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Allen Bradley 1326 Motors 1326AB-B420H-21-MK4

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

1326AB-B420H-21-MK4

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This Ferrite AC Servo Motor(460V/380V AC) comes with a 108 mm frame diameter (115 mm bolt center) and a 2 in. magnet stack length. Depending on the voltage, this unit's motor speed is 460V: 6000rpm / 380V: 5000rpm, and the flange and shaft type is a IEC metric flang with keyway. The feedback type is a Multi-turn high-resolution feedback and has a 8.1 N-m (72 lb-in.) Holding brake with 24V DC coil for 1326AB-B4 frame series.

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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 1326AB-B420H-21-MK4

ManufacturerAllen Bradley
Product TypeFerrite AC Servo Motor
Product Line1326 Motors
Part Number1326AB-B420H-21-MK4
Weight15.00 lbs (6.80 kg)
Voltage460 Volts AC, 380 Volts AC
Frame Series108-millimeter frame diameter (115-millimeter bolt center)
Motor Length2 inches
Motor Speed460 Volts AC: 6000 rpm, 380 Volts AC: 5000 rpm
Flange and Shaft SeriesIEC metric flange with a keyway
FeedbackMulti-turn high-resolution feedback
Standard Options8.1 N-m (72 pounds on an inch) Holding brake with 24 Volts DC coil for 1326AB-B4 frame series
Product Lifecycle Status*Discontinued/Obsolete

* The Allen Bradley 1326AB-B420H-21-MK4 has been discontinued by the manufacturer, however we specialize in obsolete parts and can likely still supply surplus and/or refurbished replacement 1326AB-B420H-21-MK4 units instead of migration.

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The Allen-Bradley 1326AB-B420H-21-MK4 servo motor is a 3-phase device with a sinusoidal wound stator field. This stator field helps in smooth operation when the servo motor is running at low speeds. This motor is made up of a stainless-steel body and it comes with an IP 67 protection rating. It is manufactured and designed to withstand harsh conditions. The device can attain a maximum speed rating of 5000/6000 rpm which depends upon the input AC voltage. Power is drawn from a 3-phase AC source. The input voltage range of the 1326AB-B420H-21-MK4 servo motor is 380 to 460 Volts AC. The servo motor comes with a continuous output power of 1.74 to 2.08 kilowatts. The maximum continuous stall torque of the servo motor is 4.75 N-m. The servo has a continuous RMS current of 5.6 Amps. A 72 N-m brake is equipped in the servo motor as a holding brake. The brake of the motor is a 24 Volts DC unit which uses 27.3 Ohm in the brake coil. This high-performance servo motor has been designed to meet modern industrial needs. It produces high levels of continuous output and optimal performance.

The 1326AB-B420H-21-MK4 servo motor is equipped with a digital feedback device which gathers real-time information about the motor performance and passes it to the control system. This servo motor uses the multi-turn high-resolution feedback device. The servo motor has the ability to run servo motor and other induction motor applications through a single drive platform. The 1326AB-B420H-21-MK4 servo motor uses serial communication for internal communication. It makes the servo motor easy to configure and operate. The servo motor is a small and power-dense device. Electromagnetic noise can affect the running performance of the motor and such noise should be removed from the installation site of the 1326AB-B420H-21-MK4 servo motor.

Revision Part #Also known as
1326AB-B420H-21-MK4 Ser A1326AB-B420H-21-MK4/A, Series A, Rev A
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