Digital guide
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GE 369-HI-R-B-0-0-H-E
Product Name: Multilin 369 Digital Three-Phase Motor Management Relay
Product Introduction: The 369 is a digital motor management relay that provides protection and monitoring for three-phase motors and their associated mechanical systems. It learns individual motor parameters and adapts to each application. The “HI” denotes high control power (50-300 VDC / 60-265 VAC), “R” denotes RTD inputs for temperature monitoring (bearing, stator, ambient, driven equipment), “B” denotes backspin detection, and “E” denotes enhanced faceplate with enhanced diagnostics.
Detailed content
Technical Specifications:
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Control Power: 50-300 VDC / 60-265 VAC
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RTD Inputs: Up to 12 RTDs (bearing, stator, ambient, driven equipment)
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Overload Curves: FlexCurve™ custom curve plus 15 standard curves
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Communications: 1 × RS232 front port, 3 × RS485 rear ports, Modbus RTU standard; Modbus/TCP optional
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Setpoint Entry: Front keypad or EnerVista 369 Setup software
Functional Features:
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Learns motor inrush current, cooling rates, and acceleration time to optimize protection
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Backspin detection for pump motor flow reversal
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Enhanced event recorder with security audit trail
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Motor start data logger and motor health report summary
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Self-adaptive protection tailored to individual motor parameters
Application Scenarios: Three-phase induction and synchronous motor protection in pumps, fans, compressors, and other industrial rotating equipment.
Installation Requirements: Mount in accordance with the device’s standard panel cutout. Verify control power matches the HI rating (50-300 VDC / 60-265 VAC). Connect RTD sensors for bearing/stator/ambient monitoring as configured.
Usage Precautions: Perform periodic manual trip testing to verify protection reliability. When modifying setpoints, use either the front keypad or EnerVista software and document all changes.
