GE 369-LO-0-M-0-0-0-E Motor Protection Relay

Technical Specifications:

  • Control Power Input: 100-240 VAC (50/60 Hz) or 110-250 VDC
  • Current Input: 1 A or 5 A (secondary of current transformers)
  • Voltage Input: Not directly applicable (focuses on current-based protection)
  • Frequency Range: 45-65 Hz
  • Output Contacts: 4 programmable relay outputs (2 for tripping, 2 for alarms)
  • Digital Inputs: 2 optically isolated inputs for external control or status monitoring
  • Operating Temperature: -20°C to +60°C
Category:
Description
  • Storage Temperature: -40°C to +85°C
  • Humidity Tolerance: 5% to 95% RH (non-condensing)
  • Enclosure Rating: IP20 (indoor use)
  • Mounting: DIN rail or panel-mounted
  • Communication: Optional RS-485 or RS-232 for integration with monitoring systems
  • Display: Basic LED indicators for status and alarm conditions

Functional Characteristics:

  • Core Motor Protection:
    • Overcurrent Protection: Detects and trips on excessive current draw with adjustable pickup and time delay settings.
    • Overload Protection: Provides thermal overload protection with inverse-time or definite-time characteristics to prevent motor damage due to prolonged overcurrent conditions.
    • Phase Loss Protection: Monitors for loss of one or more phases and trips the motor to avoid single-phasing damage.
    • Phase Reversal Protection: Detects incorrect phase sequence and prevents motor operation in reverse rotation.
  • Simplified Configuration:
    • Features a straightforward setup process with DIP switches or front-panel programming for basic protection parameters.
  • Compact Design:
    • Space-saving form factor ideal for applications with limited panel space.
  • Cost-Effective Solution:
    • Provides essential protection functions without the complexity of advanced metering or communication features, making it suitable for budget-conscious applications.
  • High Reliability:
    • Built with durable components to withstand harsh industrial environments.

Application Scenarios:

  • General Industrial Applications:
    • Protects motors in conveyor systems, pumps, fans, and compressors where basic protection is sufficient.
  • Commercial Buildings:
    • Used in HVAC systems to safeguard motors in air handlers, chillers, and cooling towers.
  • Water and Wastewater Treatment:
    • Ensures reliable operation of motors in pumps and aerators.
  • Light Manufacturing:
    • Provides protection for motors in small-scale production equipment and machinery.
  • Agricultural Applications:
    • Safeguards motors in irrigation pumps, grain handling systems, and ventilation equipment.
  • OEM Equipment:
    • Integrated into original equipment manufacturer (OEM) products requiring motor protection without advanced features.
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