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SymCom 520CP MotorSavers

SymCom’s Model 520CP MotorSaver is a fully programmable, microcontroller-based, current sensing device designed to monitor 3-phase pumps or systems with ramp up times of 4 seconds or less. Applications include submersible pumps, booster pumps, reverse osmosis systems, centrifugal pumps, vertical turbine pumps, oil well pumps, chemical pumps or other similar systems. Three external current transformers must be utilized in conjunction with the Model 520CP. The following 9 set points can be set and viewed from the 3-digit alphanumeric LED: over current trip point, undercurrent trip point, current unbalance trip point, trip delay, rapid cycle timer (RD1), overload restart delay (RD2), under load restart delay (RD3), number of restarts after an overload, and number of restarts after an under load fault. Last fault diagnostics is also viewable. When a harmful condition is detected, the 520CP’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 520CP deactivates its output relay in 0.5 seconds.

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