APC by Schneider Electric ACDC2402 Door Header for 42U VX / 45U SX Rack Enclosures
Overview
The APC by Schneider Electric ACDC2402 is a door header designed specifically for APC 42U VX series and 45U SX series rack enclosures. If you are replacing a damaged header, completing a partial enclosure build, or sourcing a missing component for an existing rack deployment, this is the factory-matched part for those two enclosure families — not a universal fit, not a third-party substitute.
Door headers on rack enclosures serve a structural and aesthetic function: they cap the top of the door frame, maintain the enclosure's IP/IK integrity where applicable, and keep the door assembly properly aligned. Using the correct OEM header for the VX and SX frame generations ensures the door operates as designed and maintains the enclosure's original certification profile. A mismatched header — even one that physically fits — can compromise door sealing and frame rigidity over time in high-density or high-vibration environments.
Compatibility
The ACDC2402 is confirmed compatible with the following APC rack enclosure families:
- 42U NetShelter VX Series: The VX line is APC's workhorse open-frame-style enclosed rack for data center and IT closet deployments. This header is the correct replacement or spare for that U-height in the VX generation.
- 45U NetShelter SX Series: The SX series is APC's deeper, higher-airflow enclosed rack targeted at high-density server and network equipment. The ACDC2402 fits the 45U SX variant specifically — verify your U-height before ordering, as SX headers are not interchangeable across U-sizes.
If your enclosure is a different U-height or a different APC series (AR, SE, or earlier NetShelter generations), this header will not be the correct fit. Cross-reference your enclosure model number against APC's parts compatibility matrix before purchasing.
Installation Notes
Door headers on the VX and SX series attach via the enclosure's front door frame using the existing fastener pattern — no drilling or modification required on an intact frame. This is a drop-in replacement component. Have your enclosure model number and current door configuration documented before installation to confirm the header orientation (some APC enclosure doors are reversible).
Frequently Asked Questions
Q: What rack enclosures is the ACDC2402 compatible with?
A: The ACDC2402 is a door header designed for APC 42U VX series and 45U SX series rack enclosures. It is not a universal fit — verify your enclosure model and U-height before ordering.
Q: Is the ACDC2402 a replacement part or does it come with a new enclosure?
A: The ACDC2402 is sold as a standalone door header component, suitable for replacement or spare-parts purposes on existing VX and SX enclosure deployments.
Q: Will this door header fit APC NetShelter SX enclosures of other U-heights?
A: No. The ACDC2402 is specifically for the 45U SX configuration. SX door headers are not interchangeable across U-heights — a 42U SX or 48U SX enclosure requires a different part number.
Q: Can the ACDC2402 be used on non-APC rack enclosures?
A: No. This is an OEM part designed to the exact frame dimensions and fastener pattern of the APC VX and SX enclosure generations. It will not fit racks from other manufacturers.
The ACDC2402 is one of those parts that only matters when you need it — and when you do, getting the wrong one costs you a full service visit. This is the OEM door header for two specific APC enclosure configurations: the 42U VX and the 45U SX. Those are not interchangeable with each other or with other U-heights in the same series.
Technical Highlights:
- Series-Specific Fit: Designed to the exact frame geometry of the APC VX (42U) and SX (45U) enclosure generations — ensures proper door alignment and frame closure without shimming or modification.
- OEM Replacement Component: Factory-matched part number for these two enclosure families, which matters if the enclosure is under a maintenance contract or if door integrity is part of a compliance baseline.
- Drop-In Installation: Uses the existing fastener pattern on intact VX/SX frames — no frame modification required, which keeps the service window short on a live rack replacement.
Deployment Considerations:
- Confirm your enclosure's exact model number and U-height before ordering. The 42U VX and 45U SX are the confirmed fits — a 42U SX or 48U SX requires a different part number entirely.
- If the enclosure door is configured as reversible (left- or right-hand swing), document the current orientation before removal so the header goes back in the correct position.
The right call for facilities teams managing a fleet of APC VX or SX enclosures as spare-parts inventory — having the ACDC2402 on the shelf means a damaged door header is a 15-minute swap, not a procurement cycle.
