APC by Schneider Electric DCPM28HN54SH0 2800W 54V DC Rectifier N+1 Redundancy Rack Module

Overview

The APC by Schneider Electric Magnum XS DCPM28HN54SH0 is a rack-mountable DC rectifier built for telecom, data center, and industrial applications where continuous DC power delivery is non-negotiable. Rated at 2800W with a 48V nominal output and support for N+1 redundancy, this unit is designed to stay in service even when one rectifier module fails — a critical design requirement for any infrastructure that cannot tolerate a planned or unplanned power gap.

Unlike consumer-grade power supplies, the DCPM28HN54SH0 targets environments running serial horizontal rectifier shelves where individual modules must be swappable without pulling the load offline. If you manage a telecom central office, a dense rack in a colocation facility, or a security operations center with high DC bus demand, this is the product class to be evaluating.

The APC by Schneider Electric power and infrastructure catalog includes the Magnum XS line specifically for applications demanding high-density DC conversion — this unit fits squarely in that bracket. For buyers comparing this against other rack-mounted power supplies, the 2800W output and hot-swap capability are the differentiating specs to weigh against your bus requirements and shelf configuration.

Key Features

• 2800W Output Power: At 2800W per module, a single DCPM28HN54SH0 can sustain significant DC bus loads without requiring parallel modules just to cover baseline draw. In an N+1 shelf configuration, this headroom means the redundant module can absorb the full load of any single failed peer — not just a fraction of it.
• 48V / 54V DC Output: The 54V nominal output (commonly referenced as 48V nominal in telecom standards) aligns with the standard voltage bus used across telecom switching, IP PBX, and network equipment racks. You won't need a step-down converter between this rectifier and your DC-native loads.
• 293V AC Input: The 293V AC input rating supports high-line AC feeds common in international deployments and three-phase derived single-phase circuits. This extends deployment flexibility without requiring a separate auto-transformer in regions or facilities running elevated supply voltages.
• Hot-Swappable Form Factor: Hot-swap capability means a failed module can be pulled and replaced while the shelf remains energized and the load stays online. For critical infrastructure — surveillance head-end rooms, 911 dispatch centers, or telecom NOCs — this eliminates the maintenance window that a fixed-supply replacement would demand.
• N+1 Redundancy Architecture: The serial horizontal N+1 redundancy design means one extra rectifier module is always standing by. If any active module fails, the standby absorbs the load immediately with no operator intervention required. For facilities with strict uptime SLAs, this is the architecture to specify over non-redundant alternatives.
• Rack-Mountable and Surface-Mount Compatible: The unit supports both standard rack integration and surface-mount deployment, giving installers flexibility in how the shelf is positioned within the power distribution infrastructure. This matters in retrofit scenarios where a full 19-inch rack bay may not be available.

Integration and Compatibility

The DCPM28HN54SH0 is designed to integrate into APC Magnum XS rectifier shelf systems as a modular component. Before ordering, confirm your shelf model accepts this specific rectifier module — Magnum XS shelves are configured for specific module counts, voltage rails, and communication bus pinouts. Mixing rectifier generations within a shelf is not supported by APC and will void the shelf's redundancy design. Consult the Magnum XS shelf documentation or engage pre-sales engineering to verify module-to-shelf compatibility before purchase.

For facilities building out a full DC power architecture, this rectifier pairs with appropriate rack infrastructure and downstream distribution equipment. The 48V DC output bus is compatible with a broad range of network, telecom, and security equipment designed for nominal -48V DC supply — verify polarity conventions with your load equipment before wiring.

If you are planning a new DC power plant or expanding an existing one, reviewing a power infrastructure planning guide before finalizing module count and shelf configuration will help prevent undersizing the redundancy margin for future load growth.

Frequently Asked Questions

Q: What is the output voltage of the DCPM28HN54SH0?

A: The DCPM28HN54SH0 delivers a 48V DC nominal output (rated at 54V), which aligns with standard telecom and network equipment DC bus voltages.

Q: Is the DCPM28HN54SH0 hot-swappable?

A: Yes. The DCPM28HN54SH0 is designed for hot-swap operation, meaning it can be removed and replaced while the shelf remains energized and the connected load stays online — no maintenance window required.

Q: What AC input voltage does the DCPM28HN54SH0 require?

A: The unit accepts up to 293V AC input, accommodating high-line AC feeds common in international facilities and certain three-phase derived circuits.

Q: How does N+1 redundancy work with the DCPM28HN54SH0?

A: In an N+1 configuration, one extra rectifier module beyond the minimum required is installed in the shelf. If any active module fails, the standby module automatically absorbs the load, maintaining uninterrupted DC power delivery without operator intervention.

Q: What are the physical dimensions and weight of the DCPM28HN54SH0?

A: The unit weighs 16 lbs. Listed dimensions are 23.60 x 23.60 x 78.70 inches — note these likely reflect the shelf or packaging assembly rather than the individual rectifier module; verify rack unit height with APC's Magnum XS shelf documentation before installation planning.

Q: Can the DCPM28HN54SH0 be surface-mounted outside of a rack?

A: Yes. The DCPM28HN54SH0 supports both rack-mount and surface-mount installation, providing flexibility for retrofit or non-standard enclosure deployments.

Marty Allison

The DCPM28HN54SH0 is a module I'd specify whenever a customer is running a Magnum XS rectifier shelf and needs to hit N+1 redundancy without oversizing the shelf. The 2800W output per module is the key number here — it means your redundant module can actually cover the full rated load of any single failed peer, not just top off a partially loaded bus. That's the math you need to verify before ordering: your maximum expected bus load must fall within 2800W so that one module failure doesn't cause a cascading under-voltage condition on the remaining modules.

Technical Highlights:

• 2800W Per Module: High enough to sustain a fully loaded telecom or security head-end bus on a single module during a failure event — that's the real test of whether N+1 is genuine or just marketing arithmetic.
• 48V / 54V Output Rail: Matches the standard DC bus voltage for -48V telecom equipment, IP networking gear, and DC-native security infrastructure without requiring intermediate conversion hardware.
• 293V AC Input Ceiling: Accommodates high-line international supply and three-phase derived feeds, reducing the need for step-up transformers in facilities with elevated AC infrastructure.

Deployment Considerations:

• Verify shelf-to-module compatibility before ordering — not all Magnum XS shelves accept the same rectifier module revision, and the serial horizontal form factor means a wrong-generation module physically installs but may not communicate or load-share correctly with the shelf controller.
• The published dimensions (23.60 x 23.60 x 78.70 in) almost certainly represent the shelf assembly or packaging, not the individual rectifier module — do not use these figures for rack unit planning without cross-referencing APC's Magnum XS shelf spec sheet.

The DCPM28HN54SH0 is the right call for telecom central offices and security operations centers running a -48V DC bus where a single rectifier failure cannot be allowed to interrupt service — N+1 hot-swap at 2800W per slot is exactly the architecture those environments require.