Location: Engineering Lab Model #: UBH2R1121BCH Capacity: 2-Gang (supports two separate meters in one enclosure) Rating: 100 AMP Continuous per position/600 Volts AC Service: Designed for overhead or underground feed (highly versatile)

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Location: Engineering Lab Model #: 5266N Industrial Grade Toughness: Encased in a high-impact, chemical-resistant nylon housing. It’s designed to survive drops, impacts, and harsh workplace chemicals without cracking. Superior Grip: The "Safety Grip" design features a ribbed housing that makes it easy to plug and unplug, even when wearing heavy work gloves. Fast & Secure Wiring: Equipped with a clear terminal cover and individual wire pockets. This allows for quick visual inspection to ensure your hot, neutral, and ground wires are perfectly seated. Automatic Centering: The unique cord-grip design automatically centers the cable, reducing strain on the internal terminals and preventing wire pull-out.

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Location: Engineering Lab  Precision Fit: Specifically engineered for 4-inch octagonal boxes. It seats perfectly on the rim, ensuring there are no exposed gaps that could lead to code violations or dust accumulation. Exposed Work Ready: Designed with a smooth, "exposed work" finish. It’s tough enough for warehouses and mechanical rooms, but clean enough for a modern industrial-style office. Rapid Installation: Features the classic keyhole mounting slots. You don't have to remove the box screws entirely—just loosen them, slide the cover on, and tighten. It saves minutes on every ladder climb. Durable Construction: Made from high-strength pre-galvanized steel. It won't rust in humid environments and provides a solid fire barrier for your wire splices.

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Location: Engineering Lab Model #: 54C6 Octagonal Versatility: Designed specifically for 4" octagonal boxes, fitting perfectly over your light-rated boxes or round junction points without overhang or gaps. Built-in 1/2" Knockout: The "C6" designation means you get a pre-punched 1/2" knockout right in the center. It’s perfect for dropping a pendant, adding a pull-string, or transitioning to another run of EMT without drilling. Contractor-Grade Steel: Like the rest of the Steel City line, it’s made from pre-galvanized steel, providing the grounding continuity and durability that plastic alternatives just can't match. Flush Profile: The flat design keeps your installation tight to the ceiling or wall, maintaining a clean look in exposed-work environments.

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Location: Engineering Lab Model #: 54C1 The "Universal" Circle: Specifically designed for 4" octagonal or round boxes. It’s the essential "cap" for ceiling boxes where a fixture isn't being installed yet. Safety & Compliance: Keeps live wires fully enclosed and protects the circuit from dust and moisture. Like its square cousins, it is UL Listed and code-compliant. Sleek, Low Profile: Because it sits perfectly flat against the box rim, it provides a clean, unobtrusive look that won't interfere with future drywall or ceiling finishes. Steel City Reliability: You get the same heavy-duty pre-galvanized steel construction that won't warp or strip when you're tightening it down with an impact driver.

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Location: Engineering Lab Model #: 8752 The "Keyhole" Advantage: The mounting holes are designed with a keyhole shape, allowing you to install the cover without fully removing the box screws. Just loosen, slide, and tighten. It’s a massive time-saver when you’re on a ladder. Crush-Proof Strength: Made from high-strength, galvanized steel, it provides a rigid barrier that won't bow or flex, ensuring a tight seal against dust and moisture. Flush & Finished: The completely flat profile is ideal for surface-mount applications where you need a low-profile, "barely-there" look that won't snag on equipment or inventory. Precision Engineering: RACO’s manufacturing tolerances are tight—no sharp burrs or misaligned edges. It fits the box perfectly the first time, every time.

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Location: Engineering Lab Model #: 52C6 Instant Versatility: Perfect for mounting a single conduit run, a flex connector, or even a basic lighting fixture directly to a 4-inch square box. Easy Access: The knockout is designed to stay secure until you need it, but pops out clean when it's time to work—no jagged edges or fighting with the steel. Industrial Strength: Like the rest of the Steel City line, it’s made from pre-galvanized steel for maximum durability and rust protection. Code Compliance: Using a factory-stamped KO cover is much safer (and looks much better) than drilling your own holes in a blank plate. It’s UL Listed and ready for inspection.

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Location: Engineering Lab Model #: 52C1 The Perfect Fit: Engineered specifically for standard 4-inch square (1900) boxes. It aligns perfectly every time—no struggling with off-center screw holes. Rugged Durability: Made from premium pre-galvanized steel, ensuring long-term corrosion resistance and structural integrity in both commercial and industrial environments. Clean Professionalism: The flat, blank design provides a flush, low-profile finish that looks organized and intentional to inspectors and clients alike. Safety First: It’s UL Listed, providing the fire and debris protection required by the NEC for all unused openings in your electrical system.

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Location: Engineering Lab Model #: 72C1 Built for 4-11/16" Boxes: Designed specifically for "large square" boxes, providing that extra room for high-voltage wire management or deep-fill applications. Heavy-Duty Protection: Crafted from high-quality, 1/16" thick galvanized steel. It’s built to withstand the rigors of an active job site without bending or corroding. The "Flat Blank" Advantage: Perfect for junction boxes where no devices are being mounted. It creates a sleek, flush finish that keeps dust, debris, and fingers out of your connections. UL Listed & Code Compliant: Don't fail an inspection over a generic plate. This is fully certified for safety and performance.

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Location: Engineering lab Model #: 83492 The "Oil Burner" Specialist: Clearly marked for oil utility applications, this plate ensures that emergency shut-offs or burner controls are easily identifiable and code-compliant. 4" Raised Design: The raised profile provides that crucial bit of extra "breathing room" for internal wiring, making it much easier to tuck in your connections without pinching wires. Heavy-Duty Construction: Built from zinc-plated steel, it’s designed to resist the corrosion and grime typical of basement mechanical rooms and furnace closets. High-Visibility Safety: It serves as a visual cue for technicians and inspectors, ensuring that critical heating controls are never mistaken for standard light switches. Contractor-Friendly Install: Precision-stamped screw holes mean you aren't fighting the box to get a flush, level fit.

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Location: Engineering Lab Model #: 41024 Tailored for Gas Burners: Unlike standard electrical plates, this "Utility" cover is specifically designed to provide a secure, professional seal for burner applications. Superior Durability: Stamped from heavy-duty steel and finished with a rugged, silk-thin powder coating to prevent rust and withstand high-traffic utility areas. Sized to Fit: Specifically built for 4" octagonal or round boxes, ensuring a precise, gap-free fit that keeps dust and debris out of your connections. The "Emergency" Standard: Its distinct layout is the industry go-to for mounting emergency switches or protecting critical burner wiring. Made in the USA: Mulberry is legendary for quality control—you won't have to deal with warped metal or misaligned screw holes.

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Location: Engineering Lab Model #: 5402-LR Universal Compatibility: Designed specifically for 4-inch octagonal boxes, making it the go-to for mounting light fixtures or simply closing out a circuit. Built to Last: Made from high-quality pre-galvanized steel, it offers excellent corrosion resistance for long-term durability in both residential and commercial settings. Center Knockout (1/2"): Features a perfectly centered knockout, giving you the flexibility to run conduit or pull wire through the face without needing a different model. UL Safety Certified: Fully compliant with safety standards, ensuring you pass code requirements the first time. The "Pro" Finish: Clean edges and a flat profile ensure a flush fit against the ceiling or wall surface.

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