
( Brand: Allen-bradley ), ( Manufacturer Part Number: 1756-L85E ), ( Part Type: Servo Drive Amplifier ), ( Controller Platform: Controllogix )
The Allen-Bradley 1756-L85E contactor is a versatile and reliable electrical switching device designed for use in a variety of industrial automation applications. This contactor, which is part of Rockwell Automation's popular Allen-Bradley line, is rated for 200 amperes at 120/240 volts AC and 24 volts DC coil voltage. Its frame size is L, making it suitable for medium-duty applications.
The 1756-L85E contactor is constructed with a robust, copper-alloy contact system that provides long-lasting performance and high contact life.The contactor features a mechanical interlock design that ensures secure contact separation, minimizing the risk of arcing and reducing the potential for damage to the contacts or other components. This design also ensures reliable make-before-break contact action, which can help prevent motor or load damage during switching operations.
The contactor utilizes a solid-state coil monitoring feature, which allows for the early detection of coil failure, helping prevent motor burnout and unscheduled downtime.It also comes with a building- Grade NEMA 1 enclosure, providing protection against environmental conditions such as dust, water, and other contaminants, ensuring reliable operation in various industrial environments.
The Allen-Bradley 1756-L85E contactor is easy to install and integrate with other Allen-Bradley products and MTDFuse and molded case circuit breakers.It also comes with a clear, removable lever that allows for easy inspection and maintenance, minimizing the need for extensive disassembly of the contactor during routine maintenance. The contactor is RoHS compliant, and its UL and CSA approvals make it suitable for use in North America and other regions with similar electrical codes. Overall, the Allen-Bradley 1756-L85E contactor offers a combination of reliability, flexibility, and ease of use, making it an ideal choice for industrial applications that require reliable and frequent switching operations.
The Allen-Bradley Micrologix 1756-L85E is a programmable logic controller (PLC) manufactured by Rockwell Automation. Here are some potential pros and cons of buying this specific model:
Pros:1. Wide Temperature Operating Range: The Allen-Bradley Micrologix 1756-L85E can operate in temperatures ranging from -30 C to 70 C (-22 F to 158 F), making it suitable for various industrial environments, especially those with extreme temperatures.
2. Compact Size: Despite its powerful capabilities, this PLC has a compact size, which is beneficial for installations where space is limited. It also allows for easier transportation and handling.
3. Multiple I/O Points: The Micrologix 1756-L85E comes with a large number of input and output points, allowing for increased control and monitoring of industrial processes.
4. Easy-to-Use Software: The RSLogix 5000 software that comes with the Micrologix 1756-L85E is user-friendly and powerful, enabling programmers to create, edit, and debug programs efficiently.
5. Communication Capabilities: This PLC has various communication protocols like Modbus, EtherNet/IP, and DeviceNet, allowing seamless data transfer between different devices and control systems.
Cons:1. Limited Processor Power: Compared to more advanced PLC models, the Micrologix 1756-L85E has limited processor power, which can restrict its ability to handle complex control algorithms and large programs.
2. Limited Expansion Slots: Although the standard version has a decent number of I/O points, users might need additional expansion modules for further expansion. Expansion slots might be a limiting factor, depending on the specific requirements of their industrial application.
3. Lack of Display: The Micrologix 1756-L85E does not come with a built-in display; users need to purchase additional HMI devices for operator interface.
4. Limited Connectivity: While the Micrologix 1756-L85E supports a variety of communication protocols, it may not be sufficient for highly interconnected systems, as it lacks built-in WiFi and cellular connectivity.
Conclusion:The Allen-Bradley Micrologix 1756-L85E is an excellent choice for small to mid-sized applications that require basic automation capabilities, particularly those operating in extreme temperatures. Its compact size, wide temperature range, and extensive I/O points make it a suitable choice for numerous industries. However, it may not be the best option for complex control systems or interconnected applications that demand high processor power, built-in displays, or advanced communication capabilities.
Recommendation:If your industrial application requires a compact, cost-effective PLC with a wide temperature range and basic control functionality, the Allen-Bradley Micrologix 1756-L85E is an excellent choice. On the other hand, if your application calls for advanced functionality, high processor power, or intensive interconnectivity, it might be recommended to consider more powerful and expensive PLC models from Rockwell Automation or other manufacturers.
2022 Allen-Bradley 1756-L85E Factory Sealed Surplus NEW.