Application Notes

TitleSummaryRelated Links
AN-FUS-001

Fuse Facts and Numbering System

How to read the part numbers...
AN-FUS-002

Fuse Construction and Operation

Reviews the construction and operation of a fuse...
AN-FUS-003

Fuse Definitions

Reviews terminology associated with fuses...
AN-FUS-004

Fuse Descriptions

Reviews different types and classes of fuses...
AN-FUS-005

Fuse Let-Thru Current Tables

Provides tables detailing the let-thru currents...
AN-FUS-006

Welder Protection

Provides guidelines on using fuses to protect electric welders...
AN-FUS-007

Fuse Class 1 Division 2 Locations

Provides a table listing Mersen fuses that meet the "non-indicating, filled, current-limiting"...
AN-FUS-008

Reading A Time-Current Curve

Learn how to read a time-current curve...
AN-FUS-009

When To Change Your Fuses?

Provides instruction on three fuse conditions to pay attention to...
AN-FUS-010

Let Thru Current and I2t

Explores current-limitation terminology...
AN-FUS-011

Low Voltage Fuses for Motor Protection

Explains requirements of fuses used as motor branch circuit protection...
AN-FUS-012

Low Voltage Transformer Protection

Summarizes transformer overcurrent protection...
AN-FUS-013

Medium Voltage Motor Protection

Reviews information regarding R-rated fuses...
AN-FUS-014

Medium Voltage Transformer Protection

Explains inrush currents...
AN-FUS-015

Properties of Materials

A reference sheet for various properties of different materials used...
AN-FUS-016

Selectivity Between 240-480V Main and Branch Fuses

Defines coordination (selectivity, discrimination) in relation to fuses...
AN-FUS-017

Semiconductor Protection

Explains the relationship between solid state devices and the fuses used to protect them...
AN-FUS-018

Short Circuit Calculation (Quick Three Phase) How Many Fuses Open?

How many fuses typically open during a short circuit or an overload in a three-phase system...
AN-FUS-019

Application Information

Explains Short Circuit Ratings...
AN-FUS-020

Suggested fuse specifications

Guidelines and specifications for Mersen's Amp Trap 2000 family of fuses...
AN-FUS-021

Temperature De-rating

Formulas for the de-rating of fuse holders and low and medium voltage fuses...