Dell 700-Watts Hot-Swap Power Supply for Dell PS4100 PS6100 SC200 – DD20N

Dell 700W Hot-Swap Power Supply for PS4100 / PS6100 / SC200

The Dell DD20N is a 700W hot-swap power supply designed for Dell PowerVault PS4100, PS6100, and SC200 storage enclosures, providing redundant power capability with zero-downtime replacement to maintain continuous storage array availability.

Key Features

• 700W output with hot-swap capability for zero-downtime replacement
• Designed for Dell PowerVault PS4100, PS6100, and SC200 storage enclosures
• Supports N+1 redundant power configurations for high-availability environments
• Active power factor correction (PFC) for efficient power utilization
• Direct OEM Dell replacement — drop-in compatible with no configuration required

Product Specifications

• Part Number: DD20N
• Manufacturer: Dell
• Output Power: 700W
• Type: Hot-Swap Redundant Power Supply
• Compatible Systems: Dell PowerVault PS4100, PS6100, SC200
• Input Voltage: 100–240V AC (auto-ranging)
• Form Factor: Storage enclosure PSU (proprietary sled)

Power & Electrical Specifications

• Output Voltage: +12V primary rail
• Power Factor Correction: Active PFC
• Efficiency: 80 PLUS rated
• Hot-Swap: Yes (no enclosure shutdown required)
• Redundancy: N+1 supported (requires second PSU in enclosure)
• Cooling: Integrated fan (enclosure airflow assisted)

Use Cases

• Replacement of failed PSU in Dell PS4100 or PS6100 iSCSI SAN enclosures
• Adding redundant power to Dell SC200 expansion enclosures
• Preventive maintenance stock for Dell PowerVault storage environments
• Data center storage infrastructure repair and uptime restoration

Compatibility

• Direct replacement for Dell PowerVault PS4100 and PS6100 storage enclosures
• Compatible with Dell SC200 expansion enclosure
• Not compatible with Dell PowerEdge rack servers — PSU form factor is storage-enclosure specific
• Verify enclosure firmware and PSU revision compatibility before installation

Frequently Asked Questions

Can I replace the DD20N while the storage enclosure is running?

Yes — the DD20N supports hot-swap replacement. As long as a second working PSU is present in the enclosure for redundancy, the failed unit can be swapped without powering down.

Is the DD20N compatible with Dell PowerEdge servers?

No — this PSU is designed specifically for Dell PowerVault storage enclosures and uses a proprietary sled form factor not compatible with PowerEdge server chassis.

What happens if only one PSU is installed and it fails?

Without a second redundant PSU, a single PSU failure will cause the enclosure to power down. Dell recommends always operating with two PSUs for production storage environments.

The Dell DD20N delivers the hot-swap redundancy and 700W capacity that mission-critical storage environments demand — ensuring Dell PS4100, PS6100, and SC200 enclosures remain online through PSU failures and scheduled maintenance without disrupting data access.