APC by Schneider Electric ACRH301P InRow 27kW Twin Coil Precision Cooling Unit
Overview
The ACRH301P is APC by Schneider Electric's InRow precision cooling unit designed for high-density data center rows where conventional overhead or perimeter CRAC systems can't keep pace. At 27 kW of cooling capacity packed into a 300 mm (11.8-inch) wide chassis, this unit drops into a standard equipment row and delivers conditioned air directly at the source of the heat load — the effect is shorter air paths, less mixing, and better thermal control than raised-floor approaches at equivalent power densities. Built for indoor installation on 200–240 V / 50–60 Hz infrastructure, the ACRH301P targets enterprise server rooms, colocation rows, and edge data center deployments where precise temperature and humidity control are non-negotiable.
Key Features
- 27 kW Cooling Capacity: Enough headroom to support a densely loaded server row — at typical blade or 1U server heat outputs of 5–10 kW per rack, this unit can serve a 3–5 rack cluster from a single chassis. That matters when you're designing row-level cooling without overprovisioning floor space.
- 300 mm (11.8-inch) Cabinet Width: The narrow footprint is engineered to mount between standard 600 mm or 750 mm wide racks without consuming a full rack bay. The 78.4-inch height aligns with standard 42U–47U rack elevations, so the unit integrates flush with the row rather than creating airflow gaps that defeat containment.
- Twin Coil Architecture: Dual coils provide redundant heat exchange capacity within a single unit frame. In a row cooling configuration, this gives you a degree of thermal resilience — if one coil circuit degrades, cooling doesn't collapse immediately, providing a maintenance window rather than an emergency shutdown.
- Integrated Humidifier: Precision cooling without humidity control often overshoots on dehumidification, dropping relative humidity below the ASHRAE A1/A2 recommended floor and triggering static discharge risks on sensitive electronics. The built-in humidifier maintains the target RH band without requiring a separate standalone humidifier unit on the floor.
- Reheat Capability: During low-load periods or in cooler ambient conditions, chillers can overcool. The reheat function allows the ACRH301P to trim supply air temperature back up, preventing condensation on cold equipment surfaces — a real failure mode in rooms with variable load profiles.
- 200–240 V / 50–60 Hz Input: The wide-range input voltage covers both North American 208 V three-phase environments and international 230 V installations, making the ACRH301P deployable across global data center footprints without transformer intermediaries.
- CE and UL Listed: Dual certification means the unit meets both North American safety (UL) and European conformity (CE) requirements. For enterprise procurement teams managing multi-region deployments, a single SKU with both marks simplifies compliance paperwork.
- 441 lb Operational Weight: Plan your floor loading calculations before committing to placement. At 441 lb the ACRH301P exceeds typical raised-floor tile ratings of 1,000–2,000 lb/panel only when concentrated loads are considered — verify your floor structure's point-load capacity, particularly in older data halls with legacy raised-floor systems.
Integration and Compatibility
The ACRH301P is part of APC by Schneider Electric's InRow cooling line, designed to integrate with EcoStruxure IT and NetSight management platforms for monitoring supply/return air temperatures, humidity levels, and unit status. For row-based data center cooling architectures, the unit pairs with hot-aisle or cold-aisle containment systems — containment is effectively required to realize the efficiency gains of row cooling. Without containment, recirculation undermines the short air-path advantage the 300 mm form factor provides.
Before specifying the ACRH301P, confirm your chilled water or refrigerant loop infrastructure matches the unit's coil requirements. InRow units of this class typically require a chilled water supply — verify loop pressure, flow rate, and supply temperature compatibility with APC's published coil specifications for this model. Pairing with APC precision power distribution and environmental monitoring sensors rounds out a complete row-level infrastructure stack.
Frequently Asked Questions
Q: What is the cooling capacity of the ACRH301P?
A: The ACRH301P delivers 27 kW of cooling capacity, making it suitable for high-density server rows in enterprise and colocation data center environments.
Q: What are the input voltage requirements for the ACRH301P?
A: The unit operates on 200–240 V input at 50 or 60 Hz, covering both North American 208 V and international 230 V data center power infrastructures.
Q: What certifications does the ACRH301P carry?
A: The ACRH301P is CE and UL listed, meeting European conformity and North American safety requirements for data center equipment.
Q: What does the twin coil design provide in a row cooling application?
A: The twin coil architecture provides dual heat exchange circuits within a single chassis. If one coil circuit experiences degraded performance, the unit maintains partial cooling capacity while you schedule service — reducing the risk of an uncontrolled thermal event in the row.
Q: Does the ACRH301P include humidification and reheat?
A: Yes. The unit includes an integrated humidifier to maintain relative humidity within recommended operating bands, and a reheat function to prevent overcooling and condensation during low-load or cool ambient conditions.
Q: How wide is the ACRH301P and does it fit between standard racks?
A: The chassis is 300 mm (11.8 inches) wide and 78.4 inches tall, designed to mount between standard data center rack rows without consuming a full rack bay footprint.
The ACRH301P's 300 mm chassis width is the spec I'd start every row-cooling conversation with — it's not just a physical measurement, it's the design constraint that determines whether InRow cooling fits your existing row layout without sacrificing a rack bay. At 27 kW, this unit handles a meaningful chunk of a high-density row's heat output from a single narrow enclosure, which changes how you size your cooling plant compared to perimeter CRAC approaches.
Technical Highlights:
- 27 kW in 300 mm: Delivers row-level cooling density competitive with much wider precision air units — critical when floor space in the data hall is priced by the square foot and you're building out high-density compute rows.
- Integrated Humidifier + Reheat: Handling temperature and humidity in a single unit eliminates the coordination problem between separate CRAC and humidifier systems. Reheat prevents the overcooling/condensation cycle that's a real failure mode in variable-load rooms — not a feature to overlook.
- CE + UL Dual Certification: One SKU satisfying both North American and European safety standards is a procurement simplification that matters on multi-site enterprise infrastructure projects — avoids managing two SKU lines for the same function.
Deployment Considerations:
- At 441 lb, the ACRH301P demands a floor loading review before placement — particularly in older raised-floor data halls where point-load capacity under the tile grid may be below what the unit's footprint concentrates. Get the structural spec on your floor panels before finalizing position.
- Row cooling only delivers its efficiency advantage inside a containment system. Deploying the ACRH301P without hot-aisle or cold-aisle containment will allow recirculation that undermines the short air-path benefit the 300 mm form factor is designed to provide.
The ACRH301P is the right specification for enterprise IT managers and data center architects retrofitting high-density blade or GPU compute rows into existing data halls where perimeter cooling can no longer keep up — particularly where floor space constraints make a wider precision air unit impractical.
