Description
- Model: 239-RTD-AN
- Brand: General Electric (GE)
- Series: GE 239 Motor Protection Relay Series
- Core Function: Collects RTD temperature signals for motor thermal protection
- Type: RTD Temperature Analog Expansion Module
- Key Specs: Pt100 RTD compatibility, multi-channel temperature sampling, 4-20mA analog output
- Supply Status: In stock
- Stock: Available
- Warranty: 1 year
- Ship From: China

239-RTD-AN
Product System Overview
The GE 239-RTD-AN is a professional RTD temperature expansion module designed for the GE 239 series motor protection relay system. Serving as a dedicated temperature signal acquisition accessory, it upgrades standard motor protection relays with high-precision thermal monitoring and analog output capabilities. This module perfectly integrates with GE 239 master protection units, expanding system functions from basic electrical protection to full-range motor thermal condition monitoring. It works cooperatively with field RTD sensors and upper industrial control platforms to build a complete motor temperature monitoring and over-temperature protection system. Widely deployed in power plants, petrochemical factories and manufacturing industries, it is an ideal component for motor protection system upgrading, thermal monitoring function expansion and aging accessory replacement projects.
Core Product Functions
This high-precision RTD expansion module focuses on real-time temperature signal collection, data conversion and analog signal transmission for industrial motor equipment. It supports standard Pt100 thermal resistance sensor signal acquisition, accurately capturing real-time temperature changes of motor stators, bearings and winding components. The module converts collected resistance signals into standard 4-20mA analog output signals, enabling seamless data recognition by DCS, SCADA and other upper monitoring systems. It assists the host protection relay in implementing precise thermal overload protection, judging motor overheating risks through real-time temperature data and triggering timely alarm or trip actions. In addition, it records long-term motor temperature operating data, providing reliable data support for equipment operation analysis, fault tracing and predictive maintenance, effectively avoiding motor burnout caused by overheating.

239-RTD-AN
Product Features & Technical Advantages
The GE 239-RTD-AN temperature expansion module features high measurement accuracy, excellent system compatibility and stable operational performance, meeting long-term thermal monitoring requirements of industrial motor protection systems. Adopting standard industrial RTD sampling technology, it delivers low temperature drift and high linearity, ensuring consistent and accurate long-term temperature measurement results. The universal 4-20mA analog output design offers strong compatibility with various industrial monitoring systems, simplifying system integration and debugging. Built-in signal filtering and anti-interference circuits effectively resist on-site electromagnetic clutter and power fluctuation interference, adapting to complex industrial working environments. Featuring compact modular design and plug-and-play installation, it can be quickly assembled and replaced on-site, greatly reducing equipment maintenance downtime and system renovation costs while improving the overall intelligence level of motor protection systems.
Industrial Application Scenarios
This high-reliability RTD temperature expansion module is widely applicable to industrial scenarios requiring high-precision motor thermal protection and temperature monitoring. It is mainly used in thermal power plants, petrochemical production bases, metallurgical industries, water treatment facilities and large automated manufacturing workshops. It provides professional temperature signal acquisition and data transmission support for various medium and large industrial motors, fan equipment and water pump units. As an important functional expansion accessory of the GE 239 motor protection system, it complements the system’s thermal monitoring capability, improves the comprehensiveness and accuracy of motor safety protection, and ensures safe, stable and long-term continuous operation of industrial motor equipment.

239-RTD-AN

