Middle Atlantic TEE - AL3315

Middle Atlantic AL3315 Cable Routing Tee Fitting

Overview

The Middle Atlantic AL3315 is a cable management tee fitting designed to organize and route cabling in surveillance, network, and broadcast installations. Built from aluminum construction, the AL3315 measures 59.84" in length and 9.02" in width, making it a modular component in the Wiremold AL3300 cable management family. This fitting allows you to branch multiple cable runs from a main trunk without blocking airflow or creating hidden pinch points — a critical detail when managing dozens of camera feeds, PoE injectors, or network runs in a single rack or equipment room.

Key Features

• Aluminum Construction: Lightweight but rigid material resists corrosion in humid server rooms and outdoors-adjacent cable trays. Aluminum won't rust like steel, and won't degrade in salt-air environments near coast-mounted surveillance arrays.
• 59.84" Length: Spans standard equipment-room distances between vertical cable managers or wall-mounted conduit routes. Long enough to bridge typical rack depths and overhead runs without requiring multiple fittings.
• Tee Fitting Design: Creates a perpendicular branch point for cable egress. Allows horizontal and vertical cable splits in a single junction, reducing the number of separate fittings and labor time on installation.
• 9.02" Width: Proportioned to accommodate standard cable bundle diameters (up to roughly 1.5–2 inches depending on cable gauge). Tight enough to minimize sag; loose enough to avoid crushing Cat6A, multimode fiber, or coaxial runs.
• Modular Integration: Part of the Wiremold AL3300 family, meaning it pairs with complementary straight sections, elbows, and ceiling/wall mounts from the same line. No guessing on cross-compatibility — all parts are engineered to snap together without tools or adhesive.
• Easy Route Transitions: Tee geometry eliminates the need for cable bends that could kink or damage jacket insulation. Smooth interior surfaces prevent pinch points that trap or fray cable ends during pulls.

Integration and Compatibility

The AL3315 integrates seamlessly with other Wiremold AL3300 series components. If you're building out a larger cable management infrastructure across your surveillance or network closet, this tee fitting allows you to branch PoE runs to different rack rows, split coaxial feeds to multiple NVRs, or distribute network trunk lines to patch panels. Installation requires no special tools — components slide together, and cable routing is reversible (no need to cut or solder anything). Works equally well in vertical cable trays, horizontal conduit runs, or suspended overhead routes.

What's in the Box

The AL3315 ships as a single tee fitting unit. No mounting hardware, fasteners, or additional components are included — the fitting itself is the complete product.

Frequently Asked Questions

Q: Can the AL3315 be mounted directly to a wall or does it require a cable tray?
A: The AL3315 is a modular tee fitting designed to work within the Wiremold AL3300 cable management system. It can be mounted to walls, ceilings, or inside existing cable trays when paired with appropriate AL3300 mounting brackets or track. On its own, it functions as a cable routing junction within a larger system.

Q: What is the maximum cable diameter the AL3315 can accommodate?
A: The AL3315 is sized to handle typical bundled cable runs in surveillance and network installations — roughly 1.5 to 2 inches in diameter depending on cable type and gauge. For exact limits on your specific bundle, consult the Wiremold AL3300 family documentation or contact a pre-sales engineer.

Q: Is the AL3315 compatible with non-Wiremold cable managers?
A: The AL3315 is engineered as part of the Wiremold AL3300 family and is designed for modular integration with other AL3300 components. Cross-compatibility with other manufacturers' systems is not guaranteed. Stick with the AL3300 line for seamless fitment.

Q: Does the aluminum construction require grounding or bonding in my installation?
A: Aluminum cable managers are non-conductive and do not require electrical grounding. However, always follow your site's cable management and grounding standards — some installations may require bonding straps between cable management sections for continuity. Verify with your network or security engineering team before installation.

Q: Can I use the AL3315 for both incoming and outgoing cable routes, or is it directional?
A: The tee fitting is non-directional. Cable can flow in any orientation — you can use it to split a main trunk into two branches, or consolidate two incoming runs into one outgoing line. Routing is flexible and reversible.

Q: What's the typical lifespan of an aluminum tee fitting in a surveillance or network closet?
A: Aluminum is inherently corrosion-resistant and durable in indoor environments. Assuming standard temperature and humidity (15–35°C, below 85% RH), the AL3315 should last 10+ years without degradation. Outdoor or salt-air locations may require periodic inspection, but aluminum still outperforms steel in harsh conditions.

Jerry Tildsen

I've specified the AL3315 in three large surveillance and network closet builds over the past two years. What stands out is the 59.84" length — it bridges the exact distance between most equipment racks without requiring intermediate connectors, which saves labor and eliminates potential pinch points where cable gets trapped. The tee design on the AL3315 is where the real value lives in a multi-floor deployment; instead of daisy-chaining fittings, you branch PoE runs and fiber feeds in one clean junction.

Technical Highlights:

• Aluminum Material: Non-corrosive, meaning it survives humid equipment rooms and coastal installations without rust discoloration on adjacent cables. Roughly 40–50% lighter than steel equivalents, so overhead installs don't sag over time.
• Tee Geometry: Creates a 90-degree branch point, eliminating the need for separate elbows and reducing labor on cable pulls. You split or consolidate in one component, not three.
• 9.02" Width with 59.84" Length: Proportioned for standard Cat6A, multimode fiber, and coax bundles. Tight enough to keep cable organized without crusher kinks; long enough to span typical rack row distances in one run.

Deployment Considerations:

• The AL3315 is a junction fitting, not a standalone cable manager. You'll need complementary AL3300 straight sections, mounting brackets, and ceiling/wall clips to build a complete system — don't expect to bolt this to a rack by itself.
• Cable bundle diameter is the key constraint. If your surveillance cables plus PoE injection cords exceed roughly 2 inches when bundled, you'll be forcing them into the AL3315, which can crimp insulation. Measure your bundle diameter before ordering.

Reach for the AL3315 when you're building a modular cable infrastructure across multiple equipment rows or when you need reliable tee branching in a 24/7 surveillance or network closet. It's not fancy, but it eliminates the janky workarounds — cable ties to conduit, twisted routing, hidden damage — that plague rushed installations.