Is the Allen-Bradley 1756-A4 new or used?

We offer the 1756-A4 in multiple conditions, from unused surplus to professionally reconditioned units. Every option is sourced and verified independently and covered by our 2-year replacement warranty.

What is the Allen-Bradley 1756-A4?

The 1756-A4 is an Allen-Bradley ControlLogix 1756 Chassis.

How fast does the 1756-A4 ship?

In-stock orders for the 1756-A4 ship the same day when placed before our daily cutoff. Expedited and same-day air options are available if you are facing downtime, with no rush fees. Our team is based in Raleigh, North Carolina.

Brand	Allen-Bradley
Slots	4
Series	ControlLogix
Weight	1.7 pounds (0.75 kilograms)
Mounting	Horizontal
Enclosure	Open
Dimensions	20 x 20 x 8 inches
Module Type	Chassis
Manufacturer	Rockwell Automation
No. of Slots	Four (4)
Available Series	Series A, B, C
Configuration software	RSLogix 5000; Studio 5000 Logix Designer
Part Number/Catalog No.	1756-A4
Power Dissipation (Max)	4 Watts
Backplane Current (5 Volts DC)	10 amps
Backplane Current (24 Volts DC)	2.8 Amps

Allen-Bradley

1756-A4

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PLCs ControlLogix 1756

The Allen-Bradley 1756-A4 is a compact, 4-slot ControlLogix chassis from Rockwell Automation designed for modular system configurations. With a power dissipation of 4 Watts, and supporting both horizontal mounting and open enclosures, this durable unit is essential for managing DC currents up to 10 amps at 5 volts, and 2.8 amps at 24 volts. Configuration is facilitated through RSLogix 5000 or Studio 5000 software, offering reliable system integration in industrial settings.

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Overview of the Allen-Bradley 1756-A4

The Allen-Bradley 1756-A4 is part of the ControlLogix series of chassis, which provides a robust platform for the modular and scalable hardware of the Allen-Bradley ControlLogix system. This particular model contains four slots to hold various modules including processors, power supplies, I/O (Input/Output) modules, and communication modules. The flexibility of the 1756-A4 allows for a variety of applications, ensuring seamless integration depending on the specific automation needs.

Construction and Design

Designed to withstand industrial environments, the 1756-A4 chassis is built with a sturdy construction featuring vibration resistance and an operating temperature range that successfully accommodates difficult industrial settings. The module slots are connected to a backplane that facilitates high-speed communication among the installed modules, maintaining efficient system performance even in complex applications.

Compatibility and Integration

The Allen-Bradley 1756-A4 is compatible with a wide array of ControlLogix modules. It ensures seamless integration with Rockwell Automation's Logix5000 family of controller products, and supports redundancy capabilities when equipped with appropriate modules. The open architecture of the ControlLogix system offers a flexible and interoperable environment for users to expand their control systems as their operational demands grow.

Installation and Maintenance

Featuring a user-friendly design, the 1756-A4 chassis simplifies both installation and maintenance processes. Modules can easily be inserted or removed without the need for tools, and the 'hot swap' capability allows for module replacement without powering down the entire system. This minimizes downtime and allows for quick troubleshooting and maintenance, improving overall efficiency and productivity of industrial systems.

Specifications and Performance

The 1756-A4 has specific technical specifications that allow it to perform effectively in a wide range of applications. It operates at a voltage range typically between 5.1 and 24 Volts DC and features a backplane current rating to match its power requirements. The chassis is designed with important safety and reliability measures, including a battery-backed real-time clock and various certifications like CE, CSA, and UL, making it suitable for deployment internationally.