APC by Schneider Electric Netshelter SX 45U 750MM Wide Perforated Split Doors Black - AR7155

APC by Schneider Electric AR7155 NetShelter SX 45U 750mm Perforated Split Door

Overview

The AR7155 is a replacement or supplemental perforated split door set designed specifically for APC by Schneider Electric NetShelter SX 45U enclosures with 750mm-wide frames. At 80.5 inches tall and finished in black, these doors deliver the ventilation performance and physical access control that 24/7 data center and network room enclosures demand — without the guesswork of sourcing a third-party fit. If your existing NetShelter SX door is damaged, missing, or you are expanding your rack footprint, the AR7155 is the direct factory replacement that keeps your enclosure spec-compliant.

Key Features

• Perforated Split Door Design: The split configuration allows you to open one panel at a time, reducing swing clearance requirements in tight rows — a real advantage in high-density network enclosures where aisle width is at a premium.
• 45U Height, 80.5 Inches (2044mm): Matches the full usable height of standard NetShelter SX 45U frames. No trimming, no shimming — the door seats flush with factory tolerances, preserving your enclosure's structural integrity and airflow sealing.
• 750mm Frame Width: Sized for the 750mm-wide NetShelter SX family specifically. Confirm your enclosure's stated width before ordering — the 600mm variant is a different SKU. Ordering the wrong width door is the single most common mistake on rack door replacements.
• Perforated Panel for Passive Airflow: The perforated face allows front-to-rear airflow without requiring the door to be left open, supporting hot-aisle/cold-aisle containment strategies while maintaining physical security and dust management.
• Keyed Access with Included Hardware: Ships with a door handle, mounting hardware, installation guide, and keys — everything needed for a self-contained installation without sourcing supplemental fasteners or tools.
• Black Finish: Matches the standard NetShelter SX black powder-coat finish. Relevant when replacing a single door in a multi-rack row where visual consistency matters to facilities or compliance teams.
• 30.78 lb (13.96 kg) Door Weight: Factor this into your installation plan. A two-person install is advisable when hanging a door this size to avoid hinge stress during alignment, especially on an enclosure already populated with equipment.

Integration & Compatibility

The AR7155 is engineered for the NetShelter SX 45U 750mm-wide enclosure line. It is not a universal fit — APC enclosures use model-specific door attachment points, and this door will not seat correctly on 600mm-wide frames or non-SX NetShelter families. Cross-reference your enclosure model number against APC's compatibility matrix before purchasing. For rack accessory planning, also verify whether your enclosure already has a rear door installed — the AR7155 covers the front door position in the standard SX configuration.

What's in the Box

• 1x Perforated split door assembly (AR7155)
• 1x Door handle
• 1x Door mounting hardware set
• 1x Installation guide
• 1x Key set

Frequently Asked Questions

Q: Is the AR7155 compatible with NetShelter SX 600mm-wide enclosures?

A: No. The AR7155 is sized for 750mm-wide NetShelter SX frames only. APC produces a separate SKU for the 600mm frame width. Verify your enclosure's width specification before ordering.

Q: Does the AR7155 include keys?

A: Yes. The package includes a door handle, mounting hardware, installation guide, and keys as confirmed by APC's provided equipment list.

Q: What is the door height of the AR7155?

A: The door measures 80.5 inches (2044mm) in height, matching the full 45U NetShelter SX frame height.

Q: How heavy is the AR7155 door assembly?

A: The door weighs 30.78 lb (13.96 kg). A two-person installation is advisable to avoid hinge stress during mounting.

Q: Is the AR7155 rack-mountable?

A: No. The AR7155 is a replacement enclosure door, not a rack-mountable device. It mounts to the NetShelter SX enclosure frame using the included door mounting hardware.

Q: Does the perforated door support hot-aisle/cold-aisle containment?

A: Yes. The perforated panel allows passive front-to-rear airflow while keeping the door closed, which is compatible with hot-aisle/cold-aisle containment strategies.

Ted Perry

The AR7155 is the kind of part that only matters when you need it — and when you do, getting the right fit the first time is critical. At 80.5 inches and 30.78 lb, this is not a door you want to return because you ordered the 600mm variant by mistake. Confirm your NetShelter SX frame width before the order ships.

Technical Highlights:

• Split Door Configuration: Two independently opening panels reduce the swing arc needed in front of the rack — in rows with less than 36 inches of aisle clearance, this makes a measurable difference in access without disrupting adjacent equipment.
• Perforated Face: Passive airflow through the closed door means you are not choosing between ventilation and physical security. This is the right door for any deployment running positive-pressure cold-aisle containment.
• Complete Hardware Kit: Handle, mounting hardware, keys, and installation guide are all in the box. No sourcing supplemental fasteners or calling facilities for a key blank — the AR7155 ships ready to hang.

Deployment Considerations:

• At 30.78 lb, plan for a two-person installation. Attempting solo hinge alignment on a loaded 45U rack risks racking the frame or stripping the hinge mount points.
• The AR7155 is width-specific to 750mm NetShelter SX frames — it will not fit the 600mm SX family or any other NetShelter product line. This is the most common ordering error on this SKU.

The AR7155 is the correct choice for data center teams maintaining enclosure standardization across a NetShelter SX 750mm row — replacement after physical damage, door swap for a used enclosure being brought into service, or completing a partial rack build that arrived without a front door.