Description
The GE Multilin 369 is a microprocessor-based motor management relay specifically designed for the protection, control, and diagnostics of medium and large AC motors. It delivers advanced thermal modeling, comprehensive system diagnostics, and precise metering features to protect critical industrial assets against damage from overloads, short circuits, and phase imbalances.
⚙️ Product Datasheet & Technical Parameters
- Product Model: 369-HI-R-B-F-E-0-E
- Manufacturer: GE Multilin (General Electric)
- Control Power Supply: High range (HI) 50-300V DC / 40-265V AC
- Dimensions: 29.6 cm (H) × 10.7 cm (W) × 20.5 cm (D)
- Weight: Approximately 4.5 kg (10 lbs)
- Operating Temperature: -40°C to +60°C
- Frequency Range: 48 Hz to 62 Hz
- Communication Interfaces: RS485 (Modbus RTU), Ethernet (Modbus TCP/IP)
- Mounting Type: Panel-mounted flame-retardant enclosure
- Country of Origin: United States / Canada
📖 Product Usage Instructions
- Mechanical Installation: Securely mount the relay unit onto a standard switchgear panel or control cabinet cutout, maintaining safe clearance for wiring connections and natural ventilation.
- Electrical Wiring: Connect control power, current transformers (CTs), and RTD sensors to the designated rear terminal blocks using proper shielded cabling to minimize electromagnetic interference.
- Software Configuration: Use the setup software via the front communication port or network link to input motor nameplate data, thermal model parameters, and trip curve settings.
- System Testing & Commissioning: Perform comprehensive secondary injection testing and verify trip outputs prior to placing the protected motor into active industrial service.
❓ Frequently Asked Questions (Q&A)
- Q: What is the primary purpose of the GE Multilin 369 relay?
A: It is engineered for complete protection, metering, and diagnostics of three-phase industrial AC motors.
- Q: How does the relay protect against motor overheating?
A: It uses an advanced dynamic thermal model that accounts for stator heating, cooling, and previous motor operating loads to calculate accurate thermal capacity.
- Q: What communication protocols are supported for SCADA integration?
A: It natively supports Modbus RTU via RS485 and Modbus TCP/IP over Ethernet options.
🔥 Recommended Other GE Multilin Series & Models
- GE Multilin 239: Economical motor protection relay for smaller industrial AC motors.
- GE Multilin 339: Compact motor protection system tailored for low and medium voltage applications.
- GE Multilin 345: Intuitive transformer protection and management system.
- GE Multilin 350: Feeder protection and control relay for industrial distribution networks.
- GE Multilin 469: Premium motor management relay designed for large, critical industrial motors.
- GE Multilin 489: Comprehensive generator management relay for synchronous and induction generators.
- GE Multilin 745: High-speed transformer protection relay with multi-processor reliability.
- GE Multilin 845: Next-generation advanced transformer protection platform.
- GE Multilin 850: Feeder protection system built for advanced automation and substation control.
- GE Multilin SR750: Feeder management relay offering complete protection, control, and metering.
