GE Multilin 469-P5-HI-A20-T | Motor Management Relay

Overview

The GE Multilin™ 469 Motor Protection System is a highly advanced relay designed to safeguard medium voltage motors in industrial applications. As a key member of the SR family of relays, it not only offers comprehensive protection and precise control, but also simplifies configuration with its Motor Settings Auto-Configurator. Moreover, with its customizable overload curves and single CT differential protection, this system enhances both motor performance and operational efficiency.

Furthermore, the 469 relay is designed with industry-leading draw-out construction, which significantly minimizes downtime during maintenance. Additionally, its versatile communication protocols allow seamless integration into both new and existing control networks, ensuring reliable motor management.

Key Benefits

Comprehensive Protection & Performance

To maximize motor safety and efficiency, the GE Multilin 469 offers a wide range of protection features. For instance:

• Voltage-dependent overload curves help reduce unnecessary shutdowns while improving response accuracy.
• Torque metering and protection prevent excessive mechanical stress, thereby extending motor life.
• Broken rotor bar detection ensures early identification of rotor-related faults, which enhances reliability.

Advanced Thermal Management

Since overheating is a leading cause of motor failure, effective thermal monitoring is crucial. To address this, the 469 relay includes:

• Multiple RTD inputs, which enable real-time stator temperature tracking and improve thermal protection.
• Adaptive thermal modeling, which dynamically adjusts protection settings based on actual operating conditions.

Reduced Downtime & Lower Maintenance Costs

Reducing operational disruptions is essential for efficiency. Therefore, this relay is designed to:

• Utilize a draw-out construction, making relay replacement fast and hassle-free.
• Provide event reports, waveform capture, and data logging, which facilitate quicker troubleshooting and predictive maintenance.

Comprehensive Monitoring & Diagnostics

Understanding system performance is key to preventing failures. Consequently, the GE Multilin 469 offers:

• Real-time temperature and analog I/O monitoring, ensuring precise tracking of operating conditions.
• Full metering capabilities, including demand and energy monitoring, to optimize resource allocation.
• Built-in simulation functions, allowing engineers to test settings before deployment, which reduces setup errors.

Seamless Communication & Integration

To ensure compatibility with various systems, the 469 relay supports multiple communication options. Specifically, it features:

• Standard RS232 & RS485 serial ports, ensuring easy integration with existing control systems.
• Optional Ethernet and DeviceNet ports, which enable remote monitoring and facilitate seamless network communication.

Field Upgradability & Environmental Protection

Future-proofing equipment is essential for long-term efficiency. As a result, the GE Multilin 469 includes:

• Field-upgradable firmware and settings, allowing updates without removing the relay from service.
• Optional conformal coating, which protects the relay from chemically corrosive or high-humidity environments.

Applications

Given its robust design and advanced features, the GE Multilin 469 is suitable for various motor protection applications, such as:

• Three-phase medium and large horsepower motors used in industrial environments.
• High inertia and two-speed motors, which require specialized protection mechanisms.
• Reduced-voltage start motors, ensuring smooth startup and operation.
• Driven equipment requiring precise motor control and fault detection, minimizing downtime and maintenance needs.

Ordering Information

Breakdown of Model Number:

Why Choose the GE Multilin 469?

By integrating advanced protection, comprehensive diagnostics, and seamless communication capabilities, the GE Multilin 469 Motor Protection System stands out as a cost-effective and highly reliable solution. Whether used for new installations or system upgrades, this relay provides the flexibility and performance needed to maintain safe, efficient, and continuous motor operations in demanding industrial environments.