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Allen Bradley Miscellaneous Allen Bradley 1720-A1221

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1720-A1221

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The 1720-A1221 is a solid-state PLC input module from Allen Bradley designed to accommodate four channels. With an open-type enclosure, it is rack-mountable and lightweight, weighing just 1.10 lbs.

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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 1720-A1221

ManufacturerAllen Bradley
Product TypePLC Input Module
Product LineMiscellaneous Allen Bradley
Part Number1720-A1221
Weight1.13 lbs (0.51 kg)
Number of Channels4 Channels
Module TypeSolid-State
Mounting StyleRack-Mountable
Enclosure TypeOpen Type
Minimum Operating Temperature0°C
Maximum Operating Temperature60 °C
Minimum Storage Temperature-40°C
Maximum Storage Temperature85 °C
Minimum Relative Humidity5% (Non-Condensing)
Maximum Relative Humidity95% (Non-Condensing)
Installation Altitude2000 m
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The Allen Bradley part number 1720-A1221 is a solid-state input module utilized in programmable logic controller (PLC) systems. Designed with four distinct channels, it facilitates precise signal processing for various applications. This module has a lightweight construction, weighing in at just 1.10 lbs, making installation straightforward.

Housed in an open type enclosure, this unit is tailored for rack mounting, allowing it to fit seamlessly into existing setups. It operates effectively within a specified temperature range that spans from 0°C to a maximum of 60°C, ensuring reliability in varied environments. Additionally, it withstands storage temperatures falling as low as -40°C, up to 85°C, making it suitable for diverse conditions.

The module is rated for use within a relative humidity range between 5% and 95% non-condensing, facilitating its application in environments where moisture levels fluctuate. Furthermore, it is designed for installation at altitudes of up to 2000 meters, contributing to its flexibility for installation in different geographical locations.