SKU: 66577026515

PC181604 | Stahlin 18.0x16.0x4.0" PolySlim Series Polycarbonate Enclosure – NEMA 4X – Low Profile Opaque Cover

$170.33 $189.26
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Description

PC181604 | Stahlin 18.0x16.0x4.0" PolySlim Series Polycarbonate Enclosure – NEMA 4X – Low Profile Opaque CoverNeed a quote or custom modification? Contact ACI Automation. Request a Quote Product Overview PolySlim Series is a low profile polycarbonate enclosure for applications where standard depth is too deep wireless access points, thin control panels, lighting controls, and remote monitoring in commercial and industrial environments. The PC181604 is a PolySlim Series Polycarbonate enclosure with a Low Profile Opaque Cover configuration, rated NEMA 1, 3R, 4,

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

Product Overview

PolySlim™ Series is a low-profile polycarbonate enclosure for applications where standard depth is too deep — wireless access points, thin control panels, lighting controls, and remote monitoring in commercial and industrial environments.

The PC181604 is a PolySlim Series Polycarbonate enclosure with a Low Profile Opaque Cover 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 PC181604
Series PolySlim Series
Material Polycarbonate
Interior Dimensions 18.0 x 16.0 x 4.0 in (interior)
Cover Type Low Profile Opaque Cover
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 Stocked — ships within 24 hours
List Price $378.53

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 PC181604 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 PC181604:

Frequently Asked Questions

What NEMA ratings does the PC181604 carry?

The PC181604 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 PC181604 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 A: Stocked — ships within 24 hours. Contact ACI Automation to confirm current stock.

What is the temperature rating?

The PC181604 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: 66577026515

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4.6 ★★★★★
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S Roth
Charlottesville, US
★★★★★ 5
They work!!
Color: Fuzzy Slate Gray, Size: Regular, Color: Fuzzy Slate Gray, Size: Regular
I bought these to replace a very old pair that I originally got at Bed Bath and Beyond like 20+ yrs ago, and the fabric was starting to fray. However, the gel pad inside (at the heel) was still working just fine. Anyway, this new set includes 2 pairs, with a gel pad inside each heel area. Results are truly amazing, I kid you not. You can use them without a moisturizer, but I like to put moisturizer on my heels, then wear these overnight, and in the morning my heels are soft, with no dry skin and NO cracks. I like the fact that these are kind of soft and fuzzy (outside), but I LOVE that they leave your toes exposed and cool (because my heels feel kind of warm from the moisturizer and gel pad). They are of good thickness, and I feel they will last a long time (of course remains to be seen). Highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
C
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cindy
West Palm Beach, US
★★★★★ 5
Perfect for cracked heals ♥️
Color: Cheetah, Size: Regular, Color: Cheetah, Size: Regular
These are thick not cheaply made, has a nice texture inside the heal area which I love. I wear them at night after I apply Aquaphor to my heels & while sleeping they are very comfortable. I slipped these guys on & my heels are healing so much faster no more cracked heels for me. 😃 I highly recommend them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
K
Verified Purchase
Korine
Port Orchard, US
★★★★★ 4
These socks have saved my heels!
Color: Fuzzy Slate Gray, Size: Regular
I really love these socks and how they help my heels to feel. I tend to get large cracks on my heels, and wearing these while I sleep during the summer has saved me a lot of pain. One thing this has disappointed me a bit has been some unraveling of the threads around the top and bottom edges. Doesn't seem to matter how I trim them, the next morning when I wake up there is another hanging thread. Maybe it was just a glitch in the finishing of the batch of socks that I received. I would give them a second chance...this certainly isn't a deal breaker.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
S
Verified Purchase
Stella Rosa
Bozeman, US
★★★★★ 5
They work!
Color: Fuzzy Blue, Size: Regular
The ZenToes Moisturizing Fuzzy Sleep Socks have been a wonderful addition to my nightly self-care routine. Infused with Vitamin E, olive oil, and jojoba seed oil, these socks are designed to soften and hydrate dry, cracked heels, offering both comfort and skincare benefits. The regular size in blue fits perfectly and adds a soothing touch to my bedtime. One of the features I appreciate most is the intense moisturization these socks provide. The infusion of Vitamin E, olive oil, and jojoba seed oil delivers deep hydration to my feet, effectively softening and healing dry, cracked heels. After just a few nights of wearing these socks, I noticed a significant improvement in the texture and smoothness of my skin. My feet feel much softer and more comfortable, which is a relief after long days on my feet. The fuzzy, cozy design of the socks is another standout feature. They are incredibly soft and comfortable, providing a warm and snug fit that’s perfect for sleep. The plush material feels luxurious against the skin, making it a pleasure to wear them overnight. This added comfort enhances the overall experience, making it easier to stick to a nightly moisturizing routine. The design is practical and thoughtful. The socks fit snugly without being too tight, ensuring they stay in place throughout the night. The regular size is perfect for my feet, and they accommodate a range of foot sizes comfortably. The blue color adds a touch of style and fun, making the socks both functional and visually appealing. The socks are easy to care for, which is a significant advantage. They can be hand-washed or machine-washed on a gentle cycle, and they retain their softness and moisturizing properties even after multiple washes. This durability ensures that the socks continue to provide effective hydration and comfort over time, making them a worthwhile investment for foot care. The moisturizing effect lasts long after I take the socks off in the morning. My feet remain hydrated and smooth throughout the day, reducing the need for additional foot creams or lotions. This lasting effect is a testament to the quality and effectiveness of the ingredients used in the socks. Overall, the ZenToes Moisturizing Fuzzy Sleep Socks have exceeded my expectations. Their combination of deep moisturization, cozy design, practical fit, and easy care makes them an essential addition to any skincare routine. The socks have significantly improved the condition of my feet, providing effective relief for dry, cracked heels and ensuring lasting softness and hydration. I highly recommend these moisturizing socks to anyone looking for a comfortable and effective solution for foot care. They have become an indispensable part of my nightly routine, ensuring that I wake up with softer, healthier feet every day.
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Reviewed in the United States on July 29, 2024
C
Verified Purchase
Char
San Leandro, US
★★★★★ 3
THESE THINGS SHED BAD!!!!!!!!!
Color: Pink Strawberries, Size: Regular
These things shed like you wouldn't believe. They're all over my furniture, my floor, my clothes. I'm finding little pink pieces of sock fluff everywhere and it's annoying. I don't think they did that until after I washed them. So if they don't shed on you right away, just wait, it'll most definitely happen. I returned because I won't where them again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026

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