Rugged VPX Power Supply Overview

Rugged VPX Power Supply Overview

3U VPX Power Supply

3U and 6U VPX Power Supplies & Power Converters

NAI offers Commercial Off-the-Shelf (COTS) and Modified COTS power supplies and power converters that plug directly into standard 3U and 6U VPX chassis and are conduction-cooled through the card edge/wedgelock. With their advanced design, these rugged converters accept either +28 VDC input, +270 VDC input or 3Ø, AC input. These off-the-shelf solutions for VITA 46.0 and VITA 65 systems are compatible with VPX specifications; support all VITA standard I/O, signals, and features; and conform to the VITA 62 mechanical and electrical requirements for modular power supplies.

The NAI VPX family of power products include a variety of standard features, including Continuous Background Built-in-Test (BIT); remote error sensing; and protection against transients, overvoltage, overcurrent, short circuits and over temperature. These intelligent designs also have the flexibility to address special needs. Optional current share is available on main outputs.

Power Supply Reference Guide



Intelligence Compliances Protection Mechanical Additional
I2C Communication MIL-STD 810G Input Transients 3U, 0.8" or 1.0" Pitch Remote Sense
Programmability MIL-STD 461F Overcurrent 6U, 1.0" Pitch Current Share
Geographical Addressing MIL-STD 704A-F Overvoltage Conformal Coating Status LED
Status Monitoring MIL-STD 1275 Short Circuit Wedgelock - Plug-in NAVMAT Derating
VITA 46.11 Compatible VITA 47 Over Temperature VITA STD. Keying 100% ESS Tested

ModelForm FactorInput# of OutputsOutput PowerInput TransientsEMIFeaturesCooling MethodConnector - I/O
VPX55-33U, 0.8"+28 VDC6400 WattsMIL-STD-704 & MIL-STD 1275MIL-STD-461FVITA 62 Signals, I2C, Current ShareWedgelockPer VITA 62
VPX55H-33U, 0.8"+28 VDC6500 WattsMIL-STD 704MIL-STD 704VITA 62 I/O, Programmable, I2C, OverTemp, Status LED, Current ShareWedgelockPer VITA 62
VPX57-313U, 1.0"+270 VDC6500 WattsMIL-STD-704MIL-STD-461FVITA 62 I/O, Programmable, I2C, OverTemp, Status LED, Current ShareWedgelockPer VITA 62
VPX55-3HU3U, 0.8"+28 VDC2500 WattsMIL-STD-704A-FMIL-STD-461FBIT, Holdup TimeWedgelockPer Vita 62
VPX56-66U, 1.0"115 VAC 3 Phase or +270 VDC5700 WattsMIL-STD-704MIL-STD-461FI2C, Remote Sense, Status LED, OverTemp Protection, Current ShareWedgelockPer VITA 62
VPX56H-66U, 1.0"115 VAC 3 Phase or +270 VDC51,000 WattsMIL-STD-704FMIL-STD-461FHIGH POWER, VITA 62 I/O, Programmable, I2C, OverTemp, Status LED, Current ShareWedgelockPer VITA 62