GE Multilin SR469 Motor Management Relay (469-P1-HI-A20)

Product Overview

 

The GE MULTILIN SR469 (469-P1-HI-A20) is a highly versatile motor management relay designed to provide protection, control, and monitoring for industrial motors. It is equipped with advanced features such as differential protection, ground fault detection, and voltage input measurement for reliable motor system management. The 469-P1-HI-A20 is specifically designed for motor applications, ensuring safety, reducing downtime, and enhancing operational efficiency.

Key Features

• Power Supply Options:
  • LO (Low): DC 20-60 V or AC 20-48 V at 48-62 Hz
  • HI (High): DC 90-300 V or AC 70-265 V at 48-62 Hz
• Analog Outputs: 4-20 mA (A20)
• Communication Ports: RS232 and RS485
• Input Ranges:
  • Phase Current: 1 to 5000 A (1A or 5A CT secondary)
  • Ground Current: 1 to 5000 A (1A or 5A CT secondary)
  • Differential Phase Current: 1 to 5000 A
  • Voltage Input: 1.00 to 150.00:1 VT ratio
  • RTD Inputs: 3-wire (Type Pt, Ni, Cu)
  • Analog Inputs: 0-1mA, 0-20mA, or 4-20mA
• Digital Inputs: 9 opto-isolated inputs for dry contacts or open collector NPN transistor
• Trickle Current Supervision: Applicable voltage from 20 to 300 V DC / AC, trickle current of 2 to 5 mA

Protection and Monitoring Features

• Motor Protection: Differential protection, overcurrent, ground fault, and phase fault detection.
• Phase Current: Accurate measurement with <0.2 VA burden at rated load and a withstand of 1 second at 80x rated current.
• Ground Fault Detection: For high-resistance grounded systems, ensuring sensitive fault detection.
• Differential Protection: Configurable differential protection for phase currents with high accuracy.
• RTD Supervision: Monitors temperature through RTDs (100W Platinum, 100W Nickel, 120W Nickel, 10W Copper).
• Communication Protocols: Supports Modbus® RTU, RS485, and RS232 communications for seamless integration into existing industrial networks.

Specifications

• Power Supply:
  • LO: DC 20 to 60 V DC or AC 20 to 48 V AC
  • HI: DC 90 to 300 V DC or AC 70 to 265 V AC
  • Power consumption: 45 VA (max), 25 VA (typical)
  • Proper operation time without supply voltage: 30 ms
• Inputs:
  • Phase Current (CT Primary): 1 to 5000 A
  • Ground Current: 1 to 5000 A (setpoint)
  • Voltage Input (VT Ratio): 1.00 to 150.00:1 (up to 273V AC full scale)
  • RTD Inputs: –50 to +250°C (Pt, Ni, Cu types)
  • Analog Inputs: 0-1mA, 0-20mA, 4-20mA
• Accuracy:
  • CT Accuracy: ±0.5% for phase and differential current
  • Voltage Input Accuracy: ±0.5% of full scale
  • RTD Accuracy: ±2°C
• Communication:
  • RS232 (non-isolated) and RS485 (isolated) ports
  • Baud rates: 300, 1200, 2400, 4800, 9600, 19200
  • Protocol: Modbus® RTU / Half Duplex

Included Software

• 469PC Software: Free with each relay, providing:
  • DEMO Panel for simulation
  • SR 19-1/2 Panels for control
  • SCI Module for system integration
  • Phase CT Setup and Mounting Collars
• Optional Accessories:
  • Metal Carry Case for transport
  • Mounting Kits for flexible installation
  • RS232 to RS485 Converter Box for harsh industrial environments

Applications

The SR469 Motor Management Relay is ideal for protecting industrial motors, ensuring optimal performance in systems that require continuous monitoring and protection. It is especially useful in high-voltage systems, where reliable and accurate motor protection is crucial to prevent damage and maintain operational continuity.

Mounting and Dimensions

• Mounting Options: Designed for standard industrial panels with options for single and dual cutouts.
• Optional Collar Kits: For reducing depth in shallow switchgear installations (1″ or 3″ collar options).

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Contact Us

• Phone: +86-15915488782
• Email: uma@meloauto.com
• WhatsApp: +8615915488782
• Business Hours: 24/7 service
• Address: Unit 601, Powerlong International Center, No. 1599 Luling Road, Siming District, Xiamen City, Fujian, China

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