APC by Schneider Electric ACCU301D InRow DX Condensing Unit 460-480V
Overview
The ACCU301D is APC by Schneider Electric's InRow DX condensing unit, engineered for precision-cooled data center environments running 460–480V three-phase power infrastructure. At 600 lb and a 39.4" × 61.2" × 39.4" footprint, this is a purpose-built, commercial-grade refrigeration component — not a general-purpose CRAC unit — designed to pair with a matched InRow DX air handler in a split-system cooling architecture. If you're deploying row-based cooling where the condenser must sit outside the data hall or on a rooftop mechanical pad, the ACCU301D addresses that requirement directly.
Key Features
- Dual-Circuit Design: The double-circuit configuration provides redundancy at the refrigeration level — if one refrigerant circuit faults, the remaining circuit continues to offload heat. For 24/7 facilities where a cooling outage triggers an immediate thermal event, this is the spec that keeps you out of an emergency shutdown scenario.
- 460–480V Input Voltage: Matched to North American three-phase commercial electrical infrastructure. This voltage range is standard in medium and large data centers, eliminating the need for step-down transformers and the efficiency losses that come with them.
- 600 lb Structural Footprint: At 272 kg, structural floor loading and rigging plans are non-negotiable pre-installation steps. Confirm the mechanical pad or rooftop curb rating before scheduling delivery — this is not a unit that gets repositioned after placement.
- 39.4" × 61.2" × 39.4" Envelope: The cubic form factor suits both rooftop pad and indoor mechanical room installs. Verify clearance requirements from the APC InRow DX installation guide before finalizing equipment room layout.
Integration & Compatibility
The ACCU301D is a condensing unit within the APC by Schneider Electric InRow DX platform. It is designed to operate as the outdoor or remote condenser half of a split direct-expansion precision cooling system — matched to a corresponding InRow DX air handler installed in the data row. Refrigerant line sizing, charge weight, and system commissioning should follow APC's InRow DX installation and commissioning documentation. Integration with APC's EcoStruxure IT or DCIM platforms for monitoring and alarming is standard practice in this product family, though specific integration details should be confirmed against the installed air handler's management card.
Frequently Asked Questions
Q: What voltage does the ACCU301D require?
A: The ACCU301D is rated for 460–480V input, matching standard North American three-phase commercial electrical infrastructure.
Q: What does 'double circuit' mean on the ACCU301D?
A: The double-circuit designation means the unit contains two independent refrigeration circuits. If one circuit fails, the second continues to operate, providing a level of cooling redundancy critical in always-on data center environments.
Q: How heavy is the ACCU301D and what are its dimensions?
A: The ACCU301D weighs approximately 600 lb (272 kg) and measures 39.4" wide × 61.2" high × 39.4" deep. Structural floor or rooftop load planning is required before installation.
Q: Is the ACCU301D a standalone cooling unit?
A: No. It is a condensing unit — the outdoor or remote half of a split-system InRow DX cooling architecture. It must be paired with a compatible APC InRow DX air handler to form a complete system.
Q: What refrigerant does the ACCU301D use?
A: Refrigerant type is not specified in the available evidence. Consult the APC InRow DX product documentation or contact APC's pre-sales engineering team for refrigerant specifications.
The ACCU301D is the condensing half of APC's InRow DX split cooling system — a 600 lb, 460–480V dual-circuit unit that belongs on a rooftop mechanical pad or in a dedicated mechanical room, not on the data floor. If you're spec'ing this, you already know the air handler is going row-side; this unit handles the heat rejection side of that equation.
Technical Highlights:
- Double Refrigeration Circuit: Two independent circuits mean a single compressor or refrigerant leak doesn't take the entire cooling system offline — essential when the air handler is servicing a high-density row with no rapid failover path.
- 460–480V Three-Phase: Aligns with standard commercial distribution in medium and large data centers, keeping the electrical integration straightforward and avoiding transformer losses.
- 600 lb / 272 kg Mass: This unit requires engineered rigging and a confirmed structural load rating on whatever surface it lands on — rooftop curb, concrete pad, or raised floor mechanical section. Don't schedule delivery without a confirmed load path.
Deployment Considerations:
- The ACCU301D is not a plug-and-play unit — refrigerant line sizing, charge calculation, and system commissioning require a licensed refrigeration technician and APC's InRow DX commissioning documentation. Budget for professional commissioning at project start, not as an afterthought.
- At 39.4" × 39.4" footprint, confirm mechanical room or rooftop clearance dimensions against APC's minimum service access requirements before finalizing placement — access panels on all four sides are typical for this class of equipment.
The ACCU301D is the right condensing unit for a greenfield InRow DX deployment in a mid-to-large enterprise data center or colocation suite where the cooling architecture calls for split-system precision cooling and the electrical infrastructure is already running 460–480V three-phase distribution.
