Littelfuse 232-Insider Product Description

The Model 232-Insider single-phase PumpSaver® fits inside ¹/3, 1/2, 3/4, and 1hp, 230 V Grundfos* control boxes manufactured prior to mid 2014. The PumpSaver® Model 232-Insider is a current monitor designed to protect single-phase pumps from dry-well, deadhead, jammed impeller, overvoltage and undervoltage conditions. Typical applications include residential water wells, commercial water wells, irrigation wells, and golf course systems.

Littelfuse 232-Insider Single-Phase PumpSaver Plus Typical Application

• Residential Water Wells
• Commercial Water Wells
• Irrigation Wells
• Golf Course Systems

Littelfuse 232-Insider Single-Phase PumpSaver Plus Technical Details

• Installs Directly in the Grundfos Pump Control Box
• 230 Volt, Single Phase
• 1/3 - 1 HP Pumps
• Protect Single Phase Pumps From the Following Conditions: Run Dry, Dead Head, Jammed Impeller, Rapid-Cycle, Overvoltage, and Undervoltage
• Calibrated for Specific Pumping Applications
• Automatic Timeout and Pump Restart
• Compatible With the Hand Held Tool Called the Informer
• Replaces 231-Insider
• Model 232-Insider Single-Phase PumpSaver® fits Inside ¹/3, 1/2, 3/4, and 1hp, 230 V Grundfos* Control Boxes Manufactured Prior to Mid 2014.

Littelfuse 232-Insider Single-Phase PumpSaver Plus Specifications

1 Phase Line Voltage (±10 %). . . . . . . 230 V ac

Load Range. . . . . . . 1/3 - 1HP

Frequency. . . . . . . 50**/60 Hz

Operating Points

• Overload . . . . . . . . . . . . . . . . . . 125% of Calibration 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 A max.)

Safety Marks

• Ul Recognized . . . . . . . . . . .UL 508
• CSA . . . . . . . . .C22.2 No.14
• Weight. . . . . . . . .10 oz.
• Power Consumption. . . . . . . . .5 Watts (max.)

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Littelfuse 232-Insider Single-Phase PumpSaver Plus Product Resources

Littelfuse 232-Insider Product Specifications

Littelfuse 232-Insider Installation Bulletin

Littelfuse 232-Insider Engineering Specifications