Description
The GE Multilin 339 is an advanced, cost-effective motor protection system designed specifically for the management, protection, and control of small- and medium-sized industrial AC motors. Utilizing industry-leading thermal models, flexible communication protocols, and a user-friendly drawout design, it ensures high reliability and minimizes process downtime in demanding industrial environments.
📋 Product Datasheet & Technical Parameters
- 📌 Model Number: 339-L-P5-G5-H-R-S-N-P-1E-X-N
- 🏭 Manufacturer: GE Multilin
- ⚡ Power Supply Range: 110 to 250 V DC / 110 to 230 V AC
- 🔌 Power Consumption: 20 W / 36 VA
- 📏 Dimensions: 7.93 in (H) x 6.62 in (W) x 9.62 in (D)
- ⚖️ Weight: Approximately 5 kg (11 lbs)
- 🌍 Origin of Manufacture: North America / Canada
- 🌐 Communication Interfaces: Ethernet, Modbus TCP/IP, IEC 61850, DNP3.0
- 🌡️ Operating Temperature: -40°C to +60°C industrial standard
- 🛡️ Enclosure Protection: IP40 front panel, IP10 rear panel
📖 Product User Instructions
- ⚙️ Installation & Mounting: Mount the relay securely inside the switchgear panel or motor control center using the standard drawout housing, ensuring proper physical clearance for ventilation and safe wiring access.
- 🔌 Wiring & Connections: Connect the three-phase and ground current inputs carefully to the universal CT terminals, and link the auxiliary power supply according to the exact voltage rating specifications.
- 💻 Configuration & Setup: Utilize the front panel interface or software configuration tools like the Motor Settings Auto-Configurator to input motor nameplate data, thermal overload curves, and protection parameters.
- 🛠️ Testing & Maintenance: Perform regular checks using the integrated self-diagnostic system, LED/IO test modes, and review time-stamped event logs and waveform captures to ensure optimal operation.
❓ Frequently Asked Questions (Q&A)
- ❓ Q1: What types of motors are compatible with the GE 339 relay?
💡 A1: It is designed for asynchronous low-voltage and medium-voltage AC motors used in applications such as pumps, fans, compressors, and conveyors.
- ❓ Q2: Does the relay support remote monitoring and integration?
💡 A2: Yes, it features multiple communication protocols including Modbus TCP/IP and IEC 61850, allowing seamless integration into SCADA and DCS networks.
- ❓ Q3: How does the thermal model protect the motor?
💡 A3: It uses an advanced thermal model incorporating current unbalance biasing, RTD temperature feedback, and hot/safe stall ratios to prevent overheating and premature insulation failure.
🌟 Recommended Alternative Series and Models
- 🔹 GE Multilin 469 – Advanced Motor Protection Relay
- 🔹 GE Multilin 869 – High-Performance Motor Protection System
- 🔹 GE Multilin 350 – Feeder Protection System
- 🔹 GE Multilin 750 – Feeder Management Relay
- 🔹 GE Multilin 745 – Transformer Protection Relay
- 🔹 GE Multilin 845 – Transformer Protection System
- 🔹 GE Multilin 850 – Feeder Protection System
- 🔹 GE Multilin F650 – Feeder Protection and Control System
- 🔹 GE Multilin SR750 – Feeder Management Relay
- 🔹 GE Multilin MIF – Digital Feeder Protection Relay
