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Allen Bradley ControlLogix 1756-A4

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1756-A4

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The 1756-A4 chassis from Allen Bradley's ControlLogix series serves as a foundation for hosting Bulletin 1756 power supplies and I/O modules. With four available slots, it requires a power supply module for operation and is designed for reliable performance in various conditions.

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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-A4

ManufacturerAllen Bradley
Product TypeChassis
Product LineControlLogix
Part Number1756-A4
UPC612598129300
Weight1.38 lbs (0.62 kg)
Power Supply ModuleRequired
FunctionHosts Bulletin 1756 power supplies and I/O modules
Number of Slots4 Slots
Minimum Operating Temperature0 degrees Celsius
Maximum Operating Temperature60 degrees Celsius
Minimum Storage Temperature-40 degrees Celsius
Maximum Storage Temperature85 degrees Celsius
Non-Condensing Relative Humidity5 to 95%
Operating Shock30 G
Non-Operating Shock50 G
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The Allen Bradley 1756-A4 chassis is part of the ControlLogix series, designed to accommodate essential power supplies and input/output modules from Bulletin 1756. This unit consists of four slots, providing a structured environment for various automation applications.

For optimal functionality, a power supply module is required. It operates effectively within the temperature range of 0 degrees Celsius to 60 degrees Celsius during normal operations. When not in use, it can safely be stored at temperatures from -40 degrees Celsius to 85 degrees Celsius. The chassis is engineered to maintain performance under varying humidity levels, functioning in a non-condensing relative humidity range from 5% to 95%.

In terms of durability, the 1756-A4 can withstand operating shocks of up to 30 G and non-operating shocks of up to 50 G. This robustness ensures reliability in industrial settings where conditions may vary significantly. Overall, the 1756-A4 chassis is a critical component for establishing a functional ControlLogix environment.

Revision Part #Also known as
1756-A4 Ser A1756-A4/A, Series A, Rev A
1756-A4 Ser B1756-A4/B, Series B, Rev B
1756-A4 Ser C1756-A4/C, Series C, Rev C
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