General Electric Multilin 350-E-P5-G5-H-E-E-N-N-1E-D-N Protection Relay

350-E-P5-G5-H-E-E-N-N-1E-D-N Technical Specifications

Manufacturer	General Electric Multilin
Series	350 Feeder Protection System
Part Number	350-E-P5-G5-H-E-E-N-N-1E-D-N
# of I/O Connections	10 Inputs, 7 Outputs
Drawout Model Dimensions	H201.51 mm x W138.2 mm x D244.2 mm
Ground Currents	5 A ground current input
Humidity Standards	Operating up to 95% (non condensing) @ 55C
Operating Temperature	– 40C to 60C
Phase Currents	5 A 3-phase current inputs
Storage/Shipping Temperature	– 40C to 85C
Weight	40 lb

The 350-E-P5-G5-H-E-E-N-N-1E-D-N is a Feeder Protection System model featuring three-phase current input operating on five milliamperes.
Ground currents also operate on the same five milliamperes.
Important Note: Phase and ground currents must match and cannot be mixed (e.g., P1 and G5 ratings are incompatible, leading to issues).

The 1E code denotes a standard communication type (SN), which includes:
- Ethernet
- DNP3.0
- IEC60870-5-104
- Modbus TCP/IP protocols

This protection system offers a large number of programmable setpoints, making the relay exceptionally flexible.
Setpoints are grouped in Chapter Six of the “350 Feeder Protection System Instruction Guide” and include categories such as:
- Inputs and Outputs: Output relays, virtual inputs, contact inputs.
- System Setup: Flex curves A and B, user curve, power systems, current and voltage sensing.
- Protection Setpoints: Two setpoint groups and a VT fuse failure (all labeled on page two of Chapter Six).

Features a withdrawable small footprint, saving space and simplifying rewiring.
Equipped with a CPU that controls relay functions using two different Freescale 32-bit microprocessors.

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