B-LINE NEMA 4X Steel Back Pane...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$401.86
$349.16

B-LINE NEMA 4X Steel Back Panel 21" x 16.875" x 4.87" Indoor/Outdoor Fiberglass Enclosure Accessory

(No reviews yet) Write a Review

Model: AW2420P
Selected Model is

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

$401.86
$349.16
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks

B-LINE NEMA 4X Steel Back Panel 21" x 16.875" x 4.87" Indoor/Outdoor Fiberglass Enclosure Accessory

Professional NEMA 4X Rated Back Panel for Versatile Indoor and Outdoor Applications

The B-LINE NEMA 4X Steel Back Panel delivers reliable mounting and protection for electrical components in both indoor and outdoor environments. This 12 gauge steel back panel features white powder coated finish and galvanized construction, measuring 21" x 16.875" x 4.87" to provide secure component mounting within fiberglass enclosures. Engineered for professional electrical installations requiring NEMA 4X protection standards.

Professional Features & Benefits

  • NEMA 4X Protection Rating: Ensures reliable performance in harsh indoor and outdoor environments with superior corrosion resistance and weatherproofing.
  • 12 Gauge Steel Construction: Provides robust structural integrity and secure mounting platform for electrical components and equipment.
  • White Powder Coated Finish: Delivers professional appearance with enhanced durability and corrosion protection for long-term reliability.
  • Galvanized Back Panel: Offers additional corrosion resistance and extended service life in demanding environmental conditions.
  • Precision Dimensions 21" x 16.875" x 4.87": Ensures proper fit and optimal space utilization within compatible fiberglass enclosure systems.
  • Indoor/Outdoor Versatility: Supports flexible installation options across diverse professional electrical applications and environments.

Technical Specifications

  • Application: Intended for indoor or outdoor use
  • Certifications: NEMA
  • Degree Of Protection: NEMA 4X
  • Department: Electrical
  • Finish Color: White powder coated
  • Material: Steel
  • Product Category: Fiberglass accessories
  • Product Height: 21 in
  • Product Length Depth: 4.87 in
  • Product Weight: 11.194 lb
  • Product Width: 16.875 in
  • Special Features: Galvanized back panel

Professional Applications

  • Industrial Control Panels and Electrical Enclosures
  • Commercial Building Electrical Systems
  • Outdoor Electrical Equipment Installations
  • Manufacturing Facility Control Systems
  • Municipal and Utility Infrastructure
  • Marine and Coastal Environmental Applications
  • Food Processing and Wash-Down Environments

Why Choose B-LINE Quality?

B-LINE delivers proven reliability through NEMA certified protection standards and robust 12 gauge steel construction with galvanized back panel design. The white powder coated finish and NEMA 4X rating ensure dependable performance across demanding indoor and outdoor electrical applications, backed by professional-grade materials and precision manufacturing standards.

Manufacturer Resources

Product Specs

Application:
Intended for indoor or outdoor use
Certifications:
NEMA
Degree Of Protection:
NEMA 4X
Finish Color:
White powder coated
Product Category:
Fiberglass accessories
Product Height:
21 in
Product Length Depth:
4.87 in
Product Weight:
11.194 lb
Product Width:
16.875 in
Special Features:
Galvanized back panel
Department:
Electrical
Product Material:
Steel

B-LINE AW2420P – Frequently Asked Questions

1) What size back panel is the B-Line AW2420P, and will it fit my enclosure?
The AW2420P is a steel back panel measuring 21 x 16.875 x 4.87 inches. It is sized for B-Line fiberglass enclosures, so match the panel to the enclosure's interior mounting dimensions before ordering. The three numbers are published as height 21 inches, width 16.875 inches, and length/depth 4.87 inches.
2) Can a steel back panel be used in an outdoor or wash-down electrical enclosure?
Yes. The AW2420P back panel carries a NEMA 4X degree of protection and is intended for indoor or outdoor use. It is a galvanized panel with a white powder coated finish, which is what makes it suitable for wet, corrosive, and coastal locations rather than dry indoor gear only. The enclosure itself still has to be the rated part of the assembly; the panel mounts inside it.
3) Is the AW2420P a complete enclosure or just the mounting panel?
Just the panel. The AW2420P is an accessory back panel that goes inside a fiberglass enclosure to give you a flat steel surface for mounting breakers, relays, terminal blocks, and other components. You buy it in addition to the enclosure, not instead of one.
4) Can I drill and tap this back panel for my own component layout?
Yes. The AW2420P is 12 gauge steel, which drills and taps cleanly for machine screws and holds standard DIN rail and component feet. After you cut it, touch up bare edges to keep the corrosion protection intact, since the panel relies on its galvanized base and powder coat for that.
5) What does the NEMA 4X rating on an enclosure back panel actually mean for a food plant or coastal site?
NEMA 4X covers protection against windblown dust, rain, splashing water, and hose-directed water, plus corrosion resistance, which is why it is the rating specified for food processing wash-down areas and marine or coastal installs. The AW2420P is rated NEMA 4X and listed for indoor or outdoor use, with a galvanized panel under the white powder coat for the corrosion side of that.
6) How heavy is the B-Line AW2420P panel for a one-person install?
It weighs 11.194 lb. That is a one-hand-awkward, two-hand-easy panel, so a single electrician can set it on the enclosure studs without a lift, though it is worth having the mounting hardware started before you bring the panel up.
How fast can I get the B-LINE AW2420P 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 B-LINE AW2420P come with a warranty?
Absolutely. The B-LINE AW2420P 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 B-LINE AW2420P?
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 B-LINE AW2420P from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.