270VDC Power Distribution Unit

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Product Overview

An Electronic Circuit Breaker Unit/Power Distribution Unit has power inputs from different sources and power outputs to feed the loads. The 28VDC Electronic Circuit Breaker Unit/Power Distribution Unit has voltage and current measurement units. It can also perform detailed tasks such as soft start, over-current protection, short circuit protection, sequential opening and energizing the desired loads for power saving according to working scenarios.

Each Electronic Circuit Breaker Unit/Power Distribution Unit is designed with fail-safe logic that provides a configuration that allows the utilization of input power to the appropriate loads, ensuring that power is retained on essential loads. It has a redundant design that allows the Electronic Circuit Breaker Unit/Power Distribution Unit to prevent single-point failures. Electronic Circuit Breaker Unit/Power Distribution Unit also utilizes WoW (Weight on Wheel) logic, extensive Built-In-Test capabilities and I2T logic.


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Configuration Abilities

• Overcurrent configuration for output channel

• Load shedding

• Sequential Opening

• I2T limits

• Soft Start Time

• Output Channel ON/OFF Control

• Overcurrent configuration for output channel

• Load shedding

• Sequential Opening

• I2T limits

• Soft Start Time

• Output Channel ON/OFF Control

Monitoring

• Load Current

• Input Voltage

• Output Voltage

• Each Channel Fault

• Temperature

• Load Current

• Input Voltage

• Output Voltage

• Each Channel Fault

• Temperature

Protections

• Short Circuit

• Overcurrent

• Overvoltage

• Under voltage

• I2T

• Short Circuit

• Overcurrent

• Overvoltage

• Under voltage

• I2T

• Power Distribution Unit

• Electronic Circuit Breakers

• Current and Voltage Monitoring

Interfaces


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Output Channels

8 Channel

(6 x 20A, 2x10A)

18 Channel

(3 x 10A, 15 x 20A)

Total Current50A120A
Discrete Inputs

3 x GROUND/OPEN

2 x 28VDC/OPEN

3 x GROUND/OPEN

2 x 28VDC/OPEN

Discrete Outputs

2 x GROUND/OPEN

1 x 28VDC/OPEN

2 x GROUND/OPEN

1 x 28VDC/OPEN

Communications

1 x Ethernet

1 x RS485

1 x Ethernet

1 x RS485

Physical AddressUp to 32 addressUp to 32 address

Electrical and Mechanical


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Input Voltage270VDC270VDC
ConnectorsMIL-DTL-38999 ConnectorsMIL-DTL-38999 Connectors
Dimension (L x W x H) (mm)275.6 mm x 294.63 mm x 127.2 mm392.08 mm x 294.63 mm x 127.2 mm
Weight (g)6 kg8.7 kg

 Enviromental

• Operating Temperature: -40°C to +55°C

• Storage Temperature: -40°C to +85°C

• Operating Altitude:  45,000ft

• Atmospheric Pressure: 7.2 kPa to 108.3 kPa

• RTCA/DO-254

• RTCA/DO-160G

• MIL-STD-810G

• MIL-STD-704F

Current Status

TRL 7/9

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