369-C100 GE | Multilin 369 Relay, New Surplus

Description

Product Introduction

The GE 369-C100 is a Multilin 369 Motor Management Relay, designed for protection, control, and monitoring of medium and large industrial motors. This relay provides comprehensive motor protection including overload, short circuit, ground fault, phase unbalance, and stall protection, along with metering, diagnostics, and communication capabilities. The 369 series is widely used in pump, fan, compressor, and conveyor applications across industries including oil and gas, water treatment, mining, and manufacturing.

The Multilin 369 is one of GE’s most successful motor protection relays, with tens of thousands of units installed globally. The 369-C100 is a specific model variant within the 369 family. As GE has transitioned to newer platforms such as the 369E and Multilin 469, legacy 369 relays have been discontinued. For facilities still operating original 369 relays, sourcing verified replacement units is essential for maintaining motor protection and avoiding unplanned downtime.

Key Technical Specifications

Key Selling Points & Differentiators

• Comprehensive Motor Protection: Provides overload, short circuit, ground fault, unbalance, stall, and jam protection in a single relay. Reduces the need for multiple discrete protection devices.
• Legacy System Support: Direct replacement for original GE Multilin 369 relays. No configuration changes required if replacing with the same model and using the same settings file.
• User-Friendly Interface: Backlit LCD and keypad allow local monitoring and configuration without requiring a laptop or software.
• Communications Capability: RS-485 Modbus RTU port enables integration with PLCs, DCS, and SCADA systems for remote monitoring, control, and data logging.
• Authenticity Guarantee: Each unit undergoes visual inspection for GE Multilin OEM markings, serial number traceability, and PCB integrity. We test every relay before shipping.

Frequently Asked Questions (FAQ)

Q: What is the difference between the 369-C100 and other 369 models?
The 369 series offers multiple model variations based on:

• Power supply: 24 V DC, 48 V DC, 120 V AC, 240 V AC
• Voltage input: Phase voltage (VT) or no voltage input
• I/O configuration: Number of digital inputs and relay outputs
• Communication: Modbus RTU or Profibus

The 369-C100 is a specific configuration. To verify if this is the correct replacement for your application, check your existing relay’s label or contact our technical team.

Q: Is this relay discontinued?
Yes. GE Multilin has discontinued the original 369 series in favor of the 369E and 469 platforms. The 369-C100 is no longer in active production. Availability is limited to new surplus and tested used inventory. For systems still using the original 369, we recommend securing spares while stock remains available.

Q: Can I replace a failed 369-C100 with a 369E or 469?
Yes, but with engineering effort. The 369E is the direct successor to the 369 and can be configured to emulate the original 369 settings. However, physical dimensions, wiring connections, and communication setups may differ. If you are replacing a failed relay, we recommend using the same model (369-C100) to avoid modifications to the panel and wiring.

Q: How do I configure this relay?
Configuration is done through the front panel keypad and LCD. You can also use GE’s EnerVista software (available for free from GE) to configure the relay via the RS-485 port. Settings include:

• Motor full load current (FLA)
• CT ratio
• Protection element setpoints
• Trip and alarm delays
• Communication parameters

If you have an existing 369, we recommend retrieving the settings before replacement. The settings can be downloaded using EnerVista or manually recorded from the front panel.

Q: Can I use this relay on any motor size?
Yes. The 369 can be configured for motors ranging from fractional horsepower to thousands of horsepower. The key is selecting the correct CT ratio and setting the full load current (FLA) appropriately. The relay accepts CT secondaries of 1 A or 5 A, covering most industrial applications.

Q: Does this relay require external current transformers?
Yes. The 369 requires three phase current transformers (CTs) for motor current sensing. The CTs must be selected based on the motor’s full load current. The relay does not include CTs; they are installed separately in the motor circuit.

Q: What testing do you perform before shipping?
We test every 369-C100 before shipping. Our test procedure includes:

• Visual inspection for physical damage and display integrity
• Power supply verification
• LCD and keypad functionality
• Input and output channel testing
• Communication port verification (Modbus)
• Calibration verification with precision current sources
• 24-hour continuous power-on soak test

A test report with channel test results is included with each shipment.

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