Semiconductor Fuses Square Semiconductor Round Semiconductor Topics Overview

Semiconductor Fuses Square Semiconductor Round Semiconductor

Topics: • Overview of Semiconductor fuse offering • Part # assignments and structure • Recommendations of Round vs. Square • Competitive Overview (Bussmann, SIBA) • The High Speed fuse market 2

Semiconductor Fuse product offering (Round Body North American Style) A 15 QS – 150 VAC/VDC A 30 QS – 300 VAC/VDC A 50 QS – 500 VAC/VDC A 70 QS – 700 VAC/VDC A 100 X – 1000 VAC A 120 X – 1200 VAC A 150 X – 1500 VAC 3

Semiconductor Fuse product offering (Round Body North American Style) 4

Semiconductor Fuse Indication Options Round Body Semiconductor Fuses…. . …… -4 IL; -128 IL -4 TI; -128 TI before after 5

Semiconductor Fuse Indication Options Round Body Semiconductor Fuses…. . …… -4 TA; -128 TA 6

Semiconductor Fuse Indication Options Round Body Semiconductor Fuses…. . …… AOS (add on switch) AOS-Q (quick connect terminals) AOS-S (screw terminals) 7

Semiconductor Fuse Blocks / Holders 8

Semiconductor Fuse product offering (Square Body N. A. & European Style) 9

Semiconductor Fuse product offering (Square Body North American Style) 10

Semiconductor Fuse product offering (Square Body European Style) 11

Semiconductor Fuse product PSC Size Structure Size 3* (A) = 48 mm Size 7* (A) = 71 mm A 12

Semiconductor Fuse Indication Option Square Body Semiconductor Fuses…. … Micro-switch Indicator 13 MS 3 V 1 -5 (PSC 3*) MS 7 V 1 -5 (PSC 7*)

Semiconductor Fuse Square Body Semiconductor Fuses…. … Typical Semiconductor Fuse 14

Introduction to Square Body Fuse Technology Microswitch holder External indicator PSC LR Design Fuse elements Gaskets Cover plates Body Solid fill (inside the body) Screws Terminals 15

Introduction to Square Body Fuse Technology Microswitch holder External indicator PSC HV Design Gaskets Fuse elements Seating-plates Body Screws Solid fill (inside the body) 16 Terminals

Square Semiconductor Fuse Terminal options: 17

Square Semiconductor Fuse Terminals: TTI ; TTF D 08 A; D 11 A 18 LI; KI; LLI PA; PV

Square Semiconductor Fuse Blocks: 19

Square Semiconductor Fuse Blocks: 20

Semiconductor Fuse: IEC Classification • Class a. R = Semiconductor protection “IEC 60 -269 -4” • Class g. R = Semiconductor Full range “IEC 60 -269 -4” • European semiconductor fuses are classified as a. R but they are available with different melting characteristics: : UR (ultra rapid…limited to short circuit only) : g. R Rectifier protection (full range to 165% of rating) These options allow the end user to use a semiconductor Fuse that can protect against short circuit and over-loads. 21

Semiconductor Fuse: IEC Classification URD vs g. RB can provide full Range protection The u. R cannot 22

Recommendations: Square or Round? ? ? • For amp ratings above 400 A the square is smaller consistent size and may provide a cost savings to customer vs. that of a round body equal • The square semi’s are more globally accepted and should be recommended if equipment is sold and/or repaired outside the USA • Square ceramic fuses have a higher temperature capacity: : round GMG = max of 130 deg C : square ceramic = 150 – 200 deg C 23

Competition product offering Bussmann 170 M** 170 L** 24

Competition product offering Bussmann 25

Competition product offering Bussmann 26

Competition product offering SIBA Fuses 27

Competition product offering SIBA Fuses SIBA offers all 690/700 V Versions and 1250/1300 V versions 28

Market Trends for Semiconductor Fuses UPS: uninterruptable power supplies The high speed fuse offering is used within the rectifier and inverter unit of the UPS. The high Speed fuses are included to protect the rectifier diodes and limit damage to IGBT case rupture. (IGBT & Diode based) PSC & QS product lines 29

Market Trends for Semiconductor Fuses STS: Static Transfer Switch The high Speed fuse potential is substantial within this market because these systems are thyristor based and utilize inline high speed fuses for protection. Mainly PSC product line 30

Market Trends for Semiconductor Fuses Soft-Starters: Reduced Voltage Starters As with STS systems, Soft-Starters are thyristor based. The vast majority of soft-starters manufacturers have removed high Speed fuses and forced the end users to provide protection. Soft-Starters can be effectively protected by PSC & QS product. 31

Market Trends for Semiconductor Fuses Drives: variable frequency (PWM controlled) Currently the majority of Drives manufacturers have removed high speed fuses from Drives rated 150 HP and below. The opportunities are at the distributors and panel shops who assemble the control panel. 32