Rugged Power Supplies For Harsh Environments
North Atlantic Industries (NAI)
NAI designs and manufactures a full line of Commercial Off-the-Shelf (COTS), Modified COTS and Custom Power Supplies - including configurations that meet VME, cPCI and VPX (VITA 62) requirements. All comply with environmental standards designed for harsh environments, including MIL-STD-810G, VITA 47 and MIL-STD-901. NAI’s rugged power supplies also have integrated EMI filters per MIL-STD-461 standards.
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Product
Rugged VPX Power Supplies
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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.
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Unlisted Product
25-Watt DC/DC Converter
55GS1
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NAI’s 55GS1 is a COTS, 25-Watt DC/DC Converter that accepts a +28 VDC input and provides a single full-power output at a baseplate temperature of +100°C.
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Unlisted Product
100-Watt DC/DC Converter
55LS1
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NAI’s 55LS1 is a COTS, 100 Watt DC/DC Converter that accepts a +28 VDC input and provides a single full-power output at a baseplate temperature of +100° C.
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Product
25-Watt AC/DC Power Supply
Model 56GS1
Programmable Power Supply
NAI’s 56GS1 is a 25 Watt AC/DC Power Supply that accepts multiple AC inputs plus a +270 VDC input. This COTS unit provides a single full-power output at a baseplate temperature of +85° C.Standard features include remote error sensing; remote digital (TTL) turn on/off; and protection against transients, overvoltage, overcurrent, and short-circuits. Options such as ESS vibration testing and choice of output voltages are available, and additional options and special units can be ordered.
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Product
50-Watt AC/DC Power Supply
56JS1
Programmable Power Supply
NAI’s 56JS1 is a 50 Watt AC/DC Power Supply that accepts multiple AC inputs plus a +270 VDC input. This COTS unit provides full-power output at a baseplate temperature of +85° C.
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Product
300-Watt AC/DC Power Supply
Model 56RS1
Programmable Power Supply
NAI’s 56RS1 is a 300 Watt AC/DC Power Supply that accepts multiple AC inputs plus a +270 VDC input. This COTS unit provides a single full-power output at a baseplate temperature of +85° C.Standard features include remote error sensing; remote digital (TTL) turn on/off; and protection against transients, overvoltage, overcurrent, and short-circuits. Options such as ESS vibration testing and choice of output voltages are available, and additional options and special units can be ordered.
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Product
+5 VDC to +3.3 VDC 75-Watt Converter 6U VME
44KS2
DC Converter
NAI’s 44KS2 is a 75-Watt DC/DC Converter that plugs directly into a standard 6U VME chassis with an 0.8” slot. It is conduction-cooled through the card edge/wedgelock. This switching power supply accepts a +5 VDC input and converts it to a single +3.3 VDC output at 75 Watts. The 44KS2 is ideal for powering single board computers or any other devices that require +3.3 VDC.
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Product
1,500-Watt AC/DC Power Supply, Air Plenum
56WS1-01
Programmable Power Supply
NAI’s 56WS1-01 is an air plenum-cooled, 1,500 Watt AC/DC Power Supply that converts either 3-phase, AC input or +270 VDC input into a single +28 VDC output at 1,500 Watts continuous or 3,000 Watts peak. This standalone device converts aircraft power so it can be used by system components.
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Product
300-Watt AC/DC Power Supply, 6U VME
Model 56SQ2
Programmable Power Supply
NAI’s 56SQ2 is a 300 Watt AC/DC Power Supply that uses two slots in a standard VME chassis. It is conduction-cooled through the card edge/wedgelock. This power supply accepts either a single- or three-phase input and provides up to 5 standard VME outputs plus standby at 300 Watts. It is designed for VME and general purpose applications. An onboard microcontroller allows for design flexibility.Standard features include continuous Background Built-in-Test (BIT); remote error sensing; holdup time; and protection against transients, overvoltage and short circuits. Options such as power fail warning, vibration testing, over-temperature monitoring and shutdown, current share, and extensive signaling (including ANSI/VITA) are available.
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Unlisted Product
300-Watt AC/DC Power Supply
Model 56RS3
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NAI’s 56RS3 is a 300 Watt AC/DC Power Supply that accepts a three-phase, AC input plus a +270 VDC input. This COTS unit provides a single full-power output (300 Watts) at a baseplate temperature of +85° C or a single 350 Watt output at a baseplate temperature of +70° C.Standard features include remote error sensing; remote digital (TTL) turn on/off; and protection against transients, overvoltage, overcurrent, and short-circuits. Options such as ESS vibration testing and choice of output voltages are available, and additional options and special units can be ordered.
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Product
100-Watt DC/DC Converter, 3U cPCI
55LQ2
DC Converter
NAI’s 55LQ2 is a 100 Watt DC/DC Converter that plugs directly into a standard 3U cPCI chassis with a 0.8” slot. It is conduction-cooled through the card edge/wedgelock. This modular, switching power supply accepts +28 VDC input and provides a single output at up to 100 Watts.
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Product
600-Watt DC/DC Converter, 6U VME/cPCI
55U91-01
DC Converter
NAI’s 55U91-01 is a 600 Watt DC/DC Converter that plugs directly into two card slots in a standard 6U VME chassis. It is conduction-cooled through the card edge/wedgelock. This switching power supply accepts +28 VDC input, provides up to 9 outputs at up to 614 Watts, and addresses the power supply needs of both VME and cPCI systems.
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Product
125-Watt DC/DC Converter, 3U cPCI
55LQ3
DC Converter
NAI’s 55LQ3 is a 125 Watt DC/DC Converter that plugs directly into a standard 3U cPCI chassis with a 0.8” slot. It is conduction-cooled through the card edge/wedgelock. This modular, switching power supply accepts +28 VDC input and provides a single output at up to 100 Watts.
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Product
Fire Control Computer
58MD3-01
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- 3Ø, 115 VAC input per MIL-STD-704A- Holdup time- Triple outputs, 160 Watts- Continuous Background Built-In-Test (BIT)
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Product
Avionics System Power
58WS1-03
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- 3Ø AC input per MIL-STD-704A- 1,500 Watts continuous, 3,000 Watts peak power- Environmentally sealed ATR style case- Continuous Background Built-In-Test (BIT) and ETI- EMI compliance
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Product
Mission Processor
58U91-03
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- +28 VDC input- 9 DC outputs at 600 Watts- Provides system EMI per MIL-STD-461- Continuous Background Built-In-Test (BIT)- Temperature monitoring- I2C communication
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Product
Navigational Control Indicator
58LD1-01
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- 3Ø AC input- 1 DC output plus AC lighting output- 100 Watt output- Operation up to 70,000 feet
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Product
600-Watt DC/DC Converter, 6U VME
64PS1
DC Converter
The 64PS1 is a 600 Watt DC/DC Converter that plugs into a 6U VME chassis with an 0.8” slot. It is conduction-cooled through the card edge/wedgelock. This switching power supply accepts a +28 VDC input and provides a single output at 600 Watts continuous or 1,000 Watts peak.
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Unlisted Product
1,500 Watt AC/DC Power Supply, Conduction
56WS2-01
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NAI’s 56WS2-01 is a conduction-cooled, 1,500 Watt AC/DC Power Supply that converts either 3-phase, AC input or +270 VDC input into a single +28 VDC output at 1,500 Watts continuous or 3,000 Watts peak.
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Product
300-Watt AC/DC Power Supply
56RS3
Programmable Power Supply
NAI’s 56RS3 is a 300 Watt AC/DC Power Supply that accepts a three-phase, AC input plus a +270 VDC input. This COTS unit provides a single full-power output (300 Watts) at a baseplate temperature of +85° C or a single 350 Watt output at a baseplate temperature of +70° C.
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Product
100-Watt DC Power Line Conditioner w/Holdup
44LS1
Power Line Conditioner
NAI’s 44LS1 is a 100-Watt Power Line Conditioner with holdup time that protects downstream DC/DC converters from transients, low voltage conditions, and power interruptions. This unit accepts +28 VDC input and provides 22.5 to 30 VDC at 100 Watts to all downstream DC/DC converters.
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Product
75/150-Watt DC/DC Converter w/Holdup, 3U cPCI
75PS4
DC Converter
NAI’s 75PS4 is a DC/DC Converter that plugs directly into a standard 3U cPCI chassis with a 0.8” slot. It is conduction-cooled through the card edge/wedgelock. This programmable, switching power supply accepts a +28 VDC input and is available in either a 75 Watt or 150 Watt-version.
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Product
DC/AC Sine Inverter
44KS6
Sine Inverter
- +28 VDC- Output 26 VAC @ 400Hz- 75 VA output power- MIL-1275D Compliant- Reverse Polarity Protection- Continuous Background Built-In-Test (BIT)- IPMI Monitoring of Voltages, Currents and Temperature- I2C communication- Temperature monitor- Nuclear Event Input
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Product
60-Watt DC/DC Converter, 3U cPCI
55KQ2-02
DC Converter
NAI’s 55KQ2-02 is a 60 Watt DC/DC Converter that plugs directly into a standard 3U cPCI chassis with a 0.8” slot. It is conduction-cooled through the card edge/wedgelock. This modular, switching power supply accepts +28 VDC input and provides a single output at up to 60 Watts. It is designed to work along with NAI’s 72.5 DC Power Line Conditioner w/Holdup companion unit, model 44KS3-02.
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Unlisted Product
72.5-Watt DC Power Line Conditioner w/Holdup
44KS3-02
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NAI's 44KS3-02 is a 72.5-Watt Power Line Conditioner with holdup time that protects downstream DC/DC converters from transients, low voltage conditions, and power interruptions. This unit accepts +28 VDC input and provides a single output at 72.5 Watts – either 22.5 to 30 VDC with holdup time or +16 VDC without holdup time - to all downstream DC/DC converters.
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Product
500-Watt AC/DC Power Supply
56TS1
Programmable Power Supply
NAI’s 56TS1 is a 500 Watt AC/DC Power Supply that accepts a 3Ø AC input or a +270 VDC input. This COTS unit provides full-power output power at a baseplate temperature of +85° C.
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Product
2,000 Watt AC/DC Standalone EMI Compliant Power Supply
56XS1
Programmable Power Supply
NAI’s 56XS1 is a conduction-cooled, 2,000 Watt AC/DC Power Supply that converts either 3-phase, AC input or +270 VDC input into a single DC output at 2,000 Watts.
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Unlisted Product
1,500 Watt AC/DC Power Supply
56WS4
Programmable Power Supply
NAI’s 56WS4 is a conduction-cooled, 1,500 Watt AC/DC Power Supply that converts either 3-phase, AC input or +270 VDC input into a single DC output at 1,500 Watts.
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Product
VPX55-3HU 3U VPX Power Line Conditioner with Holdu
VPX55-3HU
Power Line Conditioner
The VPX55-3HU is a 400-Watt DC/DC Power Line Conditioner which plugs directly into a standard 3U VPX chassis with a VITA 62 0.8" or 1.0" power slot. This off-the-shelf solution is compatible with VPX specifications and addresses the need for 3U VPX power applications requiring an optional VITA 62 Energy Storage Module.
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Product
1,000 Watt AC/DC (High Voltage Output) Power Supplies
56XS2
Programmable Power Supply
NAI’s 56XS2 is a conduction-cooled, 1,000 Watt AC/DC Power Supply that converts a 3-phase, AC input into a single HIGH VOLTAGE +270 VDC output at 1,000 Watts.
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Unlisted Product
400-Watt 3U VPX DC/DC Converter
VPX68-3
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NAI’s VPX68-3 is a high efficiency 400-Watt DC/DC Converter that plugs directly into a standard 3U VPX chassis with a VITA 62, 1.0” pitch power supply slot. This off-the-shelf solution for VITA 46.0 and VITA 65 systems is compatible with VPX specifications; supports all VITA standard I/O, signals, and features; and conforms to the VITA 62 mechanical and electrical requirements for modular power supplies.
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Product
1400 Watt AC/DC Power Supply, 6U VPX
VPX56H2-6
Programmable Power Supply
The VPX56H2-6 is NAI's latest high power, High Efficiency 1,400 Watt, High Efficiency AC/DC Converter which accepts either a 3Ø 115 VAC L-N inputs or a +270 VDC input. It plugs directly into a standard 6U VPX chassis with a (VITA 62) 1.0” power supply slot. This off-the-shelf solution for VITA 46.0 and VITA 65 systems is compatible with VPX specifications; supports all VITA standard I/O, signals, and features; and conforms to the VITA 62 mechanical and electrical requirements for modular power supplies.
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Product
50-Watt DC/DC Converter; Single Output
55JS1
DC Converter
NAI’s 55JS1 provides full-power, single output at a baseplate temperature of +100° C.
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Product
50-Watt DC/DC Converter; Dual Output
55JD1
DC Converter
NAI’s 55JD1 is a 50-Watt DC/DC Converter that accepts a +28 VDC input. This COTS unit provides full-power output, dual at a baseplate temperature of +100° C.
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Product
75-Watt DC/DC Converter; Single Output
55KS1
DC Converter
NAI’s 55KS1 is a 75-Watt DC/DC Converter that accepts a +28 VDC input. This COTS unit provides full-power, single output, at a baseplate temperature of +100° C.
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Unlisted Product
75-Watt DC/DC Converter; Triple Output
55KT1
DC Converter
NAI’s 55KT1 is a 75-Watt DC/DC Converter that accepts a +28 VDC input. This COTS unit provides full-power, triple output, at a baseplate temperature of +100° C.
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Product
75-Watt AC/DC Power Supply; Single Output
56KS1
Programmable Power Supply
NAI’s 56KS1 is a 75 Watt AC/DC Power Supply that accepts multiple AC inputs plus a +270 VDC input. This COTS unit provides full-power, single output, at a baseplate temperature of +85° C.
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Product
75-Watt AC/DC Power Supply; Triple Output
56KT1
Programmable Power Supply
NAI’s 56KT1 is a 75 Watt AC/DC Power Supply that accepts multiple AC inputs plus a +270 VDC input. This COTS unit provides full-power, triple output, at a baseplate temperature of +85° C.
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Product
150-Watt AC/DC Power Supply; Single Output
56MS1
Programmable Power Supply
NAI’s 56MS1 is a 150 Watt AC/DC Power Supply that accepts multiple AC inputs plus a +270 VDC input. This COTS unit provides full-power, single output, at a baseplate temperature of +85° C.
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Product
150-Watt AC/DC Power Supply; Dual Output
56MD1
Programmable Power Supply
NAI’s 56MD1 is a 150 Watt AC/DC Power Supply that accepts multiple AC inputs plus a +270 VDC input. This COTS unit provides full-power, dual output, at a baseplate temperature of +85° C.
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Product
725-Watt (270VDC input) DC/DC Converter, SOSA™ Aligned, 3U VPX
VPX57HS
DC Converter
NAI’s VPX57HS-31 is NAI's latest +270 VDC Input, VPX DC/DC Converter. The VPX57HS was developed in alignment of the SOSA™ Technical Standard and is capable of handling up to 725 Watts of output power. It plugs directly into a standard 3U VPX chassis with a VITA 62 1.0” power supply slot. This off-the-shelf solution for VITA 46.0 and VITA 65 systems is compatible with VPX specifications; supports all VITA standard I/O, signals, and features; and conforms to the VITA 62 mechanical and electrical requirements for modular power supplies.
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Product
725-Watt (28VDC input) DC/DC Converter, SOSA™ Aligned, 3U VPX
VPX55HS
DC Converter
NAI’s VPX55HS-31 is NAI's latest +28 VDC Input, VPX DC/DC Converter. The VPX55HS was developed in alignment of the SOSA™ Technical Standard and is capable of handling up to 725 Watts of output power. It plugs directly into a standard 3U VPX chassis with a VITA 62 1.0” power supply slot. This off-the-shelf solution for VITA 46.0 and VITA 65 systems is compatible with VPX specifications; supports all VITA standard I/O, signals, and features; and conforms to the VITA 62 mechanical and electrical requirements for modular power supplies.
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Product
DC/AC Sine Inverter
44KS5
Sine Inverter
- +28 VDC- Output 26 VAC @ 400Hz- 75 VA output power- MIL-1275D Compliant- Reverse Polarity Protection- Continuous Background Built-In-Test (BIT)- IPMI Monitoring of Voltages, Currents and Temperature- I2C communication- Temperature monitor- Nuclear Event Input
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Product
700-Watt AC/DC Power Supply
VPX56-6
Programmable Power Supply
NAI's VPX56-6 is a 700-Watt AC/DC Power Supply which accepts either a 3 115Vac L-N inputs or a +270Vdc input. It plugs directly into a standard 6U VPX chassis with a (VITA 62) 1.0" power supply slot. This off-the-shelf solution for VITA 46.0 and VITA 65 systems is compatible with VPX specifications; supports all VITA standard I/O, signals, and features; and conforms to the VITA 62 mechanical and electrical requirements for modular power supplies.
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Product
400 Watt DC/DC Converter, 3U VPX, Holdup Time
VPX68
DC Converter
NAI's VPX68 is a rugged and high-efficiency 400-Watt Output +28 VDC Input 3U VPX DC/DC converter designed for aerospace, defense, and industrial markets. It is an off-the-shelf power supply with optional integrated Holdup Time that plugs directly into a standard VITA 62 conduction cooled chassis. The power supply, engineered to meet harsh environmental conditions, includes continuous Background Built-In-Test (BIT), I2C communication, remote error sensing, and protection against Input transients, over-voltage, over-current, and short-circuits, ensuring reliable and consistent performance.
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Product
500 Watt DC/DC Converter, 3U VPX, VITA 86 High Altitude
VPX57C
DC Converter
NAI's VPX57C is a rugged and high-performance 500-Watt Output +270 VDC Input 3U VPX DC/DC converter designed for aerospace, defense, and industrial markets. It is an off-the-shelf power supply ideal for high altitude operations such as orbit launch vehicles or Fighter-Grade applications that plugs directly into a standard VPX conduction cooled chassis utilizing a VITA 86 connector. The power supply, engineered to meet extremely harsh environmental conditions, features continuous Background Built-In-Test (BIT), I2C communication, remote error sensing, and protection against Input transients, over-voltage, over-current, and short-circuits, ensuring reliable and consistent performance.
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Unlisted Product
Back End Holdup Unit
VPX55-31BEHU
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NAI’s VPX55-31BEHU is a 600 Watt DC/DC Holdup Module which plugs directly into a standard 3U VPX chassis with a VITA 62, 1.0” power supply slot. The VPX55-31BEHU stores energy from the VS1 (+12 VDC output) provided by an NAI DC/DC power supply and it can be used on the "backend" of a variety of NAI VPX power supplies to provide Holdup Time. This approach greatly minimizes EMI and Efficiency losses.
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Product
500 Watt AC/DC Power Line Conditioner, 3U VPX, Holdup Time
VPX56-3HU
Power Line Conditioner
NAI's VPX56-3HU is a rugged, high-performance 500-Watt Output +28 VDC Input 3U VPX AC/DC Power Line Conditioner designed for aerospace, defense, and industrial markets. This off-the-shelf power supply plugs directly into a standard VPX conduction cooled chassis and protects downstream DC-DC converters from MIL-STD-704 transients, low-voltage conditions and power interruptions, providing up to 50 milliseconds of holdup time at up to 500-Watts. Continuous Background Built-In-Test (BIT) and I2C communication are included.
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Product
VITA 62, 3U Test Fixture
TF-3U-7B041-1
Test Fixture
This Power Supply test fixture is being proposed as a tool for checking Injector / Ejector operation, proper alignment of the VITA 62 connector and proper alignment of both keys on a Single slot, 3U, VITA 62/SOSA power supply.
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Unlisted Product
100 Watt DC/DC Converter, Single Output
55LS1
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NAI's 55LS1 is a rugged, high-performance 100W DC/DC power supply designed for the aerospace, defense, and industrial markets. It accepts a +28 VDC input and provides a single full-power output at a baseplate temperature of +100°C. This COTS conduction-cooled converter uses NAVMAT component derating and offers remote error sensing and digital turn on/off (TTL). It also provides an option for ESS vibration testing and choice of output voltage and features protection against input transients, over-voltage, over-current, and short circuits to ensure reliable performance in harsh environments.
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Unlisted Product
25 Watt DC/DC Converter, Single Output
55GS1
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NAI's 55GS1 is a rugged, high-performance 25W DC/DC power supply designed for the aerospace, defense, and industrial markets. It accepts a +28 VDC input and provides a single full-power output at a baseplate temperature of +100°C. This COTS conduction-cooled converter uses NAVMAT component derating and offers remote error sensing and digital turn on/off (TTL). It also provides an option for ESS vibration testing and choice of output voltage and features protection against input transients, over-voltage, over-current, and short circuits to ensure reliable performance in harsh environments.
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Unlisted Product
72.5 Watt DC Power Line Conditioner, Holdup
44KS3-02
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NAI's 44KS3-02 is a high-performance 72.5W Power Line Conditioner designed to safeguard downstream DC/DC converters against transients, low voltage conditions, and power interruptions. With a holdup time feature, this rugged unit can prevent damage to your equipment, ensuring uninterrupted power supply. It accepts +28 VDC input and provides a steady output of either 22.5 to 30 VDC with holdup time or +16 VDC without holdup time to all downstream DC/DC converters. The 44KS3-02 is also conduction-cooled through the card edge/wedgelock and plugs directly into a 3U cPCI chassis, making it easy to install and operate.
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Unlisted Product
72.5 Watt DC Power Line Conditioner, Holdup
44KS3-02
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NAI's 44KS3-02 is a high-performance 72.5W Power Line Conditioner designed to safeguard downstream DC/DC converters against transients, low voltage conditions, and power interruptions. With a holdup time feature, this rugged unit can prevent damage to your equipment, ensuring uninterrupted power supply. It accepts +28 VDC input and provides a steady output of either 22.5 to 30 VDC with holdup time or +16 VDC without holdup time to all downstream DC/DC converters. The 44KS3-02 is also conduction-cooled through the card edge/wedgelock and plugs directly into a 3U cPCI chassis, making it easy to install and operate.




















































