APC by Schneider Electric Rack AIR Removal Unit SX 100-240V 50/60HZ for Netshelter 750MM - ACF402

APC by Schneider Electric ACF402 Rack Air Removal Unit

Overview

The ACF402 is APC by Schneider Electric's Rack Air Removal Unit for NetShelter 750mm-wide enclosures — a purpose-built active exhaust unit designed to address a specific and common data center failure mode: densely packed equipment overheating because hot air cannot escape the enclosure fast enough. If you're running high-density IT loads in a rack enclosure, passive airflow often isn't enough. The ACF402 actively pulls hot exhaust air out of the top of the rack before it recirculates back into equipment intakes, which is the primary cause of thermal-related downtime in tightly loaded cabinets. It accepts universal 100–240V input at 50/60Hz, so it integrates into both North American and international facilities without voltage conversion hardware.

Key Features

• Active Hot-Air Extraction: Rather than relying on server fans alone to move air through the cabinet, the ACF402 mechanically exhausts hot air from the enclosure. In densely packed racks where equipment is generating significant heat loads, this is the difference between a stable thermal environment and cascading throttling or shutdown events — the real cost of inadequate airflow management isn't the hardware, it's the unplanned downtime.
• Universal Voltage Input (100–240V, 50/60Hz): Single-unit procurement covers both 120V North American deployments and 230V European or international installations. No need to stock separate SKUs for multi-region facilities or global equipment refresh programs.
• NetShelter 750mm Enclosure Compatibility: Engineered specifically for APC's NetShelter 750mm-wide cabinet line. This is not a generic rack accessory — the mechanical fit, airflow path, and mounting interface are matched to that enclosure family. Using it with a different cabinet width or brand will likely result in gaps, reduced effectiveness, or incompatible mounting.
• Color: Black: Matches the standard NetShelter enclosure finish, maintaining a consistent appearance in raised-floor data centers and co-location environments where cabinet aesthetics and airflow containment strategies are coordinated.
• Targets a Specific Failure Mode: The ACF402 addresses exactly what APC documents as the core problem — densely packed enclosures causing IT equipment to overheat and resulting in downtime. This is a precise solution to a well-understood thermal problem, not a general-purpose cooling add-on.
• 29-Inch Form Factor: The unit's 29-inch dimension fits within standard rack depth constraints. Verify your NetShelter cabinet's internal available depth before ordering, particularly if the rack is already densely cabled at the top.

Integration and Compatibility

The ACF402 is designed for use with APC by Schneider Electric NetShelter 750mm enclosures. If you are running a mixed cabinet environment or a different NetShelter width (600mm or 800mm variants), this unit is not the correct match — verify your enclosure's nominal width before ordering. For facilities already running APC's InRow cooling or perimeter CRAC/CRAH units, the ACF402 complements rather than replaces room-level cooling by handling the localized hot-spot problem at the rack level. It does not require integration with APC's EcoStruxure or DCIM software to operate, though coordinated monitoring of rack-level temperatures alongside room cooling is standard practice in well-managed data center cooling deployments. The universal voltage input means it can be powered from standard PDUs in either 120V or 230V configurations — no dedicated circuit requirement beyond what a standard 1U or 2U accessory would draw. Pair with a rack-mounted PDU for clean power integration within the enclosure.

Frequently Asked Questions

Q: What enclosure is the ACF402 compatible with?

A: The ACF402 is designed specifically for APC NetShelter 750mm-wide enclosures. It is not a universal fit for all rack widths — verify your cabinet's nominal width is 750mm before ordering.

Q: What voltage does the ACF402 require?

A: The ACF402 accepts 100–240V input at 50/60Hz, covering both North American (120V) and international (230V) power environments without requiring a transformer or separate regional SKU.

Q: Does the ACF402 replace room-level cooling in a data center?

A: No. The ACF402 is a rack-level active air removal unit that addresses localized hot-air buildup inside a dense enclosure. It works alongside room-level CRAC, CRAH, or InRow cooling — it does not replace it.

Q: Why would I need an air removal unit if my servers already have fans?

A: In high-density enclosures, server fans move air through the chassis, but hot exhaust can stagnate at the top of the cabinet if there's no active extraction path. The ACF402 mechanically removes that hot air before it recirculates into equipment intakes, which is the primary mechanism behind thermal-related equipment failures and throttling in packed racks.

Q: What is the ECCN classification for the ACF402?

A: The ACF402 is classified EAR99, meaning it is subject to Export Administration Regulations but does not require a specific license for most standard export destinations.

Eden Phillips

The ACF402 solves a problem that shows up consistently in high-density rack builds: hot air pooling at the top of a NetShelter 750mm enclosure when you've filled the rack with compute that's generating more heat than passive convection can handle. The 100–240V universal input is a practical detail — it means the same unit works in a domestic 120V raised-floor environment or a 230V international colocation cage without any procurement variance.

Technical Highlights:

• Universal Voltage (100–240V, 50/60Hz): Single SKU covers North American and international deployments — no region-specific ordering or transformer overhead for multi-site facilities.
• Active Air Extraction: Mechanically exhausts hot air from the top of the enclosure rather than relying on equipment fans alone — directly addresses the overheating-from-recirculation failure mode APC identifies as the primary dense-rack downtime cause.
• NetShelter 750mm Fit: Mechanical and airflow interface matched specifically to the 750mm NetShelter cabinet line — not a generic accessory, which means the airflow path is designed rather than approximate.

Deployment Considerations:

• Confirm your NetShelter cabinet is the 750mm nominal width before ordering — the 600mm and 800mm variants require different units, and an incorrect fit defeats the airflow design entirely.
• The ACF402 is a rack-level supplement to room cooling, not a replacement. If your room-level CRAC or perimeter cooling is undersized, adding an air removal unit buys time but does not fix the underlying capacity problem.

The ACF402 is the right call for high-density NetShelter 750mm builds — particularly colocation deployments or on-premises server rooms where blade chassis, dense 1U compute, or high-wattage GPU nodes are packed into a single enclosure and room cooling alone isn't keeping rack exhaust temperatures in check.