Online Demos and Tools

Neutral-Grounding-Resistor Monitor Set-Point Assistant

NGR Monitor Set-Point Assistant

This assistant provides set-point recommendations for Littelfuse Startco SE-325, SE-330, SE-330AU, and SE-330HV Neutral-Grounding-Resistor Monitors.


Open the NGR Monitor Set-Point Assistant

Motor and Feeder Protection Online Demos

Click to open the Virtual FPU-32 Feeder Protection Unit.

FPU-32 Demo

FPU-32 Feeder Protection Unit that allows the user to scroll through the menus.


Open the FPU-32 Demo
Click to open the Virtual FPU-32 Feeder Protection Unit.

MPS Demo

MPS-OPI Operator Interface that allows the user to scroll through the menus.


Open the Virtual MPS
Click to open the Virtual MPU-32 Motor Protection Unit.

MPU-32 Demo

MPU-32 Motor Protection Unit that allows the user to scroll through the menus.


Open the MPU-32 Demo
Click to open the MPU-32 Tutorial.

MPU-32 Tutorial

This tutorial covers basic topics in using the MPU-32 Motor Protection Unit, including how to enter set points, how to view metered information, and how to handle trips and alarms. Step-by-step instructions guide you through every button press as you accomplish the task at hand.


Open the MPU-32 Tutorial

Symmetrical Component Calculator

Click to open the MPU-32 Tutorial.

Symmetrical Component Calculator

This calculator finds the unbalance of three-phase input quantities using the positive- and negative-sequence component method. It can be used in conjunction with relay test equipment to verify the unbalance readings for the Littelfuse Startco FPU-32, MPU-32, and MPS.


Download Symmetrical Component Calculator v1.0