The single-phase 232-Insider PumpSaver® fits inside ⅓, ½, ¾, and 1 hp, 230 V Grundfos control boxes. The PumpSaver 232-Insider is designed to protect single-phase pumps from dry-well, dead-head, jammed impellers, overvoltage, and undervoltage conditions. Typical applications include residential water wells, commercial water wells, irrigation wells, and golf course systems. A calibration adjustment allows the 232-Insider to be calibrated to your specific pumping application, reducing the possibility of false or nuisance tripping. A unique microcontroller-based voltage and current-sensing circuit constantly monitors the incoming power for fluctuations, overcurrent, and undercurrent. When an abnormality, such as loss of suction is detected, the 232-Insider deactivates its output relay and directly disconnects the pump motor. The 232-Insider then begins its user-selectable restart delay (dry-well recovery) timer. When the timer counts to zero or power is removed and reapplied, the 232-Insider reactivates its output relay and turns the pump back on. By leaving the restart delay knob in the reset position, the 232-Insider will operate in manual reset mode. An infrared LED communicates directly with a hand-held diagnostic tool called the Informer*. Note: The use of flow restrictors or unusually high head pressures at the time of calibration may interfere with the detection of dead-head conditions. *Note: 50 Hz will increase all delay timers by 20 % Pre-order 6-8 Weeks Functional Characteristics 1 Phase Line Voltage (±10 %) 230 V ac Load Range 1 ⁄3–1 hp Frequency 50*/60 Hz Operating Points Overload 125 % of Cal. Point Underload (dry well) 80 % or 87 % of calibrated run power High Voltage Reset Point 265 Low Voltage Reset Point 190 Trip Delay Time (Overload) 5 sec. Trip Delay Time (Dry well) 4 sec. Restart Delay Time Overvoltage/Undervoltage Delay 2 sec All other faults (dry-well rec. timer) Manual, 2–225 min. Output Contact Rating (SPST) 1 hp @ 240 V ac (17 amps max.) Weight 10 oz. Power Consumption 5 Watts (max.) Certification & Compliance cULus
