Description

The General Electric Multilin 369-HI-R-0-0-0-0-E is a high-performance motor management relay designed to provide comprehensive protection, monitoring, and diagnostics for medium-voltage and low-voltage motors. As part of the 369 series, this unit is engineered to prevent motor damage by monitoring critical parameters such as thermal capacity, current, and temperature, ensuring reliable operation in demanding industrial environments.

Features

• Advanced motor protection with enhanced diagnostics and an integrated enhanced faceplate for local monitoring.
• Supports 12 RTD inputs for precise temperature monitoring of motor windings and bearings.
• Wide input power range: 50-300 VDC or 60-265 VAC (50-60 Hz).
• Flexible current sensing supporting both 1 A and 5 A secondary phase current inputs.
• Ground current input frequency range of 20 to 100 Hz.

Technical Specifications

Installation Guidelines

• Ensure the device is powered down before performing any wiring or installation tasks.
• Mount the relay in a clean, dry, and vibration-free environment, ensuring adequate clearance for cooling airflow.
• Use shielded twisted-pair cables for communication and sensor inputs to minimize electromagnetic interference (EMI).
• Verify that all RTD connections are secure and properly configured for the specific sensor type (Pt, Ni, or Cu) to avoid measurement errors.
• Follow standard ESD (Electrostatic Discharge) handling procedures when accessing internal components or the fuse.
• Ensure the chassis is properly grounded to the control panel earth bus to maintain signal integrity and safety.

FAQ

What is the primary function of the 369-HI-R-0-0-0-0-E?

This relay is designed to protect motors from thermal overload, phase imbalance, and other electrical faults while providing real-time monitoring of motor temperature via 12 RTD inputs.

What types of RTD sensors are compatible with this relay?

The unit supports 3-wire 100 Ohm platinum, 100 Ohm nickel, 120 Ohm nickel, and 10 Ohm copper RTD sensors.

Is the internal fuse field-replaceable?

Yes, the unit utilizes a standard 3.15 A H 250 V (5 x 20 mm) fuse which can be accessed for maintenance if required.