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Three-Phase Monitoring | SLA Series

Supplier: AMS Instrumentation & Calibration

The New SLA Series Three-Phase Monitoring Relay offers high-reliability and cost-effective protection from phase loss, under voltage, and phase reversal conditions that can contribute to premature equipment failure and downtime within motor control centres, critical motors and pumps.

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Features of SLA Series Three-Phase Monitoring:
  • Available in choice of several enclosure styles, as well as with selection of fixed, lock shaft, or screwdriver adjustment.
  • Series models are available with either SPDT (enclosure styles "A" and "N") or DPDR (style "E") output.
  • An onboard LED illuminates when all conditions are at "normal", for a quick and clear visual reference of system conditions. Most units also feature automatic reset (manual option available with "E" style enclosure).
UL listed versions are available upon request. NOTE: For UL Listed units with field wiring terminals, copper wire with 60°/75°C rating must be used for control circuitry connections. When a phase is lost whilst the motor is running, a condition known as regeneration occurs.
 
Here, a voltage is induced into the open phase that is nearly equal in magnitude to the normal phase-to-phase voltage. However, with the exception of lightly loaded motors, enough change is detected by the SLA Series to provide required protection when properly adjusted.
 
The cost-effectiveness and versatility of the SLA Series make it ideal for a variety of applications, including water and wastewater pumps and motors, sewage plant booster control stations, grinders, irrigation equipment, oil and gas machinery, machine tooling, conveyors, HVAC/R, elevators and escalators, processing equipment, construction and agricultural machinery and wind power turbine monitoring.
 
For more information please call or use the IndustrySearch email for a direct reply.

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