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Allen Bradley ControlLogix 1756-L81ESK

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

1756-L81ESK

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The 1756-L81ESK controller, part of the Allen Bradley ControlLogix series, is designed for enhanced automation control. This unit features robust communication options, including EtherNet and USB, along with a memory allocation of 3 MB standard memory and 1.5 MB safety memory.

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Ships from Raleigh, NC
2 Year DO Supply Warranty
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 1756-L81ESK

ManufacturerAllen Bradley
Product TypeController
Product LineControlLogix
Part Number1756-L81ESK
Weight1.00 lbs (0.45 kg)
UPC889508112398
CommunicationEtherNet, USB
Standard Memory3 MB
Safety Memory1.5 MB
Display4-character alphanumeric
Conformal CoatingYes
Redundancy SupportYes
Current Draw @ 5 V1.2 Amps
Current Draw @ 1.2 V5 mA
Slots1 slot
Power Dissipation6.2 W
EnclosureOpen
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The Allen Bradley 1756-L81ESK, categorized as a controller, is part of the ControlLogix series. Efficient communication is assured through built-in EtherNet and USB ports, providing versatile connectivity options. With a standard memory capacity of 3 MB and an additional 1.5 MB dedicated to safety, this controller is engineered for comprehensive automation tasks.

The device has a compact alphanumeric display, consisting of four characters for easy visual feedback. To enhance reliability, a conformal coating is applied to protect the internal components from environmental factors. Additionally, it includes redundancy support, promoting continuous operation during critical tasks.

In terms of power requirements, the 1756-L81ESK exhibits a current draw of 1.2 amps at 5 volts, complemented by a minimal draw of 5 mA at 1.2 volts. It has room for one slot and a total power dissipation of 6.2 watts. This controller is configured in an open enclosure, ensuring adequate ventilation and space for installation.