APC by Schneider Electric Netshelter SX 52U 750MM Wide X 1200MM Deep Enclosure - AR3357X674

APC by Schneider Electric AR3357X674 52U Freestanding Rack Enclosure

The APC by Schneider Electric AR3357X674 is a 52U freestanding rack enclosure from the Netshelter SX line — built for IT rooms, data closets, and security operations centers that need a standardized, high-capacity cabinet footprint. At 750mm wide and 1200mm deep, it accommodates full-depth network switches, patch panels, NVRs, and server equipment without requiring custom shelving or depth extensions.

Overview

The Netshelter SX series is APC by Schneider Electric's commercial rack platform, widely deployed in enterprise IT and physical security infrastructure. The AR3357X674 variant ships with side panels in black, making it suitable for open-floor deployments where aesthetics and cable containment both matter. With 52U of usable rail space, this is a full-height cabinet — plan for a ceiling clearance of approximately 2,400mm before accounting for casters or leveling feet.

Key Features

• 52U Rack Space: 52U provides enough vertical space to house a full security stack — NVRs, PoE switches, patch panels, access control servers, and UPS units — in a single cabinet without overflow. That consolidation matters when you're running structured cabling to a single IDF.
• 750mm Width: The 750mm (approximately 29.5 inches) external width is wider than a standard 19-inch EIA-310 rack frame, providing lateral clearance for side-entry cabling, cable trays, and airflow ducting without cramping adjacent equipment. Verify your floor plan allows for the wider footprint before ordering.
• 1200mm Depth: 1200mm (approximately 47 inches) of internal depth accommodates full-depth network switches and 2U/4U NVR appliances without rear-door pressure. Most 1U-2U security appliances run 400–600mm deep, so this cabinet has room to grow.
• Freestanding Design: No wall anchoring required for installation — the cabinet stands independently, simplifying placement in finished server rooms or equipment closets where wall penetration is restricted.
• Sides Included: Ships with side panels, which reduces dust ingress on open-floor deployments and improves front-to-back airflow channeling when paired with blanking panels.
• Black Finish: Standard black powder coat matches the majority of rack-mount equipment aesthetics and is the conventional finish for enterprise IT and security operations environments.

Integration & Compatibility

The AR3357X674 follows standard EIA-310 19-inch rack rail spacing, making it compatible with virtually all rack-mount security and IT equipment — including APC UPS units, PDUs, NVR appliances, PoE switches, and patch panels. If you are planning a UPS or power distribution build-out within this cabinet, APC's own Netshelter-compatible PDUs are designed to mount in the vertical channels of this enclosure series. Consult equipment depth specifications before finalizing rack layout — 1200mm depth is generous but not unlimited when rear cable management accessories are added.

Frequently Asked Questions

Q: What is the internal usable rack space of the AR3357X674?

A: The AR3357X674 provides 52U of usable rack space, sufficient for a full security or IT equipment stack in a single cabinet.

Q: Does the AR3357X674 include side panels?

A: Yes, this enclosure ships with side panels included, as indicated by the product designation. The black finish matches standard enterprise rack equipment.

Q: What are the external dimensions of the AR3357X674?

A: The enclosure is 750mm wide and 1200mm deep. Overall height for a 52U cabinet is approximately 2,400mm; confirm exact installed height including any casters or leveling feet with APC documentation before finalizing room layout.

Q: Is the AR3357X674 compatible with standard 19-inch rack equipment?

A: Yes. The Netshelter SX series uses standard EIA-310 19-inch rack rail spacing, compatible with virtually all rack-mount IT and security equipment.

Q: Can the AR3357X674 be used in a security operations center or NVR room?

A: Yes. The 52U capacity and 1200mm depth make it well-suited for housing NVR appliances, PoE switches, patch panels, and UPS units in a consolidated security infrastructure cabinet.

Karl Wilson

When I spec a rack for a security operations room or IDF closet, the first question is always depth — and the AR3357X674's 1200mm internal depth is the right call for any build mixing full-depth switches with 2U–4U NVR appliances. That extra depth is what separates a clean install from a cable-management nightmare six months later.

Technical Highlights:

• 52U Capacity: At 52U, this cabinet handles a complete physical security stack — NVRs, PoE switch stack, patch panels, access control server, and a rackmount UPS — without requiring a second cabinet. That matters for single-IDF security closets where floor space is finite.
• 750mm Width: The 750mm external footprint gives you lateral room for vertical cable managers or side-entry conduit without butting up against adjacent cabinets. Standard 600mm cabinets don't give you that margin.
• 1200mm Depth: Full-depth network gear (think 48-port managed PoE switches at 440–500mm) fits cleanly, with rear cable slack space still available. You won't be bending patch cords at 90 degrees to close the rear door.

Deployment Considerations:

• At 52U and 1200mm deep, this cabinet is heavy when loaded — confirm your floor load rating before positioning, especially in older buildings or raised-floor environments with tile weight limits.
• Side panels are included, but blanking panels are not confirmed in the evidence — order a full blanking panel kit separately to maintain front-to-back airflow integrity across all empty rack units.

This enclosure is a practical fit for enterprise security operations centers and larger IDF closets where the equipment mix spans NVRs, managed PoE switches, and rackmount UPS — environments where running out of rack space or depth two years into a deployment is a real cost.