232 Insider Series - Littelfuse 232-Insider Pump Monitor Provides Exceptional System Protection

Series: 232 Insider
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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

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.

*The Informer: a hand-held diagnostic tool that uses an infrared receiver to access information that can be helpful for troubleshooting the system (sold separately).

Features

  • Proprietary microcontroller-based circuitry
  • Adjustable restart delay
  • Built-in IR communications link
  • LED indication

Product Literature

For Technical Questions

Call +1 800-832-3873 or email us at relays@littelfuse.com 

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)		Input Load Range (hp)Output
Form		Mounting MethodWeight (lbs/g)Overcurrent Trip ClassInput AC Line Frequency (Hz)Output Load Rating (VA)Overvoltage Trip Voltage (%)Power ConsumptionRestart Delay RangeTrip Delay RangeUnderload (%)Undervoltage Reset Voltage (%)StockSamples
232-INSIDER230 Vac1/3 - 1SPSTInside a Grundfos® control box0 Kg125% of calibration point50 / 60 (50 will increase all delay timers by 20%)1 hp @ 240 Vac (17 A max.)265 Vac≤5 WOver/Under Voltage: 2 s; All other faults: Manual; 2 - 225 mOvercurrent: 5 s; Dry-well: 2 sApprox. 80% of calibration point190 VacCheckOrder

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