PC1816SS | Stahlin 18.0x16.0x11.0" PolyStar Series Polycarbonate Enclosure – NEMA 4X – Opaque Cover with Stainless Steel Latches
SKU: 5349759788

PC1816SS | Stahlin 18.0x16.0x11.0" PolyStar Series Polycarbonate Enclosure – NEMA 4X – Opaque Cover with Stainless Steel Latches

Sale price$180.50 Regular price$200.56
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Description

PC1816SS | Stahlin 18.0x16.0x11.0" PolyStar Series Polycarbonate Enclosure – NEMA 4X – Opaque Cover with Stainless Steel LatchesNeed a quote or custom modification? Contact ACI Automation. Request a Quote Product Overview PolyStar Series polycarbonate enclosures deliver heavy duty NEMA 4X protection in a lightweight, chemical resistant design. Self extinguishing, non halogenated, UL 746C F1 UV rated for outdoor exposure. Available in opaque, clear, white, black, with mounting flanges or SS latches. The PC1816SS is a PolyStar Series Polycarbonate enclosure with a Opaque Cover

Need a quote or custom modification? Contact ACI Automation. Request a Quote →

Product Overview

PolyStar™ Series polycarbonate enclosures deliver heavy-duty NEMA 4X protection in a lightweight, chemical-resistant design. Self-extinguishing, non-halogenated, UL 746C F1 UV-rated for outdoor exposure. Available in opaque, clear, white, black, with mounting flanges or SS latches.

The PC1816SS is a PolyStar Series Polycarbonate enclosure with a Opaque Cover with Stainless Steel Latches configuration, rated NEMA 1, 3R, 4, 4X, 6P, 12 / IP66, cULus Listed File #E64358, and CSA Certified. Manufactured in the USA using Stahlin's SolarGuard® proprietary formulation for superior chemical resistance, UV durability, and flame retardancy.

A proven non-metallic alternative to NEMA 4X enclosures from Allied Moulded, Hoffman, Hammond, Saginaw, Wiegmann, Hubbell, Fibox, Integra, and AttaBox.

Key Features

  • NEMA 1, 3R, 4, 4X, 6P, 12 rated — IP66 per IEC 60529
  • cULus Listed (File #E64358) — UL 50, UL 50e, UL 508A
  • CSA Certified C22.2
  • SolarGuard® non-halogenated Polycarbonate — UL 94-5VA flammability rating
  • Continuous poured-in-place polyurethane seamless gasket
  • 304 stainless steel hinge and hardware throughout
  • Molded-in brass inserts for superior pull-out strength
  • Temperature range: -40°F to +185°F
  • Back panels: aluminum, carbon steel, SS, fiberglass, or ABS
  • ModRight® custom modification program compatible
  • Made in USA

Specifications

Catalog Number PC1816SS
Series PolyStar Series
Material Polycarbonate
Interior Dimensions 18.0 x 16.0 x 11.0 in (interior)
Cover Type Opaque Cover with Stainless Steel Latches
Color RAL 7035 Light Gray
NEMA Types 1, 3R, 4, 4X, 6P, 12
IEC Rating IP66
UL Standards UL 50, UL 50e, UL 508A
cULus Listed File E64358
CSA Standard C22.2
Temperature Range -40°F to +185°F
Flammability UL 94-5VA
Flame Spread NFPA 101 Class A
UV Outdoor Rating UL 746C (f1) Rated
Gasket Closed-Cell EPDM Foam
Country of Origin USA
Availability Usually Stocked — ships within 5 days
List Price $401.11

Applications

✓ Machine control panels
✓ Wastewater treatment
✓ Oil & gas instrumentation
✓ Solar & renewable energy
✓ Marine & offshore
✓ Food & beverage processing
✓ Car wash and wet environments
✓ Mining and heavy industrial
✓ HVAC and building automation
✓ Utility and power distribution
✓ OEM equipment manufacturing
✓ Chemical processing

Competitor Cross-Reference

The Stahlin PC1816SS replaces comparable NEMA 4X enclosures from Allied Moulded, Hoffman, Hammond, Saginaw, Wiegmann, Hubbell, Fibox, Integra, and AttaBox. Non-metallic construction eliminates rust, eliminates painting, reduces weight, and delivers superior chemical resistance — often at a lower total installed cost.

Manufacturer Comparable Series Stahlin Advantage
Hoffman (nVent) A-Series / N4X Steel Non-metallic: zero corrosion, no painting, lighter weight
Hammond Mfg 1414 / 1481 Steel N4X SolarGuard® fiberglass for superior outdoor UV resistance
Saginaw Control SCE Steel Series USA-made fiberglass vs. imported steel alternatives
Wiegmann (Hubbell) WC / N Series Steel Full 304 SS hardware; poured PU seamless gasket
Fibox CAB / MNX Polycarbonate SolarGuard® for high-temp and heavy UV applications
Integra Polycarbonate Series cULus + CSA dual-listed; broader back panel options
AttaBox Centurion Series Extended temp -76°F; integral flange — no assembly
Hubbell Wiring NEMA 4X Polyester UL 746C f1 outdoor rated + ModRight custom mod program
Allied Moulded Series 400 Fiberglass cULus + CSA dual-listed; SolarGuard® UV rating; Made in USA

CAD Drawing Downloads

Download certified CAD drawings for PC1816SS:

Frequently Asked Questions

What NEMA ratings does the PC1816SS carry?

The PC1816SS is rated NEMA 1, 3R, 4, 4X, 6P, 12, protecting against dust, oil, coolants, rain, sleet, hose-directed water, and submersion. Also rated IP66 per IEC 60529.

Is this enclosure cULus Listed?

Yes. The PC1816SS is cULus Listed under File #E64358 per UL 50, UL 50e, and UL 508A, and CSA Certified to C22.2.

What back panel options are available?

Back panels are available in aluminum (AL), painted carbon steel (CS), stainless steel (SS), fiberglass (FG), and ABS. Add the suffix to your order. Contact ACI Automation for sizing and compatibility guidance.

Can I modify or customize this enclosure?

Yes. Stahlin's ModRight® program supports custom cutouts, windows, printing, laser engraving, mold-in colors, DIN rail kits, EMI/RFI shielding, and custom mounting. Submit your request through ACI Automation.

How do I get pricing?

ACI Automation is an authorized Stahlin distributor. List price is shown above. Request a quote for distribution pricing and lead times.

What is the lead time?

Availability code B: Usually Stocked — ships within 5 days. Contact ACI Automation to confirm current stock.

What is the temperature rating?

The PC1816SS is rated -40°F to +185°F — suitable for cold storage, outdoor industrial, and elevated-temperature applications.

Ready to Order or Need a Custom Quote?

ACI Automation is your authorized Stahlin distributor. We serve OEM panel builders, system integrators, and MRO customers with fast quotes, application support, and ModRight custom solutions.

Request a Quote
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 5349759788

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4.6 ★★★★★
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Nick Papagiorgio
Draper, US
★★★★★ 3
A bit iffy on these plates
Color: Brown, Size: 9 in - 75 count, Color: Brown, Size: 9 in - 75 count
These plates are ok, but certainly not the best I've found. On the positive side, they are what I'd consider "Lunch Size" an are somewhat sturdy. They'll hold a sandwich and chips with little effort so, as a plate, they do... plate. Where I am a bit hesitant is in their molding an construction. You can see in my photos that there is significant staining/watermarking on the plates from the manufacturing process. This could be simply from the way the wet pulp was extruded and formed, but it honestly gives me a bit of the ick. Not that it's particularly gross, but it does make me wonder how sanitary the plates are or what binders might be leeching into my food. In my last photo, you can see a comparison to a compostable plate that I really like. The finish is cleaner and the mold included an inner ridge which gives the plate more stability - making it less likely to flex under weight. Both are sugar cane fiber plates and my preferred plate is a few dollars more expensive for a comparable pack, but the clean appearance and extra rigidity make it worth the added spend in my opinion. Ranking these 3-stars might lead some to think they're bad - and to be clear, I don't think they are. They're just adequate. If you're looking to save a few bucks on a compostable plate, these WILL get the job done. I would just shy away from using them with wet or acidic foods since they don't boast the highest quality of manufacture.
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Reviewed in the United States on March 12, 2026
A
Ai
Port Orchard, US
★★★★★ 4
Strong Eco Friendly Plates But Not Great For Hot Food
Color: Brown, Size: 9 in - 75 count
I picked these up because I wanted something more environmentally friendly than the usual plastic or paper stuff. They are made from bamboo and bagasse, and you get a good amount in the pack for the price. For dry stuff like snacks or sandwiches, they are super sturdy and do not bend at all when you pick them up. However, they do not hold up very well when you put hot or wet food on them. Even though they are supposed to be heavy duty, I noticed they can get a little soft if the food is really steaming. They are still perfect for a quick lunch or a party where you want an easy cleanup, but you might want to double them up if you are serving something heavy and hot. The plates are big, and you get quite a bit, making it a really good value overall.
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Reviewed in the United States on March 13, 2026
A
Annette
Waukegan, US
★★★★★ 5
Heavy duty paper plates
Color: Brown, Size: 10 in - 75 count
These disposable plates are amazing. They're large enough to hold an entire Thanksgiving meal. They're sturdy and strong, and won't buckle even when supporting quite a lot of weight. They don't get soggy even when I deliberately poured water in them. The sides are built up to keep food from falling off the plate. These are everything you'd need in a disposable plate, and they're biodegradable, too! These are ideal for barbeques or outdoor entertaining, or even for everyday use in the kitchen.
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Reviewed in the United States on March 16, 2026
A
Amazon Customer
Massapequa, US
★★★★★ 5
Compostable Paper Plates
Color: Brown, Size: 9 in - 75 count
I ordered these because I like using paper plates and wanted to see if the compostable ones were strong enough for regular use. They're sturdier than regular paper plates due to the increased thickness of these. I've put heavy food on them like ribs and sides and they haven't bent under the weight. They feel more like pressed cardboard than paper and hold up through a full meal without getting soft. The brown color is a little utilitarian looking but that doesn't really matter for what they are. I guess I wouldn't use them for a party or something fun like that. They stack neatly and take up about the same space as regular paper plates.
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Reviewed in the United States on March 10, 2026
H
Happydays_5678
Chelsea, US
★★★★★ 5
Nice and sturdy
Color: Brown, Size: 10 in - 75 count
These are nice. Very sturdy. The size described. They don't fall apart while using. I would recommend.
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Reviewed in the United States on March 19, 2026

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