Middle Atlantic SNE27D-4536-P1AB – 27" 45U 36" Digital Enclosure Add-a-Bay

Product Overview

The Middle Atlantic SNE27D-4536-P1AB is a 27-inch-wide, 45U, 36-inch-deep SNE Series Digital enclosure configured as a passive-cooling Add-a-Bay expansion unit. It ships fully configured with 70% open vented front and split rear doors, a solid top with brush cable pass-through, two pairs of adjustable cage-nut rack rails, and 100 6mm cage nuts. Designed to expand existing SNE Digital enclosure rows serving IP-based security systems, it adds 45U of rack capacity without requiring active cooling infrastructure.

Product Description

The SNE27D-4536-P1AB is part of Middle Atlantic's SNE Series Digital line, which targets high-density digital security systems built around IP cameras, network switches, servers, and access control hardware. The Add-a-Bay (P1AB) designation identifies this unit as a passive-cooling expansion cabinet intended to extend an existing SNE Digital enclosure row rather than serve as a primary standalone cabinet. At 27 inches wide and 36 inches deep, it provides a narrower, shallower footprint than the SNE24D-4248 variants while offering 45 rack units of usable space. Passive front-to-rear airflow is managed through a 70% open-area vented front door and a 70% open-area split rear door, which eliminates fan tray requirements when equipment heat loads fall within passive thermal ratings. The solid top panel includes a brush cable pass-through strip for routing power, data, and fiber between adjacent cabinets without creating open penetrations. Two pairs of adjustable cage-nut rack rails meet server manufacturer warranty specifications and accommodate mixed-vendor equipment with 6mm or 10-32 fasteners. Lever Lock compatibility allows encoders, power supplies, and access control modules to mount in unused rack units. UL/ETL listing and seismic certification satisfy code and insurance requirements for regulated installations. Four leveling feet and four casters are included; casters allow positioning under load, and feet stabilize the cabinet once in place. The SNE27D-4536-P1AB aligns with other 27-inch SNE Digital cabinets in multi-bay security system rows for flush bay-to-bay fit.

Key Features

• Passive Front-to-Rear Cooling — 70% open vented front door and 70% open split rear door; no fan trays required for standard IP security loads.
• Add-a-Bay Expansion Unit — Extends existing 27" SNE Digital enclosure rows without standalone primary cabinet reconfiguration.
• 27" Overall Width — Wider than SNE24D variants; provides additional side clearance for cable management accessories.
• 45U Rack Space — Higher density than 42U variants; fits dense IP security systems with NVRs, switches, and access control servers.
• 36" Overall Depth — Compact depth for equipment rooms where row spacing is limited.
• Cage-Nut Rails (2 Pair, Adjustable) — Universal 6mm and 10-32 compatibility; meets server warranty requirements.
• Solid Top with Brush Cable Pass-Through — Closed top panel with cable routing between adjacent bays.
• Lever Lock Compatible — Mounts encoders, power supplies, and small access control modules without adapter hardware.
• UL/ETL Listed & Seismic Certified — Meets code and insurance requirements for regulated installations.
• 4 Casters + 4 Leveling Feet Included — Mobile during installation; feet stabilize the cabinet in final position.

Typical Applications

• Expansion bays in 27" SNE Digital multi-cabinet IP security enclosure rows
• High-density NVR, managed switch, and access control server deployments in IDF closets
• Digital security system enclosures where passive thermal management is sufficient
• Facilities requiring UL/ETL listed and seismically certified enclosures
• Installations pairing with SNE27D primary cabinets in constrained equipment rooms

Technical Specifications

Frequently Asked Questions

What does "Add-a-Bay" mean for the SNE27D-4536-P1AB?

The Add-a-Bay (P1AB) designation indicates this is a passive-cooling expansion unit for an existing SNE Digital enclosure row. It is not configured as a primary standalone cabinet. It shares external dimensions with other 27-inch SNE Digital cabinets so it sits flush in a multi-bay row alignment.

How does this differ from the SNE24D-4248-P1AB?

The SNE27D-4536-P1AB is 27 inches wide and 36 inches deep with 45U of rack space. The SNE24D-4248-P1AB is 24 inches wide and 48 inches deep with 42U. Choose the SNE27D-4536-P1AB for installations with tighter row depth constraints or where the 27-inch width matches the existing enclosure row.

Does passive cooling handle full equipment loads?

Passive front-to-rear airflow through 70% open doors suits standard IP security system loads. High-density compute or storage generating significant heat may require active fan trays or supplemental room cooling.

Are cage nuts and hardware included?

Yes. One hundred 6mm cage nuts and rack screws are included, sufficient for a full cabinet load without a separate hardware order.