GE SR469-P1-HI-A20-T
GE SR469-P1-HI-A20-T - Image 2

GE SR469-P1-HI-A20-T

Product Introduction: The GE SR469-P1-HI-A20-T is a variant of the SR469 Motor Management Relay with the same protection and management functions as the SR469-P1-HI-A20-E, but with the “T” suffix denoting an enhanced display with integrated Ethernet 10Base-T connectivity. It is designed for medium-voltage motor protection where Ethernet communication is required for SCADA integration.

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Category: SKU: GE SR469-P1-HI-A20-T

Description

GE SR469-P1-HI-A20-T

Technical Specifications:

  • Series: GE Multilin SR469 Motor Management Relay
  • Phase CT Secondary: 1 A (P1)
  • Control Power: HI = 90–300 V DC, 70–265 V AC, 48–62 Hz
  • Analog Output: 4–20 mA (A20)
  • Display: Enhanced display with Ethernet 10Base-T (T)
  • Communication: RS-232 program port, RS-485, Ethernet 10Base-T
  • Ground CT Inputs: Two inputs
  • VT Input: Delta or wye configurations
  • Drawout Construction: Yes
  • Conformal Coating: No (standard environment)

Functional Features:

  • All protection and diagnostic features of the SR469 series
  • Integrated Ethernet 10Base-T port for direct network connectivity
  • Enhanced display with larger LCD for local diagnostics
  • EnerVista software integration via Ethernet or serial
  • Oscillography, event recording, and motor diagnostics
  • Sealable drawout handle for security

Application Scenarios:

  • Medium-voltage motor protection requiring Ethernet SCADA integration
  • Industrial plants with Ethernet-based monitoring networks
  • Power generation, steel, cement, and chemical industries
  • Applications needing remote access via Ethernet

Performance Parameters:

  • Same protection performance as SR469-P1-HI-A20-E
  • Ethernet 10Base-T enables higher-speed data exchange than serial-only variants
  • Comprehensive metering: A, V, W, var, VA, PF, Hz, Wh, varh, demand

Material and Structural Characteristics:

  • Drawout relay case with matching enclosure
  • Industrial-grade PCB with Ethernet interface circuitry
  • Front panel with enhanced LCD, status LEDs, keypad, and Ethernet connector
  • Rear terminal blocks for CT, VT, control power, and I/O

Working Principle: Identical to SR469-P1-HI-A20-E, with the addition of an Ethernet 10Base-T interface that enables the relay to communicate directly with SCADA/HMI systems over Ethernet, supporting faster data exchange and remote access compared to serial-only communication. Installation Requirements:

  • Install in a protection relay panel using the SR drawout case
  • Connect CTs, VTs, and ground CT per schematics
  • Wire control power (90–300 V DC or 70–265 V AC)
  • Connect Ethernet 10Base-T to the plant network
  • Configure IP address and setpoints using EnerVista software

Usage Notes:

  • Configure Ethernet IP parameters to match plant network
  • Verify network security settings to prevent unauthorized access
  • Apply same thermal model and K-factor considerations as other SR469 variants
  • Use the sealable drawout handle for security

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