Product Overview

The GE Multilin 469-P1-HI-A20 functions as a primary protective and management device for large-scale industrial motors. This relay executes complex thermal modeling and fault detection algorithms to prevent damage from overloads, phase imbalances, and ground faults. It integrates motor start sequencing with real-time diagnostic monitoring, providing operators with critical data through an enhanced 40-character LCD. We supply this module as 100% Brand New and Original, ready for deployment in high-stakes environments like refineries, mining sites, and chemical processing plants.

Part Number Breakdown

• 469: Base Motor Management Relay Series

• P1: Configured for 1 A Current Transformer (CT) secondaries

• HI: High-Voltage Control Power (90–300 VDC or 70–265 VAC range)

• A20: Analog output capability (standard 4–20 mA signals for control system integration)

Technical Specifications

Engineering Advantages

• Adaptive Thermal Modeling: The 469-P1-HI-A20 calculates motor temperature in real-time, accounting for both current and RTD inputs. This prevents premature tripping during legitimate starts while shielding the motor from insulation failure during genuine overload conditions.

• Seamless SCADA Communication: The "A20" analog output provides 4–20 mA signals directly to your PLC or SCADA system. This hardware-level integration allows remote monitoring of motor current, thermal capacity, or power without additional transducers.

• Wide Range Power Compatibility: The "HI" power supply variant eliminates the need for separate voltage step-down transformers in the control cabinet. It accepts a broad spectrum of high-voltage AC and DC inputs, simplifying wiring in utility and substation environments.

• Advanced Fault Forensics: The relay records specific fault data and event trends. This diagnostic capability allows engineering teams to perform "post-mortem" analysis of motor trips, identifying root causes like mechanical bearing wear or power supply harmonics before a catastrophic failure occurs.

FAQs

• Can I use the 469-P1-HI-A20 with 5 A Current Transformers?

  No. The "P1" designation indicates this specific unit only accepts 1 A CT secondaries. If your system uses 5 A CTs, you must utilize a different configuration of the 469 series to ensure accurate current measurement and protection.

• What is the benefit of the high-voltage (HI) power option?

  The "HI" option allows the relay to operate on standard station battery voltages (110V/125V/220V/250V DC) or standard AC mains (120V/240V). This flexibility makes it ideal for remote industrial sites where varied control voltages are common.

• Does the unit come with the display panel included?

  Yes, the 469-P1-HI-A20 includes the enhanced 40-character LCD and keypad interface as standard, allowing for local programming, setpoint adjustment, and real-time status viewing at the motor control center.