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Allen Bradley 1326 Motors 1326AB-B720E-21-K7L

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

1326AB-B720E-21-K7L

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The Allen-Bradley 1326AB-B720E-21-K7L servo motor is an AC-powered servo motor from the Allen-Bradley/Rockwell Automation Bulletin 1326 series. Its AC voltage rating is 460 Volts, and it can operate at up to 3500 RPM at that voltage rating. The 1326AB-B720E-21-K7L AC servo motor is equipped with a DC holding brake. This holding brake has a coil with a voltage rating of 24 Volts DC, and the brake’s torque rating is 40 N-m or 140 pounds on an inch. The environmental protection rating of the 1326AB-B720E-21-K7L AC servo motor is IP 67 as long as it does not have any optional accessories connected to it.

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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-B720E-21-K7L

ManufacturerAllen Bradley
Product TypeServo Motor
Product Line1326 Motors
Part Number1326AB-B720E-21-K7L
Weight80.00 lbs (36.29 kg)
Voltage460/380V AC
Frame Diameter194 mm
Rated Motor Speed3500 rpm
Flange and Shaft SeriesIEC Metric Flange with Keyway
Motor Rated Torque30.9 Nm
Motor Rated Output6.8 kW
System Continuous Torque30.9 Nm
System Peak Stall Torque88.1 Nm
Standard Option41 Nm Holding Brake w/ 24V DC Coil with IP67 Environmental Rating
Product Lifecycle Status*Discontinued/Obsolete

* The Allen Bradley 1326AB-B720E-21-K7L has been discontinued by the manufacturer, however we specialize in obsolete parts and can likely still supply surplus and/or refurbished replacement 1326AB-B720E-21-K7L units instead of migration.

The Allen-Bradley 1326AB-B720E-21-K7L is a Servo Motor that belongs to the 1326AB Torque Plus Series. It is a three-phase, brushless motor with a 194mm millimeter frame diameter and a 215 millimeter bolt center). The voltage rating for this synchronous servo motor is 460 Volts AC. It is particularly engineered to increase constant torque rating and reduce motor length. It helps satisfy the strict demands of high-level motion systems. This efficient servo motor also comes with an IEC Metric Flange with Keyway feature. The 1326AB 460 Volts Torque Plus AC Servo Motors (including the 1326AB-B720E-21-K7L) are UL Listed insulation motors. They reach speeds of up to 7250 RPM and have a relentless torque capability from 2.3 to 53 N-m. The high-performance servo motors under this series are meant to be used with the Allen-Bradley 1394 Motion Control System, Ultra3000 Digital Servo Drives, and Kinetix 6000 Servo Drives. For an improved heat transfer, each of the servo motors features an extruded aluminum housing.

This series also has multiple feedback options including Rugged, brushless resolver and Absolute multi-turn and single-turn encoder. They also feature a three-phase sinusoidal wound stator field and a special flux profile permanent magnets. These features are used for smooth operation and increased servo response. The motor speed rating for 1326AB-B720E-21-K7L is 3500 RPM while its motor output rating is 6.8 kW. It has a 30.9 N-m system of continuous torque and 88.1 N-m system peak stall torque rating. This servo motor also has a holding brake with 24V DC coil and IP67 environmental rating (standard option). The 1326AB-B720E-21-K7L, as well as the other torque plus servo motors, can be installed vertically or at an angle with the shaft elevated or lowered.

Revision Part #Also known as
1326AB-B720E-21-K7L Ser A1326AB-B720E-21-K7L/A, Series A, Rev A
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