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Rectangular metal server power supply unit with label showing Coldwatt branding and 650W rating

Coldwatt

Coldwatt CWA2-0650-10-IS01-1 650W server power supply ISIL051-0003-01

SKU CH-K1X3-VW4PW

650 W server power supply delivering 12 V at 54 A and 5 V at 3 A from 10-127/200-240 V, 50-60 Hz input

  • TypePower Supplies
  • Delivers 650 W for high-density server loads
  • Dual 12 V rails supply 54 A for CPU and GPU demands
  • 5 V standby rail provides 3 A for management controllers
  • Auto-ranging input covers 10-127 V and 200-240 V at 50-60 Hz
  • Cold-swap compatible design fits Coldwatt CWA2 chassis

Direct Replacement Unit

This Coldwatt server power supply is a 650 W unit built for the CWA2-0650-10-IS01-1 chassis. It carries part number ISIL051-0003-01 and is supplied in new condition. Administrators use it to restore or maintain power redundancy in compatible Dell systems.

Suitable For Matching Chassis

The supply fits the specific model and part number listed above. It is not for builds that require a different form factor, a different output rating or a different connector layout. Buyers who need a higher wattage unit or a non-server form factor should look elsewhere.

650 Watt Output Rating

The unit provides 650 W total output with a 12 V rail rated at 54 A and a 5 V standby rail rated at 3 A. Input range covers 10-127 V and 200-240 V at 50-60 Hz. Match these figures to the system power budget before ordering.

Highlights

  • Delivers 650 W for high-density server loads
  • Dual 12 V rails supply 54 A for CPU and GPU demands
  • 5 V standby rail provides 3 A for management controllers
  • Auto-ranging input covers 10-127 V and 200-240 V at 50-60 Hz
  • Cold-swap compatible design fits Coldwatt CWA2 chassis

Specifications

BrandDELL
ModelCWA2-0650-10-IS01-1
Part NumberISIL051-0003
TypePower Supplies

Questions about this item

What server chassis and backplane accept the Coldwatt CWA2-0650-10-IS01-1 form factor?

This unit fits Coldwatt CWA2-0650-10-IS01-1 compatible chassis with a matching redundant power-supply backplane and the ISIL051-0003-01 part-number slot.

Will the 12 V 54 A and 5 V standby 3 A outputs support older drives and expansion cards I keep?

The supply delivers 12 V at 54 A and 5 V standby at 3 A, matching the original Dell CWA2-0650-10-IS01-1 specification for legacy 12 V and 5 V SB loads.

How can I confirm the PSU is operating correctly after installation?

Verify the green power-good LED on the module face is lit, the server POST completes without power alarms, and system sensors report 12 V and 5 V SB within tolerance.

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