Leviton Industrial Specificati...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$21.89
Leviton Industrial Specification Grade Heavy-Duty Straight Blade Single Receptacle

Leviton Industrial Specification Grade Heavy-Duty Straight Blade Single Receptacle, 15A 250V NEMA 6-15R Ivory

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Model: 5661-I

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

$21.89
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Leviton Industrial Specification Grade Heavy-Duty Straight Blade Single Receptacle

The Leviton Industrial Specification Grade Heavy-Duty Straight Blade Single Receptacle is built as a single-outlet device for demanding commercial and industrial electrical circuits. Rated 15A at 250V with a NEMA 6-15R configuration and finished in Ivory, it combines industrial specification grade construction with straight blade reliability for daily plug-and-unplug cycles, mechanical stress, and continuous-duty equipment loads. Electricians and facility maintenance teams rely on receptacles at this grade level when a standard residential-duty device simply won't hold up to the job.

Key Features

  • Electrical Rating: 15A, 250V for dedicated equipment and tool circuits.
  • NEMA Configuration: NEMA 6-15R receptacle pattern for reliable straight blade plug engagement.
  • Industrial Specification Grade: Engineered to a higher performance and durability standard than residential or standard commercial devices, supporting demanding day-to-day use.
  • Heavy-Duty Construction: Reinforced internal components and robust housing are designed to withstand frequent plugging cycles and rugged jobsite or plant-floor conditions.
  • Straight Blade Design: Accepts straight blade attachment plugs for straightforward, reliable connection and disconnection of equipment and tools.
  • Single Receptacle Configuration: A dedicated single-outlet design, well suited to circuits feeding a specific piece of equipment or machinery.
  • Ivory Finish: Clean, neutral device color for commercial and industrial installations.
  • Professional-Grade Reliability: Consistent, code-compliant performance intended for use by licensed electricians and maintenance professionals in commercial and industrial settings.

Certifications & Compliance

  • NEMA 6-15R Rated Configuration

Technical Specifications

  • Amperage: 15A
  • Voltage: 250V
  • NEMA Rating: 6-15R
  • Product Color: Ivory

Typical Applications

  • Commercial and Industrial Electrical Installations
  • Manufacturing and Plant-Floor Equipment Connections
  • Heavy Machinery and Tool Power Connections
  • Panelboard-Fed Dedicated Equipment Circuits
  • Facility Renovation and New Construction Wiring

Why Leviton?

Leviton's industrial specification grade receptacles are designed for professionals who need dependable, heavy-duty performance day after day. This 15A, 250V NEMA 6-15R straight blade single receptacle reflects that focus on rugged construction and consistent, code-compliant electrical connections for commercial and industrial environments. Shop ZenSupply for Leviton devices trusted by electrical contractors and facility teams alike.

Manufacturer Resources

Product Specs

Product Type:
Single Receptacle
Connection Type:
Straight Blade
Amperage Rating:
15A
Voltage Rating:
250V
Nema Rating:
6-15R
Grade:
Specification
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Receptacles & Outlets

Leviton 5661-I – Frequently Asked Questions

1) Will a NEMA 6-15R receptacle work for 240V equipment like a small welder or shop heater?
The Leviton 5661 is rated 15A at 250V with a NEMA 6-15R face, which is the standard two-hot-plus-ground 240V configuration. Anything with a 6-15P plug cap drawing 15 amps or less at 240/250V lands on it. It will not accept a 5-15P (125V) plug, and it is not a 20A device, so a 6-20P with its sideways blade will not insert.
2) Is a single receptacle the right choice, or should I use a duplex?
The 5661 is a single-outlet device, one 6-15R face on the strap. That is what you want on a dedicated circuit feeding one machine, and in many cases code requires a single receptacle on an individual branch circuit so nothing else gets plugged in alongside the equipment. If you need two 240V outlets on the same circuit, a single receptacle is the wrong device.
3) What does specification grade mean on this Leviton receptacle, and is it worth it over a residential device?
Specification grade is the industrial tier of receptacle build: reinforced internal contacts and a heavier housing meant to survive repeated plug-and-unplug cycles and plant-floor abuse. A residential-duty device loosens its blade grip long before this one will. On tool circuits, machine drops, and anything unplugged daily, the grade is the whole reason to buy it.
4) Can I use the Leviton 5661 on a 208V three-phase circuit?
Yes, across two legs. The device is rated to 250V, which covers 208V line-to-line as well as 240V single phase. The 6-15R pattern gives you two hot terminals and a ground, with no neutral, so the load has to be a straight two-wire 240/208V load.
5) What wire and breaker size do I need for a 15A 250V straight blade receptacle like this?
A 15A 240V receptacle goes on a two-pole 15A breaker with two hot conductors and an equipment ground, no neutral, sized to the 15A circuit ampacity. The 5661 terminates a straight blade 6-15R connection, so the plug cap on the equipment must match; there is no neutral terminal on the device to land a white conductor.
6) My equipment has a twist-lock plug. Will it fit this receptacle?
No. The 5661 is a straight blade device, NEMA 6-15R. A twist-lock cap (an L6-15P, for instance) has curved blades and will not enter a straight blade face. For a locking connection at 250V you need a matching locking receptacle, not this one.
7) What colors does the Leviton 5661 single receptacle come in?
Two: Ivory, ordered as 5661-I, and White, ordered as 5661-W. Both are the same 15A 250V 6-15R single receptacle, so pick whichever matches the other devices on the wall.
How fast can I get the Leviton 5661-I 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 Leviton 5661-I come with a warranty?
Absolutely. The Leviton 5661-I 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 Leviton 5661-I?
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 Leviton 5661-I from ZenSupply?
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