ATC Diversified SLU-100-ASA 3-Phase Universal Phase Monitoring Relay - Plug-in

Call for Price

The ATC Diversified SLU-100 series is a family of universal monitor relays, designed to provide cost-effective protection against premature equipment failure or downtime caused by voltage faults or untimely outages on three-phase systems (Delta and Wye). They are designed to support those systems typically found in motor control centers or other critical motor and pump monitoring applications.

Designed for the convenience of electricians, maintenance managers and engineers, the SLU-100 series monitors up to 480 VAC, with easy adjustment capabilities on a single relay for voltage, imbalance percentage and fault delay time and restart delay requirements. These capabilities allow for high-reliability protection against unbalanced voltages or single phasing, regardless of any regenerative voltages which may be present in the system.


  • Monitors up to 480 VAC
  • 8-Pin plug-in Mounting
  • Automatic or Manual reset
  • LED fault
  • Adjustments for:
  • Unbalance percentage
    Fault delay time
    Restart delay


  • Critical motor and pump monitoring
  • Water and wastewater plants
  • Sewage plants
  • Booster stations
  • Grinders
  • Irrigation equipment
  • Petrochemical
  • Machine Tool
  • Conveyors
  • HVAC/R
  • Elevators/escalators
  • Utilities
  • Processing equipment
  • Agricultural machinery and equipment
  • Renewable energy& wind power turbine monitoring
More Information
Display No
Features Automatic Reset, Manual Reset
Manufacturer ATC - Diversified
Measurement Over Voltage Sensing, Phase Loss Sensing, Phase Sequence Sensing, Phase Unbalance Sensing, Under Voltage Sensing
Type Phase Monitor
Additional Skus SLU100ASA
Copyright © Ram Meter, Inc | Instrumentation and Testing Equipment | Powered by Turtlehut™