GENERAL ELECTRIC | SR469-P5-HI-A20 | Multilin 469 Motor Management Relay

The GE Multilin SR469-P5-HI-A20 is an advanced microprocessor-based relay designed for the protection, control, and management of medium-to-large-voltage AC motors. It offers comprehensive motor protection features, including dynamic thermal modeling, short-circuit protection, unbalance detection, and extensive metering capabilities to safeguard industrial motor assets against severe electrical faults and mechanical stress.

📦 Product Parameters & Datasheet

• 🏷️ Brand: GE Multilin (General Electric)
• 🔢 Model: SR469-P5-HI-A20 (Catalog Code breakdown: P5 = 5A Phase CT Secondary, HI = High Control Power Supply, A20 = 4-20mA Analog Outputs)
• 📚 Series: SR469 Motor Management Series
• ⚡ Product Name: Motor Protection and Management Relay
• 🌍 Origin: United States
• 🟢 Condition Status: Brand New / Factory Certified Surplus
• 📐 Dimensions: Standard draw-out case format (~177 mm x 235 mm x 257 mm)
• ⚖️ Weight: Approximately 5.2 kg
• 🌐 Country of Origin: United States
• 💡 Power Supply: High Range Control Power: 90 to 300 V DC / 70 to 265 V AC (48–62 Hz)

❓ Frequently Asked Questions (Q&A)

• Q1: What is the primary function of the GE SR469 relay?

  A1: It provides complete thermal-overload, short-circuit, ground-fault, and unbalance protection for medium-voltage industrial motors while logging comprehensive operational data and event records.

• Q2: What do the specific code suffixes (P5, HI, A20) mean?

  A2: ‘P5’ designates compatibility with 5A secondary current transformers, ‘HI’ specifies the wide-range AC/DC control power supply, and ‘A20’ denotes the inclusion of four programmable 4-20 mA analog outputs.

• Q3: Does this relay support digital communication with plant control systems?

  A3: Yes, it features built-in RS-232 and RS-485 serial ports supporting Modbus RTU protocol for seamless integration with SCADA and DCS architectures.

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