Littelfuse, Inc.
How to Size a Neutral Grounding Resistor
One of the most critical decision when designing stable and safe electrical systems is system grounding. The key parameter that determines the neutral grounding resistor’s affect on the circuit is the let-through current. This video will focus on how to determine what level of let-through current to specify when designing a resistance-grounded system.
Littelfuse, Inc.
Learn how to calculate and increase the SCCR
This video looks at the four steps for calculating and increasing the SCCR using the UL 508A Supplement S-B. For more information, visit
littelfuse.com/sccr and download our white paper.
Littelfuse, Inc.
Littelfuse SPD2 Series of Type 2 Surge Protection Devices
Littelfuse SPD2 Series Type 2 Surge Protection Devices (SPDs) for branch
circuits safeguard components from transient overvoltage or power
surges by limiting the fault current to a load or the unit being
protected. They are designed to prevent equipment damage or downtime
caused by these power fluctuations.