Product Overview
The AA-EB-4R is a legacy, surface-mounted enclosure built specifically to protect double-gang duplex electrical outlets from tampering, theft, and environmental damage. Crafted from heavy-duty 12-gauge stainless steel and equipped with a padlock-ready shroud, this vandal-resistant outlet box is ideal for correctional facilities, transit platforms, parks, schools, and public utility installations. The removable backplate, spray-deflective design, and dual conduit access (bottom and rear) ensure flexible installation while maintaining total enclosure security.
Note 1: Item replaced with the AA-EB-2G-PL.
Note 2: Padlock is not included.
Note 3: Receptacle outlet is not included with the housing. Most boxes on the market should fit, but for a known receptacle box that was tested to fit, click here.
UL Certification & Code Compliance
Our heavy-duty enclosures are engineered strictly as secondary architectural physical security hardware. The AA-EB-4R does not house electrical wiring; it is designed to be mounted directly to the structural wall over your existing, fully compliant, UL-listed electrical box and its associated UL-listed cover. Because our product operates entirely outside the electrical system, it does not require an independent UL electrical listing. To comply with local Authority Having Jurisdiction (AHJ) bonding requirements (such as NEC 250), the stainless steel enclosure can be readily bonded to the equipment grounding conductor by your installing electrician.
Key Features
- Vandal Resistant Build: 12-gauge stainless steel body with TIG welds and smooth, de-burred edges for high-impact resistance and safety.
- Padlock Shroud: Integrated welded shroud protects the locking mechanism from bolt cutters and prying tools.
- Spray & Drip Deflective: Engineered to prevent moisture, spray, or hose down intrusion.
- Removable Backplate: Simplifies conduit alignment and device installation while maintaining tamper-proof protection.
- Dual Conduit Entry: Compatible with both bottom and rear conduit access — supports ½" or ¾" conduit up to 0.8" OD.
- LEED Compliant: Constructed using recyclable stainless steel under strict American manufacturing standards.
- Made in the USA: Expertly crafted for long-lasting durability and a professional finish.
Material & Warranty Options
Available in 12-gauge 304L stainless steel for general use or 12-gauge 316L for salt-exposed or marine environments. The Satin #4 brushed finish resists corrosion and supports long-term durability even in harsh conditions. When properly installed and locked, this unit is fully backed by our Anti-Vandalism Warranty (protects against prying by hand/body and heavy impact). For complete coverage details, please review our Warranty page.
Specifications & Compatibility
- Exterior Dimensions: 9 ⅞” W x 7 ½” H x 4 ¾” D
- Interior Dimensions: 6 ¾” W x 7” H x 4 ⅜” D
- Rear Opening: 5 ¼” W x 5 ⅝” H
- Weight: 10 lbs
- Compatibility: Designed to fit most standard double-gang duplex receptacle boxes, including the Greenfield B232BRS Box and Greenfield C2GFI2PS Weatherproof Cover.
- Models: AA-EB-4R-304L-12g, AA-EB-4R-316L-12g
Installation Guidance
Use 3/8” stainless steel anchors (not included) for surface mounting. Back bracing of at least ¾” is recommended. For partitions or thin walls, T-nuts or other secure fasteners should be used. When possible, back-to-back installations should be through-bolted for maximum structural integrity.
Specification Guide
Security Box shall be constructed with 12 gauge 304L or 12 gauge 316L Stainless Steel joined /w TIG welds and edges de-burred. Security Box shall not be cross-metal contaminated during manufacturing construction. Security Box shall provide protective cover against drip and spray. Protective shroud adds security for padlock. Security Box shall have 3⁄8” mounting holes. Security Box shall accommodate standard electrical outlet styles. 12 Gauge models shall include an Anti-Vandalism Warranty when properly installed and locked while in service. 316L SS shall be used for US Navy maritime use or if exposure to salt water is prevalent.
Product Demonstration
Note! This video is a demonstration of a similar model within our electrical enclosure line. It is provided to give you an idea of the heavy-duty features, material thickness, and construction techniques utilized in this product line.
- Material Quality [00:00:22]: A magnet test demonstrating the use of high-quality, non-magnetic stainless steel.
- Extreme Durability [00:02:39]: Stick around to the end of the video for a demonstration of a baseball bat impact test on our 12-gauge stainless steel material!
Warranty Guide, Care Instructions & Spec Sheet - See Spec Sheet Tab Above

Most of our products are Made to Order. When adding your item to the shopping cart there will be a "stock type" option indicating what is available for this particular item (see screenshot below). If an item is Stocked, a stocked option will appear, otherwise, only the "Made to Order" option will be visible. For our current estimated Production Lead times and related information see our Production Lead Times page for details.
Example Stock Type Selection Screenshot:

