Pass & Seymour 7803MD Three-Po...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$135.69
$96.10
Pass & Seymour 7803MD Three-Pole Manual Motor Controller, 20HP

Pass & Seymour 7803MD Three-Pole Manual Motor Controller, 20HP

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Model: 7803-MD

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

$135.69
$96.10
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Pass & Seymour 7803MD Three-Pole Manual Motor Controller, 20HP

The Pass & Seymour 7803MD is a three-pole, three-phase AC manual controller built for reliable motor disconnect and control duty. Rated for high horsepower applications up to 20HP, this cULus Listed device combines a heavy-duty zinc-plated steel strap with a glass-reinforced thermoplastic housing for long-term durability in commercial and industrial electrical systems.

Key Features

  • High Horsepower Rating: Rated 20HP for demanding three-phase AC motor control applications.
  • Durable Construction: Heavy-duty zinc-plated steel strap secured to the housing by two brass rivets for long-term structural integrity.
  • Thermoplastic Housing: Constructed of glass-reinforced thermoplastic for durability and dielectric strength.
  • Oversized Silver Alloy Contacts: Two oversized silver alloy contacts withstand years of use and improve heat dissipation by distributing arc energy.
  • Two-Point Contact Arm Design: Reduces overall unit size while maintaining reliable switching performance.
  • Gull-Wing Brass Terminal Clamps: Gull-wing shaped brass terminal pressure clamps provide a secure wiring connection.
  • One-Piece Contact Carrier: Glass-reinforced thermoplastic contact carrier ensures long-lasting make-and-break performance.
  • Finish: Matte black finish for a clean, professional appearance.

Certifications & Compliance

  • cULus Listed
  • UL508 and cULus Listing of individual device and assembled device within enclosure

Technical Specifications

  • Country Of Origin: Mexico
  • Product Color: Black
  • Product Finish: Matte
  • Product Height: 3.67 in
  • Product Line: Pass & Seymour
  • Product Width: 1.825 in
  • Product Depth: 1.753 in

Typical Applications

  • Three-Phase AC Motor Disconnect and Control
  • Commercial and Industrial Electrical Installations
  • Panelboard and Enclosure-Mounted Motor Controllers
  • Pump, Fan, and Compressor Motor Circuits
  • New Construction and Motor Control Retrofits

Why Pass & Seymour?

Pass & Seymour engineers the 7803MD with a heavy-duty zinc-plated steel strap, oversized silver alloy contacts, and a glass-reinforced thermoplastic housing to deliver dependable make-and-break performance over years of service. Backed by UL508 and cULus Listing at both the device and assembled-enclosure level, it's built for code-compliant, professional-grade motor control work.

Manufacturer Resources

Spec Sheet

Product Specs

Product Material:
Thermoplastic
Product Type:
Manual Motor Starter
Product Color:
Black
Product Finish:
Matte
Listing:
cULus
Department:
Electrical
Product Group:
Motor Control & Automation
Product Subgroup:
Motor Starters & Contactors
Product Height:
3.67 in
Product Depth:
1.753 in
Product Width:
1.825 in

Pass & Seymour 7803-MD – Frequently Asked Questions

1) Is the Pass & Seymour 7803MD a motor starter with overload protection, or just a manual on/off controller?
It's a manual motor controller, not a starter. The 7803MD switches a three-phase AC motor circuit by hand for disconnect and control duty, and it carries no overload relay or thermal element. If your motor needs running overload protection, that has to come from a separate overload device or the branch circuit protection in the panel.
2) What horsepower motor will the 7803MD handle?
The 7803MD is rated to 20HP on three-phase AC, which covers most commercial pump, fan, and compressor motors. It is a three-pole device, so all three phase legs break together.
3) Will the 7803MD fit in a standard device box or enclosure opening?
Dimensionally it's a strap-mounted device at 3.67 in high, 1.825 in wide and 1.753 in deep, with a zinc-plated steel strap riveted to the housing by two brass rivets. That depth is the figure to check against your enclosure or panelboard gutter space, since the body sits behind the mounting surface.
4) Is the 7803MD approved for use inside an enclosure, or only as a loose device?
Both. The 7803MD is cULus Listed to UL508 as an individual device and as an assembled device within an enclosure, so an inspector will accept it either mounted in a panelboard or built into an enclosure as a motor controller assembly.
5) Can the 7803MD serve as the motor disconnect required within sight of the equipment?
Yes, that's one of its intended uses. The 7803MD is built for three-phase AC motor disconnect and control, and because it is Listed both as a device and inside an enclosure, it works as the local disconnecting means at a pump, fan, or compressor as well as in a panelboard.
6) What is the difference between the Pass & Seymour 7803MD and the Leviton MS303-DSW manual motor controller?
Both are three-pole, three-phase manual motor controllers. The Pass & Seymour 7803MD is rated 20HP and is cULus Listed, with a zinc-plated steel strap, glass-reinforced thermoplastic housing, and oversized silver alloy contacts. The Leviton MS303-DSW is an industrial grade three-pole unit rated 30A at 600V AC. If your motor circuit is sized by horsepower on the drawing, the 7803MD states 20HP; if it is specified by ampere and voltage rating, the Leviton figure is 30A/600V.
7) What wire termination does the 7803MD use?
Wiring lands on gull-wing shaped brass terminal pressure clamps, which capture the conductor under a plate rather than wrapping a screw. That makes it straightforward to land stranded feeders on a three-phase motor circuit without ring terminals.
8) How does the 7803MD hold up on a motor that gets switched several times a day?
Contact duty is where this one is built up: two oversized silver alloy contacts spread arc energy to dissipate heat, a two-point contact arm keeps switching reliable in a smaller body, and the contact carrier is one-piece glass-reinforced thermoplastic for repeated make-and-break. The same glass-reinforced thermoplastic forms the housing for dielectric strength.
9) I need a manual motor controller for a smaller 30A fan circuit — is the 20HP Pass & Seymour 7803MD overkill?
For a circuit specified at 30A and 600V AC, the Leviton MS303-DSW is a three-pole, three-phase industrial grade manual motor controller rated to exactly that. The Pass & Seymour 7803MD is rated for 20HP three-phase AC motor duty, which suits larger pump, fan, and compressor loads. Match the controller to the rating called out on your motor nameplate or panel schedule.
10) Is a manual motor controller like the 7803MD the same thing as a magnetic motor starter?
No. The Pass & Seymour 7803MD is a manual motor controller used for three-phase AC motor disconnect and control duty — it is switched by hand and does not provide coil-operated remote control. The Leviton MS303-DSW is likewise a manual motor controller, three-pole at 600V AC. If your spec calls for remote start/stop or automatic control from a thermostat or PLC, a manual controller of either type is not a substitute.
11) For an institutional panelboard job that requires UL508 listing, does the Leviton MS303-DSW meet the same approval as the Pass & Seymour 7803MD?
The Pass & Seymour 7803MD is cULus Listed, with UL508 and cULus Listing covering both the individual device and the assembled device within an enclosure, which is the language most panelboard and enclosure-mounted specs ask for. The Leviton MS303-DSW is described as industrial grade, three-pole, 600V AC, 30A. If your submittal has to show UL508 at the enclosed-assembly level, the 7803MD states it directly.
12) What is the manufacturer part number and UPC for the 7803MD manual motor controller?
Order it as Pass & Seymour part number 7803-MD, UPC 785007267686. It is made in Mexico. There is one configuration, so there are no suffixes or options to specify.
13) What does the Pass & Seymour 7803MD look like once installed?
Matte black finish on the thermoplastic housing. For facilities standardizing appearance across motor control points, the color and finish are consistent across the 7803MD, which is supplied as a single model with no finish options.
How fast can I get the Pass & Seymour 7803-MD 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 7803-MD come with a warranty?
Absolutely. The Pass & Seymour 7803-MD 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 7803-MD?
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
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