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Allen Bradley MPL Servo Motors MPL-B420P-RK74AA

Product image is representative; revision or series may vary. Contact us to request a specific version.

MPL-B420P-RK74AA

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The Allen-Bradley MPL-B420P-RK74AA MPL series servo motor is a permanent magnet servo motor. It has a rated rotor speed of 5000 RPM. The environmental protection rating of the MPL-B420P-RK74AA servo motor is IP 50.

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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 MPL-B420P-RK74AA

ManufacturerAllen Bradley
Product TypeServo Motor
Product LineMPL Servo Motors
Part NumberMPL-B420P-RK74AA
Weight15.00 lbs (6.80 kg)
MountingFlange
Voltage400 Volts
ProtectionIP 50
Frame Size115 Millimeters
Rated Speed5000 RPM
Maximum Speed5000 RPM
FeedbackResolver
Holding BrakeYes
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The Allen-Bradley MPL-B420P-RK74AA servo motor is a MPL series premium permanent magnet servo motor. The voltage class of the winding on the MPL-B420P-RK74AA servo motor is 400 Volts AC. The motor frame size is 115 millimeters and the stack length of the permanent magnets in the rotor is 2 inches or 50.8 millimeters. The rated rotor speed of the MPL-B420P-RK74AA servo motor is 5000 RPM and the maximum rotor speed is also 5000 RPM. The feedback device on the motor is a resolver. The continuous stall torque rating of the motor is 4.74 N-m and the peak torque rating of the MPL-B420P-RK74AA servo motor is 13.5 N-m. MPL series servo motors are low inertia servo motors and the rotor inertia for the MPL-B420P-RK74AA servo motor is 0.00026 kilograms per square meter.

The weight of the Allen-Bradley MPL-B420P-RK74AA MPL series servo motor is approximately 4.3 kilograms or 9.4 pounds. The motor mounting flange complies with the IEC metric standards and it has free mounting holes. A holding brake is available on the motor as a standard feature. Specifications for the motor holding brake include 37 arc minutes of maximum backlash with the brake engaged, 10.2 N-m of holding torque, and a coil current range from 0.576 to 0.704 Amps at 24 Volts DC. The motor holding brake weighs approximately 6 kilograms. The motor shaft includes neither a shaft key nor a shaft seal. The power connector on the motor is a right-angle circular DIN connector that can be rotated 180 degrees in either direction. The ingress protection rating of the MPL-B420P-RK74AA servo motor is IP 50, which can be improved to IP 66 through the use of a shaft seal and sealed connectors.