The General Electric Multilin 469-P5-HI-A1-E-H is a comprehensive motor management relay designed to provide protection, control, and monitoring for medium and large AC motors. This unit is engineered to support industrial motor applications by integrating advanced protection algorithms with versatile communication and I/O capabilities.

Features

• Advanced motor protection including thermal modeling, stall, jam, and phase reversal detection.
• Equipped with 5 Amp phase CT secondaries for precise current sensing.
• Wide-range auxiliary power supply supporting 90-300 VDC or 70-265 VAC (48-62 Hz).
• Integrated 4-20 mA analog output for process control and monitoring.
• Nine opto-isolated digital inputs for flexible system integration.
• Support for multiple RTD types including 100 Ohm Platinum, 100/120 Ohm Nickel, and 10 Ohm Copper sensors.

Technical Specifications

Installation Guidelines

• Ensure the relay is mounted in a clean, dry, and vibration-free environment, typically within a control cabinet or panel.
• Verify that all CT connections are secure and properly grounded to prevent high-voltage buildup.
• Use shielded twisted-pair cabling for analog and communication signals to minimize EMI interference.
• Always disconnect power before inserting or removing the module from the rack or panel.
• Ensure the auxiliary power supply voltage matches the specified range (90-300 VDC or 70-265 VAC) to avoid internal component damage.

FAQ

What is the primary function of the 469-P5-HI-A1-E-H relay? This device is a digital motor management relay used to protect medium and large AC motors from electrical faults, thermal overload, and mechanical stress.

Can this relay handle different types of RTD sensors? Yes, the unit supports 100 Ohm Platinum (DIN 43760), 100 Ohm Nickel, 120 Ohm Nickel, and 10 Ohm Copper 3-wire RTD sensors.