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GE 350-E-P5-G5-H-E-S-N-M-1E-D-N
Product Name: GE Multilin 350 Series Feeder Overcurrent Protection Relay
Introduction: The 350-E-P5-G5-H-E-S-N-M-1E-D-N is a microprocessor-based relay from the GE Multilin 350 series, used as primary or backup overcurrent protection for medium-voltage or low-voltage distribution feeders. It features a drawout case design. According to the last two characters in the order code, this model is not available with any type of harsh environmental coating.
Detailed content
Technical Specifications & Performance Parameters:
- Phase Current Inputs: 5 A (3-phase)
- Ground Current Inputs: 5 A
- Dimensions: H 7.93 in (201.51 mm) × W 6.62 in (138.2 mm) × D 9.62 in (244.2 mm)
- Weight: Net 2.9 kg (6.4 lbs); Gross 4.0 kg (8.6 lbs)
- Operating Temperature: -40 °C to +60 °C (-40 °F to +140 °F)
- Storage Temperature: -40 °C to +85 °C (-40 °F to +185 °F)
- Humidity: Up to 95% non-condensing at 55 °C (131 °F)
- Display: 4-line × 20-character LCD
- Front Panel: Non-programmable LEDs
- Communication: Front USB, Rear RS485, Modbus RTU
- Setup: Via EnerVista SR3 Setup Program
Working Principle: The relay processes current waveforms up to four times per cycle, performing harmonic, phasor, and transient analysis. Phasors eliminate harmonics and fault-current transients, resulting in a reliable overcurrent relay without overreach. Protection elements are processed four times to determine if timers have expired or pickups have occurred, using RMS-related voltage or current based on conjoining phasor magnitude—thus protection is unaffected by DC transients and harmonics.
Protection Functions (ANSI Device Numbers): Includes ANSI 79 (auto-reclose), ANSI 49 (thermal model), and a comprehensive list of other ANSI-standard protection functions detailed in the GE Multilin 350 Feeder Protection System Instruction Manual.
Application Scenarios: Primary or backup overcurrent protection for medium/low voltage distribution feeders in industrial and utility power systems.
Installation & Usage Notes: Drawout case design for easy maintenance. Configure via EnerVista SR3 setup program. Note that this specific model does not have harsh environmental coating; it is intended for standard indoor environments. Verify all wiring to the 5 A phase and ground current inputs.
