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Allen Bradley 1409 Arcing Ground Fault Detection 1409-DOBD

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1409-DOBD

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The 1409-DOBD arcing ground fault relay module has a maximum power output of 50 Horsepower and it operates on an input voltage of 460 Volts AC. This Allen-Bradley module is part of the Bulletin 1409 product line and it has a full load current rating of 65 Amps. This module features a NEMA starter size of 3 and a high current limiting of 293 Amps minimum and 370 Amps maximum.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 1409-DOBD

ManufacturerAllen Bradley
CategoryMotors
Product Line1409 Arcing Ground Fault Detection
Part Number1409-DOBD
Weight1.88 lbs (0.85 kg)
Input voltage460 Volts AC (maximum)
Supply voltage120 Volts AC, 60 Hertz
Power rating50 Horsepower (maximum)
Power input3 Volt-Amps
Full load current65 Amps
High current inhibit (minimum)293 Amps
High current inhibit (maximum)370 Amps
Response time50 milliseconds nominal plus the controller drop-out time
NEMA starter size3
Output contact rating30 Amps (make), 3 Amps (break)
Continuous carrying current5 Amps at 120 Volts
Operating temperature0 to 65 degrees Celsius (32 to 149 degrees Fahrenheit)
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The 1409-DOBD module is a Bulletin 1409 arcing ground fault relay module that is designed and manufactured by Allen-Bradley/Rockwell Automation. The module features a Class II design and it comes with high current inhibit feature. The ground fault relay module is a protective device that is used mostly with motor starters or contactors with the goal of interrupting low-level ground faults. The high-current limit feature provides protection against the opening of the controller in cases when the fault current exceeds the controller interrupting capacity. The 1409-DOBD relay module is combined with an arcing ground fault sensor to form a complete arcing ground fault system. The arcing ground fault relay module has a full functionality for various adjustments, detection, and output circuitry. The relay module has a toggle switch that is used for the operation of the ground fault detection system.

The 1409-DOBD arcing ground fault relay module has a power rating of 50 Horsepower maximum and a maximum voltage rating of 460 Volts AC. The module has a supply voltage of 120 Volts AC and an operating frequency of 60 Hertz. In addition to that, the unit has a power input rating of 3 Volt-Amps and a high current limit of 293 to 370 Amps. The 1409-DOBD ground fault relay module is intended for a NEMA starter size of 3 and it operates within a temperature range of 0 to 65 degrees (32 to 149 degrees Fahrenheit). The module features an output contact rating of 30 Amps (make) and 3 Amps (break) along with a continuous carrying current of 5 Amps at 120 Volts. The typical response time of the 1409-DOBD relay modules and other relay modules from the series is 50 milliseconds (nominal). The response time does not include the drop-out time of the controller.