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Allen Bradley 1718 Ex I/O 1718-A20

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1718-A20

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The 1718-A20 module from Allen Bradley is designed specifically for I/O integration. It provides a dedicated 20-slot capacity within the 1718 Ex I/O series, suitable for Zone 1 installations.

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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 1718-A20

ManufacturerAllen Bradley
Product TypeModule Capacity
Product Line1718 Ex I/O
Part Number1718-A20
Weight5.00 lbs (2.27 kg)
Slots20 dedicated to I/O modules
Mounting CompatibilityZone 1
Backplane Voltage12 V DC
IP RatingIP20
Minimum Operating Temperature-20°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 Altitude1000 m
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The 1718-A20 module from Allen Bradley serves as a vital component in the 1718 Ex I/O series, focused on providing expansive capabilities for integrating input/output operations. This unit is structured to accommodate 20 dedicated slots for I/O modules, allowing for flexible configuration based on system requirements. Designed to be installed in Zone 1 environments, it ensures safe operation while adhering to critical electrical standards.

A notable feature of the 1718-A20 is its utilization of a 12 V DC backplane voltage, which is essential for stable and efficient communication within the system. Its enclosure is rated at IP20, indicating a basic level of protection against solid objects, though it is not suited for protection against liquids.

Temperature tolerance is an essential aspect of the 1718-A20’s design; it operates effectively in temperatures ranging from -20°C to +60°C, which suits a variety of operational conditions. Moreover, this module can be stored in harsher environments with storage temperatures from -40°C up to 85°C. Relative humidity during operation is acceptable between 5% and 95% without condensation, facilitating its use in different humidity scenarios.

Finally, the module design allows for installation at altitudes of up to 1000 meters, making it a versatile choice for applications in diverse locations. The combination of these specifications highlights its capability and reliability for industrial settings.