APC by Schneider Electric AR7720 Koldlok Integral Raised Floor Grommet
The APC by Schneider Electric AR7720 is a Koldlok Integral Raised Floor Grommet designed to seal cable penetrations through raised floor tiles in data center and server room environments. At its core, this grommet addresses one of the more overlooked thermal management problems in raised-floor deployments: unsealed cable cutouts bleed conditioned underfloor air into the room rather than directing it through perforated tiles to the equipment that needs it. Closing those gaps with a purpose-built data center cable management solution like the AR7720 is a low-cost way to meaningfully improve cooling efficiency without touching your CRAC units or airflow layout.
Key Features
- Integral Raised Floor Design: Built specifically for raised floor installations — fits directly into the floor tile cutout rather than relying on adhesive afterthoughts or foam strips, which compress unevenly and degrade over time.
- Compact Profile (278 x 210 x 41 mm): At 41 mm deep, the grommet sits flush or near-flush with the tile surface, keeping the cable pathway clean without creating a trip hazard or interfering with adjacent tile placement.
- Koldlok Sealing System: The Koldlok design uses a brush or membrane seal (characteristic of this product family) to allow cables to pass through while blocking bulk airflow — the key functional distinction from a plain cutout ring or open knockout.
- Package Dimensions (216 x 432 x 337 mm): Sized for straightforward single-unit shipment; verify your floor tile cutout dimensions against the 278 x 210 mm footprint before ordering to avoid a return.
Integration and Compatibility
The AR7720 is part of APC by Schneider Electric's raised floor infrastructure line, which integrates with their broader data center physical infrastructure portfolio. Verify tile cutout dimensions match the 278 x 210 mm grommet footprint. For broader power and physical infrastructure planning, confirm your floor tile grid spacing and cutout pattern before specifying quantity — mixed tile vintages sometimes have non-uniform knockout sizes.
Frequently Asked Questions
Q: What are the installed dimensions of the AR7720?
A: The AR7720 measures 278 x 210 x 41 mm (W x D x H) installed.
Q: What is the package size for the AR7720?
A: The package dimensions are 216 mm wide x 432 mm deep x 337 mm tall.
Q: What is the AR7720 designed to do?
A: The AR7720 is a raised floor grommet from APC's Koldlok line. It seals cable pass-through cutouts in raised floor tiles to prevent uncontrolled underfloor air bypass — a common source of cooling inefficiency in data center environments.
Q: Is the AR7720 compatible with all raised floor tile systems?
A: Compatibility depends on your floor tile cutout dimensions. The AR7720 footprint is 278 x 210 mm. Verify your tile manufacturer's cutout specification before ordering.
The AR7720 is one of those products that gets ignored during data center builds and regretted during the first thermal audit. The 278 x 210 mm footprint and 41 mm depth are the specs to validate upfront — if your floor tile cutout pattern doesn't match, you're looking at field modification or a different SKU, and neither is a fun discovery after the racks are loaded.
Technical Highlights:
- Installed footprint (278 x 210 mm): Matches standard raised floor tile knockout patterns in most modern data center builds — but 'most' is not 'all.' Pull your tile spec sheet before committing to quantity orders.
- 41 mm installed depth: Low-profile enough to avoid tile-to-tile interference when cables route across adjacent panels, which matters in dense cable runs near patch zones.
- Koldlok brush/membrane seal: The defining functional feature of this product family — allows cable pass-through while blocking bulk underfloor air bypass, which is the actual thermal problem being solved here.
Deployment Considerations:
- Mixed raised floor environments with tiles from multiple vendors or vintages frequently have non-uniform cutout sizes — measure before ordering, not after.
- The AR7720 is a passive seal, not a blanking panel. If you have open cutouts with no cables running through them, a solid blanking plate is the correct solution, not a grommet.
Best fit for new data center builds or retrofit projects where cable cutout sealing is part of a structured airflow containment initiative — particularly in hot-aisle/cold-aisle or in-row cooling environments where underfloor bypass air is a documented efficiency loss.
