111-INSIDER-P / 231-INSIDER-P Single-Phase Pump Monitor data sheet

PublishTime：2020-07-16

The Littelfuse 111-Insider-P single-phase products fit inside ¹⁄³ and ½ hp, 115 V control boxes and the 231-Insider-P fits inside ¹⁄³, ½, ¾, and 1 hp, 230 V control boxes. Both models are designed to protect single-phase pumps from dry-well, dead-head, jammed impeller, rapid-cycle, overvoltage, and undervoltage conditions.
A calibration adjustment allows the Insider to be calibrated to your specific pumping applications, thereby 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 product deactivates its output relay and directly disconnects the pump motor. The unit then begins its user-selectable restart delay (dry-well recovery) timer. When the timer counts to zero or power is removed and reapplied, the unit reactivates its output relay and turns the pump back on. By leaving the restart delay knob in the reset position, the unit will operate in manual reset mode.
The Insider communicates with a hand-held diagnostics tool called the Informer (sold separately). The Informer displays parameters including calibration points, trip points, run time and last faults. An IR Kit-12 (12” fiber optic kit) is included with each Insider, allowing the Informer to access these parameters even when the Insider is enclosed in a control box. This is valuable for troubleshooting the pump while it is running.

Brand of Product：	Littelfuse
Part#：	111-INSIDER-P 、 231-INSIDER-P More Part#
Product Category：	Protection Relays 、 Single-Phase Pump Monitor More
Application：	More
Data Type：	Datasheet More
Safety & Environment Standards：	UL 508 、 cURus More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	042619
Version Number：	Rev: 2-C-042619
Data Encoding：
Data Size：	571 KB

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