than singles. Useful if you are standardizing inlets across several machines at once.
12) What is the difference between the Bryant 70520MB and 71020MB flanged inlets if I am cross-shopping against the Pass & Seymour 5278-SS?
Both Bryant units are locking flanged inlets from different device lines: the 70520MB is a 70 Series inlet with a NEMA locking-style configuration, and the 71020MB is a 7 Series flanged locking inlet. The Pass & Seymour 5278-SS differs from both in that it is a straight blade 2-pole 3-wire inlet rated 15A 125V with the NEMA configuration molded on the flange. Match the inlet to the cord cap already in service rather than the series name.
13) Where can I get the full spec sheet for the Pass & Seymour 5278-SS flanged inlet?
Pass & Seymour publishes a spec sheet for the 5278-SS, and it is linked in the product documentation for the inlet. That is the document to attach to a submittal package.
How fast can I get the Pass & Seymour 5278-SS 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 5278-SS come with a warranty?
Absolutely. The Pass & Seymour 5278-SS 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 5278-SS?
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 5278-SS from ZenSupply?
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