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Nipron's Unique Primary Redundant Power Supply
 pNSP2U-330P-A2A2S •Following pNSP2U-550P-AAS, compact 300mm in depth is now available
•Higher efficiency than existing redundant power supply with our patented technology. Less inner heat and higher reliability.
•SSI-ERP2U 330W high power(including one-unit operation)
•Power supply ratio between two input units can be set optionally by external signal.
•Combining with another primary unit, safer and more economical
*Please use Metric Screw Threads, ("M3" screws) for PSU mounting.(Inch Screw Threads cannot be used.)
Function :For description of function, click each icon
DC Startup uncomplianceRS232C uncomplianceTTL uncomplianceSilent uncomplianceRoHS Directive complianceConnection compliancePFC complianceLead-free compliance5VSBFAN complianceTSFCFAN uncomplianceUSB uncompliance
Output specification
Output specification ,Continuous 276W,Peak Capacity 328W
Output connector: For description of function, click each icon
Output connector for ATX Mother Board compliance ATX 12V ver. 2.0 or later power supply with SSI power connector complianceATX20+4Pin uncomplianceAT motherboard output connector uncomplianceATX Motherboard Auxiliary Connector uncomplianceProcessor connector for ATX motherboard complianceProcessor Connector for SSI Motherboard compliancePCI-Express compliancePCI-E 8Pin uncompliancePeripheral connector complianceConnector compliant with the S-ATA (Serial ATA) standard complianceConnectors for FDDs compliance
Standard, specifications: For standard and specifications, click each item.
Compatible case size ERP2U
Outline drawing 108Wx83.8Hx300D
Weight 3.50 kg typ
Input Voltage AC 85-264V
Efficiency AC 73% typical at AC 100V/76% typical at AC 240V
Power factor 99% typical at AC 100V/94% typical at AC 240V
Input changeover system Worldwide
AC, DC input
Safety UL60950, CSA60950(c-UL)
High frequency current regulation IEC61000-3-2(Ed. 2.1) Class D EN61000-3-2(A14) Class D
EMI standard
(Input feedback noise)
VCCI Class B FCC Regulation Class B EN55022 Class B
CE marking
EMS immunity Electrostatic discharge: EN61000-4-2 compliant
Radiated,radioactive electromagnetic fields: EN61000-4-3 compliant
Fast transient burst: EN61000-4-4 compliant
Lightning surge: EN61000-4-5 compliant
Conductive radio frequency electromagnetic field: EN61000-4-6 compliant
Power source frequency magnetic immunity: EN61000-4-8 compliant
Voltage dips/regulation: EN61000-4-11 compliant
MTBF 64,000H min (when operating with one unit)
Operating temperature 0 to 40 deg C (100%), 60 deg C (60%)
Leakage current 0.5mA max. at AC 100V/1mA max. at AC 240V per unit
Cooling systems Forced air cooling
Output ground connection Connected to chassis
Signal unit
Warranty Three years after delivery,
Accessory (Optional)
WH-M2024-500 20-Pin Mother Board Harness
WH-M2424-500 24-Pin Harness for Motherboard
WH-PP610-850 Peripheral Connector Harness(Peripheral*5 FDD*1)
WH-PS610-850 Peripheral Connector HarnessPeripheral Connector Harness(Peripheral*3 S-ATA*2 FDD*1)
WH-PS710-850 Peripheral Connector Harness(Peripheral*2 S-ATA*4 FDD*1)
WH-V0408-500 +12V Power Connector Harness (4P)
WH-V0808-500 +12V Power Connector Harness (8P)
WH-VG208-500 +12V Power Connector Harness With PCI Express Compatible Connector
WH2753(PS2753) AC Power Cable(PSE)