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Allen Bradley 1336 PLUS II Drives 1336F-B250-AN-EN-L4E

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1336F-B250-AN-EN-L4E

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The 1336F-B250-AN-EN-L4E is a robust variable frequency AC drive developed by Allen Bradley, designed for demanding industrial applications. This unit operates within a 380-480 VAC three-phase voltage range and delivers an impressive output power of 187 kW, equating to 250 horsepower, ensuring it meets the requirements of high-torque scenarios.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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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 1336F-B250-AN-EN-L4E

ManufacturerAllen Bradley
Product TypeVariable Frequency AC Drive
Product Line1336 PLUS II Drives
Part Number1336F-B250-AN-EN-L4E
Weight360.00 lbs (163.29 kg)
Rated Voltage380-480 VAC Three-Phase Input
Output Power187 kW (250 HP) Constant Torque Rating
Maximum Output Current325 Amps at Full Load
Input Voltage Tolerance-10% to +10% of Nominal Voltage Range
Input Frequency Range48-62 Hz Operating Frequency
Efficiency97.5% Efficiency at Rated Current and Voltage
Overload Capacity150% Overload for 60 Seconds (Constant Torque Mode)
Control MethodologySine-Coded PWM with Adjustable Carrier Frequency (2-6 kHz Range)
Output Frequency Range0-400 Hz Adjustable Speed Output
DC Bus Voltage648 V DC Nominal Bus Voltage
Overvoltage ProtectionTrip Threshold: 570 V AC Input / 810 V DC Bus
Undervoltage ProtectionTrip Threshold: 280 V AC Input / 400 V DC Bus
Ambient Temperature Range0-50°C (32-122°F) for Open Enclosure (IP00)
Motor Control FeaturesSensorless Vector Control with 120:1 Speed Range & Adaptive Current Limiting
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The 1336F-B250-AN-EN-L4E, part of Allen Bradley's 1336 PLUS II Drive series, showcases advanced variable frequency drive technology engineering. This device is rated for a three-phase input voltage between 380 and 480 VAC, making it suitable for various industrial motor applications. It is capable of producing a maximum output power of 187 kW or 250 HP, which is essential for operations requiring consistent torque.

With a maximum output current of 325 Amps at full load, this drive effectively manages high power demands. It accommodates input voltage fluctuations within a tolerance range of -10% to +10% and operates efficiently across a 48 to 62 Hz frequency range. When utilized at rated current and voltage conditions, the drive achieves an impressive efficiency rating of 97.5%, contributing to energy savings and reliable performance.

The drive supports an adjustable output frequency from 0 to 400 Hz, allowing users to customize speed to their specifications. In constant torque mode, it offers an overload capacity of 150% for durations up to 60 seconds, making it capable of handling transient loads effectively. The control methodology employs sine-coded PWM, with a variable carrier frequency ranging from 2 to 6 kHz, optimizing performance for different motor types.

The unit features robust safety measures with a nominal DC bus voltage of 648 V and overvoltage protection that trips at a threshold of 570 V AC input or 810 V DC bus. Undervoltage protection activates below 280 V AC input or 400 V DC bus, ensuring operational stability. The drive operates efficiently within an ambient temperature range of 0 to 50°C (32 to 122°F) for open enclosures (IP00).

This drive incorporates advanced motor control features, including sensorless vector control, which provides a 120:1 speed range and adaptive current limiting functionality. These features enhance performance in varying operating conditions, making the 1336F-B250-AN-EN-L4E a dependable choice for demanding applications.