350‑E‑P0‑G0‑H‑E‑E‑C‑P‑SN‑N‑N | GE Multilin Feeder Protection Relay

GE Multilin 350‑E‑P0‑G0‑H‑E‑E‑C‑P‑SN‑N‑N Feeder Protection Relay – Product Description

Overview

The GE Multilin 350‑E‑P0‑G0‑H‑E‑E‑C‑P‑SN‑N‑N is a digital feeder protection relay designed for advanced protection, control, and monitoring of electrical feeders. Moreover, it provides integrated arc flash protection, high-speed diagnostics, and communication features, making it suitable for both utility substations and industrial power distribution systems. This model offers flexibility for feeders without internal CT inputs, allowing cost-effective deployment in various configurations.

Technical Specifications

Current Inputs:

• Phase CTs: Not included (P0 configuration)

• Ground CTs: Not included (G0 configuration)

Protection Functions:

• Overcurrent protection (phase/ground if external CTs are connected)

• Breaker failure protection

• Thermal overload protection

• Voltage and frequency monitoring (optional)

Control & Outputs:

• Electromechanical relay outputs for trip, alarm, and control functions (H)

• Breaker control logic with interlocks (C)

• Programmable logic and virtual inputs (P)

• Manual commands via front panel or SCADA

Communication Protocols:

• Dual Ethernet ports (E‑E)

• Modbus RTU/TCP

• DNP3.0

• IEC 60870‑5‑103

Recording & Diagnostics:

• Event recording with timestamp

• Waveform capture for fault analysis

• Preventive maintenance and self-diagnostics

Power Supply:

• Universal AC/DC supply (88–300 VDC / 70–265 VAC)

Environmental Ratings:

• Operating temperature: –40 °C to +70 °C

• Storage temperature: –40 °C to +85 °C

• EMC immunity per IEC 61000 standards

Physical Specifications:

• Compact panel-mount design

• weight: 3 kg

• Dimensions: 220 × 180 × 200 mm

FAQ

Q1: Does this relay include phase and ground CTs?
No, the P0-G0 configuration excludes internal CTs, but external CTs can be connected.

Q2: Can it communicate with SCADA systems?
Yes, it supports dual Ethernet, Modbus RTU/TCP, DNP3.0, and IEC 60870‑5‑103 protocols.

Q3: What is the operating temperature range?
The relay operates reliably between –40 °C and +70 °C.

Q4: Does it support arc flash protection?
Yes, integrated arc flash mitigation enhances operational safety.

Q5: Is event recording available?
Yes, the relay captures events with timestamps and waveform data for fault analysis.