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SymCom 520CS-115 MotorSaver


SymCom 520CS-115 is a fully programmable, microcontroller-based, current sensing device designed to monitor 3-phase pumps or systems with ramp up times of up to 50 seconds. Applications include submersible pumps, booster pumps, reverse osmosis systems, centrifugal pumps, vertical turbine pumps, oil well pumps, chemical pumps or other similar systems.

  • 520CS Protects motors from:
    • Overload or jammed impeller
    • Underload or dry well
    • Current unbalance
    • Current single phase
    • Reverse phase
    • Rapid cycling
  • 3-digit LED diagnostic display
  • Last fault diagnostics
  • Automatic or manual reset
  • Remote reset capability
  • UL listed
  • CSA approved
  • 5-year warranty
  • Made in USA

Three external current transformers must be utilized in conjunction with the Model 520CS. The following 9 set points can be set and viewed from the 3-digit alphanumeric LED: overcurrent trip point, undercurrent trip point, current unbalance trip point, trip delay, rapid cycle timer (RD1), overload restart delay (RD2), underload restart delay (RD3), number of restarts after a fault, and motor acceleration time. Last fault diagnostics is also viewable. When a harmful condition is detected, the 520CS’s output relay is deactivated after the specified trip delay. The output relay reactivates after the appropriate RD2 or RD3 timer has expired. If the pump is started on a single-phase or a reverse-phase condition, the Model 520CS deactivates its output relay in 0.5 seconds.

SymCom 520CS-115 MotorSaver
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Picture is for quick reference only
Manufacturer Part Number: 520CS-115
Stock # MS520CS-115

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