469-P5-LO-A20-E | Reliance Electric Motor Management Relay

Description 

Technical Specifications 

Information About 469-P5-LO-A20-E

The 469-P5-LO-A20-E is a high-performance solid state overload relay designed for use in industrial applications, particularly in the category of contactors and starters. This advanced relay is engineered to provide robust protection and control for motors, ensuring optimal performance and preventing potential damage due to overload conditions. As a critical component in modern automation systems, the 469-P5-LO-A20-E offers precise monitoring and control capabilities, making it an essential tool for maintaining the reliability and efficiency of industrial machinery.

One of the key features of the 469-P5-LO-A20-E is its fully drawout case type, which includes automatic CT shorts. This design allows for easy installation and maintenance, providing a secure and reliable connection to the system’s current transformers (CTs). The fully drawout feature enhances safety and convenience, allowing operators to quickly remove and replace the relay without disrupting the overall system, thus minimizing downtime during maintenance procedures.

The control power range for this relay is versatile, supporting DC inputs from 24 to 60 VDC and AC inputs from 20 to 48 VAC at 48 to 62 Hz. This wide control power range ensures compatibility with various power supply configurations, making the 469-P5-LO-A20-E suitable for use in diverse industrial environments. The relay’s power consumption is optimized, with a maximum requirement of 45 VA and a typical consumption of 25 VA, ensuring efficient operation without imposing excessive demands on the power system.

The 469-P5-LO-A20-E is equipped with multiple RTD (Resistance Temperature Detector) inputs, supporting 3-wire configurations with 100 Ω Platinum (DIN 43760), 100 Ω Nickel, 120 Ω Nickel, and 10 Ω Copper sensors. These RTD inputs provide accurate temperature monitoring, enabling precise thermal protection for motors and other equipment. By continuously monitoring temperature, the relay can detect abnormal conditions early, triggering protective measures to prevent overheating and potential equipment failure.

Analog current inputs on the 469-P5-LO-A20-E offer flexibility in monitoring current levels, with support for 0 to 1 mA, 0 to 20 mA, or 4 to 20 mA input signals. This versatility allows the relay to be integrated with various sensors and control systems, providing detailed current monitoring that is critical for detecting overloads, underloads, or other abnormal operating conditions. The ability to monitor current with such precision ensures that the relay can respond quickly to protect equipment from damage.

Communication capabilities are another strong point of the 469-P5-LO-A20-E, featuring one RS232 port and two RS485 ports. These communication interfaces enable seamless integration with control systems and allow for remote monitoring and control of the relay. The RS232 and RS485 ports support various industrial communication protocols, facilitating easy integration into existing networks and enabling real-time data exchange between the relay and the control system. This connectivity enhances the relay’s functionality, allowing operators to monitor system performance, analyze data, and implement control strategies remotely.

In summary, the 469-P5-LO-A20-E solid state overload relay is a highly capable and versatile component designed to provide reliable protection and control for industrial motors. With its fully drawout case, wide control power range, comprehensive RTD and analog current input support, and advanced communication features, this relay is well-suited for use in demanding industrial environments. Its ability to monitor and protect equipment from overload conditions makes it an indispensable part of any industrial automation system, ensuring that operations run smoothly and efficiently while minimizing the risk of equipment failure.

Manufacturer information

Reliance Electric, a pioneering electrical equipment manufacturer, was founded in 1904. Acquired by Rockwell Automation, it specialized in motors, drives, and industrial automation solutions. Known for innovation, Reliance played a key role in advancing industrial technology.