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Allen Bradley Miscellaneous Allen Bradley 74101-177-51

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74101-177-51

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The 74101-177-51 brake resistor drive board by Allen Bradley supports a nominal voltage of 460 volts AC and is rated for 500 horsepower. This unit operates efficiently at frequencies ranging from 50 to 60 Hertz, suitable for diverse applications.

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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 74101-177-51

ManufacturerAllen Bradley
Product TypeBrake Resistor Drive Board
Product LineMiscellaneous Allen Bradley
Part Number74101-177-51
UPC662453945101
Nominal Voltage460 Volts AC
Rated Horsepower500 horsepower
Operating Frequency50 to 60 Hertz
Vibration ResistanceUp to 5G in 11 milliseconds
Phase Rating3-phase
Number of Resistors4 resistors
Resistor TypeWirewound resistor
Mounting TypePanel mount
Shock Resistance10G in 11 milliseconds
Electrical Resistance10 ohms
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The brake resistor drive board, part number 74101-177-51 from Allen Bradley, delivers crucial performance in applications requiring reliable voltage control. Functioning at a nominal voltage of 460 volts AC, it is designed to handle a substantial rated power of 500 horsepower, making it well-suited for high-demand settings. This board operates within a frequency range of 50 to 60 Hertz, allowing for versatile integration into various systems.

It's configured for 3-phase electrical systems, enhancing its compatibility with complex machinery setups. The design incorporates four wirewound resistors, which feature an overall electrical resistance of 10 ohms, ensuring effective dissipation of brake energy. The unit is intended for panel mounting, facilitating straightforward installation in industrial environments.

The board boasts impressive resilience, rated for vibration resistance up to 5G over a duration of 11 milliseconds. Additionally, its shock resistance reaches 10G within the same timeframe, underscoring its robustness under challenging operating conditions. This allows it to function effectively in dynamic environments where mechanical stresses may occur.