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Fuses and Fuse Blocks

In electronics and electrical engineering, a fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit. It essential component is a metal wire or strip that melts when too much current flows through it, thereby stopping or interrupting the current. It is a sacrificial device. The fuse blocks contain fuses rated at different amperage values depending upon the electrical device that it is protecting.

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AJT125 Mersen Ferraz Shawmut Fuse Time-Delay Class J 125 A 600V AC, Sold By Unit
AJT125 Mersen Ferraz Shawmut Fuse Time-Delay Class J 125 A 600V AC, Sold By Unit Sold out

AJT125 Mersen Ferraz Shawmut Fuse Time-Delay Class J 125 A / 600V AC

MERSEN
$135.00 USD - $135.00 USD
$135.00 USD
$135.00 USD - $135.00 USD
$135.00 USD
Out of stock
Pre Order

Product Information Sold By Unit Sub Brand: Amp-Trap 2000 Item Name: North American Power Fuse Type: Time-Delay Voltage Rating: 600 VAC Amperage R...

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$135.00 USD - $135.00 USD
$135.00 USD
$135.00 USD - $135.00 USD
$135.00 USD
Sold out
Mersen AJT45N Fuse Time-Delay 45A Class J 600V AC, Sold By Unit
Mersen AJT45N Fuse Time-Delay 45A Class J 600V AC, Sold By Unit

Mersen AJT45N Fuse Time-Delay 45A Class J 600V AC

MERSEN
$13.50 USD - $13.50 USD
$13.50 USD
$13.50 USD - $13.50 USD
$13.50 USD
Only 2 left!
Pre Order

Description Sold By Unit Fuse Amp-Trap 2000, Time-Delay, Class J, Visual Indicator, 200kA AC/100kA DC, 600V AC, 45 Amps

$13.50 USD - $13.50 USD
$13.50 USD
$13.50 USD - $13.50 USD
$13.50 USD
TRS15R Mersen Ferraz Shawmut Fuse 15 A, Time-Delay, Class RK5, Sold By Unit
TRS15R Mersen Ferraz Shawmut Fuse 15 A, Time-Delay, Class RK5, Sold By Unit Sold out

TRS15R Mersen Ferraz Shawmut Fuse 15 A, Class RK5, Time-Delay, 600V AC

MERSEN
$4.45 USD - $4.45 USD
$4.45 USD
$4.45 USD - $4.45 USD
$4.45 USD
Out of stock
Pre Order

Product Information Sold By Unit Body Material: Polyester Class: Class RK5 Contact Material: Copper Current Rating: 15 A Height: 13.66 Length: 32 ...

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$4.45 USD - $4.45 USD
$4.45 USD
$4.45 USD - $4.45 USD
$4.45 USD
Sold out
AJT30 Mersen Ferraz Shawmut Fuse 30A Time Delay Class J Sold By Unit, New
AJT30 Mersen Ferraz Shawmut Fuse 30A Time Delay Class J Sold By Unit, New Sold out

AJT30 Mersen Ferraz Shawmut Fuse 30A Time Delay Class J

MERSEN
$4.86 USD - $4.86 USD
$4.86 USD
$4.86 USD - $4.86 USD
$4.86 USD
Out of stock
Pre Order

Product Information Sold By Unit Body Material: Glass Class: Class J Current Rating: 30 A Series: Amp-Trap 2000 SmartSpot Series Speed: Time Lag V...

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$4.86 USD - $4.86 USD
$4.86 USD
$4.86 USD - $4.86 USD
$4.86 USD
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AJT60 Mersen Ferraz Shawmut Fuse Time Delay Class J 60A 600V AC Pack Of 10
AJT60 Mersen Ferraz Shawmut Fuse Time Delay Class J 60A 600V AC Pack Of 10
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AJT60 Mersen Ferraz Shawmut Fuse Time Delay Class J 600V AC 60 Amps

MERSEN
$65.19 USD - $65.19 USD
$65.19 USD
$65.19 USD - $65.19 USD
$65.19 USD
Out of stock
Pre Order

Product Information Sold Per Pack Of 10 60 Amps, 600 Volts AC UL Class J Fuse Time Delay for Motor Starting and Transformer Inrush Solid State Sma...

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$65.19 USD - $65.19 USD
$65.19 USD
$65.19 USD - $65.19 USD
$65.19 USD
Sold out
ATMR20 Mersen Fuse Class CC Fast Acting 20 A / 600V AC Sold Per Pack Of 10, New
ATMR20 Mersen Fuse Class CC Fast Acting 20 A / 600V AC Sold Per Pack Of 10, New
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ATMR20 Mersen Fuse Fast Acting Class CC 20 A / 600V AC/DC

MERSEN
$75.00 USD - $75.00 USD
$75.00 USD
$75.00 USD - $75.00 USD
$75.00 USD
Out of stock
Pre Order

Product Information Sold Per Pack Of 10 Application: Control Circuits Lighting General Loads Body Material: Glass Class: Class CC Contact Material...

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$75.00 USD - $75.00 USD
$75.00 USD
$75.00 USD - $75.00 USD
$75.00 USD
Sold out
ATDR15 Mersen Amp-Trap 2000 Class CC Fuses 15 A, 600V AC, Sold Per Pack Of 10
ATDR15 Mersen Amp-Trap 2000 Class CC Fuses 15 A, 600V AC, Sold Per Pack Of 10
Sold out

ATDR15 Mersen Amp-Trap 2000 Class CC Fuses 15 A, 600V AC

MERSEN
$81.00 USD - $81.00 USD
$81.00 USD
$81.00 USD - $81.00 USD
$81.00 USD
Out of stock
Pre Order

Product Information Sold Per Pack Of 10 Amp-Trap 2000 Class Class CC Current Rating: 15 A Speed: Time Lag Voltage Rating: 600V AC / 300V DC

$81.00 USD - $81.00 USD
$81.00 USD
$81.00 USD - $81.00 USD
$81.00 USD
Sold out
Mersen US6J3I M211381 Ultra-Safe Fuse Holder 60 A 3-Pole 600 V Class J
Mersen US6J3I M211381 Ultra-Safe Fuse Holder 60 A 3-Pole 600 V Class J

Mersen US6J3I M211381 Ultra-Safe Fuse Holder 60 A 3-Pole 600 V Class J

MERSEN
$57.06 USD - $57.06 USD
$57.06 USD
$57.06 USD - $57.06 USD
$57.06 USD
7 in stock
Pre Order

Product Information Sold By Unit Ultra Safe Fuse Holder Class J 3 Poles 600V - 60A

$57.06 USD - $57.06 USD
$57.06 USD
$57.06 USD - $57.06 USD
$57.06 USD
P243G Mersen Ferraz Shawmut Fuse Block, Semiconductor Sold By Unit
P243G Mersen Ferraz Shawmut Fuse Block, Semiconductor Sold By Unit
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P243G Mersen Ferraz Shawmut Fuse Block, Semiconductor 1000V 600A

MERSEN
$46.06 USD - $46.06 USD
$46.06 USD
$46.06 USD - $46.06 USD
$46.06 USD
Out of stock
Pre Order

Product Information Sold By Unit Brand Name Ferraz Shawmut Item Name Fuse Block Type Laminated Voltage Rating 1000 VAC Amperage Rating 225 -...

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$46.06 USD - $46.06 USD
$46.06 USD
$46.06 USD - $46.06 USD
$46.06 USD
Sold out
Mersen ATMR6 600V AC, 6 A, Fuse Fast-Acting, Class CC, Pack Of 10
Mersen ATMR6 600V AC, 6 A, Fuse Fast-Acting, Class CC, Pack Of 10
Sold out

Mersen ATMR6 600V AC 6 A Fuse Fast-Acting Class CC

MERSEN
$39.54 USD - $39.54 USD
$39.54 USD
$39.54 USD - $39.54 USD
$39.54 USD
Out of stock
Pre Order

Product Information Sold Per Pack Of 10 Class: Class CC Current Rating: 6 A Speed: Fast Acting Voltage Rating: 600V AC / DC 200kA I.R AC 100kA I.R...

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$39.54 USD - $39.54 USD
$39.54 USD
$39.54 USD - $39.54 USD
$39.54 USD
Sold out
Mersen Ferraz Shawmut AJT30 Fuse 600V AC, 30 A, Class J, Time-Delay, Pack Of 10
Mersen Ferraz Shawmut AJT30 Fuse 600V AC, 30 A, Class J, Time-Delay, Pack Of 10
Sold out

Mersen Ferraz Shawmut AJT30 Fuse 30 A, 600V AC, Class J, Time-Delay

MERSEN
$45.11 USD - $45.11 USD
$45.11 USD
$45.11 USD - $45.11 USD
$45.11 USD
Out of stock
Pre Order

Product Information Sold Per Pack Of 10 Body Material: Glass Class: Class J Current Rating: 30 A Series: Amp-Trap 2000 SmartSpot Series Speed: Tim...

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$45.11 USD - $45.11 USD
$45.11 USD
$45.11 USD - $45.11 USD
$45.11 USD
Sold out
TRS30R Mersen Ferraz Shawmut Fuse 600V AC, 30 A, Time-Delay Class RK5 Pack Of 10
TRS30R Mersen Ferraz Shawmut Fuse 600V AC, 30 A, Time-Delay Class RK5 Pack Of 10
Sold out

TRS30R Mersen Ferraz Shawmut Fuse 600V AC, 30 A, Class RK5, Time-Delay

MERSEN
$90.00 USD - $90.00 USD
$90.00 USD
$90.00 USD - $90.00 USD
$90.00 USD
Out of stock
Pre Order

Product Information Sold Per Pack Of 10 Product Attribute Attribute Value Application Motor Circuits Mains Feeders Branch Circuits Transformer...

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$90.00 USD - $90.00 USD
$90.00 USD
$90.00 USD - $90.00 USD
$90.00 USD
Sold out
ATDR1/2 ATDR12 Mersen Ferraz Shawmut Fuse 1/2 A, Time Delay, Class CC Pack Of 10
ATDR1/2 ATDR12 Mersen Ferraz Shawmut Fuse 1/2 A, Time Delay, Class CC Pack Of 10
Sold out

ATDR1/2 Mersen Ferraz Shawmut Fuse 600VAC, 1/2 A, Time Delay, Class CC

MERSEN
$50.00 USD - $50.00 USD
$50.00 USD
$50.00 USD - $50.00 USD
$50.00 USD
Out of stock
Pre Order

Product Information Sold Per Pack Of 10 ATDR12 Application: Small Motors Contactors Lighting Heaters General Loads Body Material: Glass Class: Cla...

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$50.00 USD - $50.00 USD
$50.00 USD
$50.00 USD - $50.00 USD
$50.00 USD
Sold out
AJT50 Mersen Fuse Time-Delay, Class J, 600V AC, 50 A, Sold Per Pack Of 10
AJT50 Mersen Fuse Time-Delay, Class J, 600V AC, 50 A, Sold Per Pack Of 10
Sold out

AJT50 Mersen Fuse Time-Delay, Class J, 600V AC, 50 A

MERSEN
$75.31 USD - $75.31 USD
$75.31 USD
$75.31 USD - $75.31 USD
$75.31 USD
Out of stock
Pre Order

Product Information Sold Per Pack Of 10 50 A 600 V AC UL Class J Fuse Time Delay for Motor Starting and Transformer Inrush Solid State SmartSpot V...

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$75.31 USD - $75.31 USD
$75.31 USD
$75.31 USD - $75.31 USD
$75.31 USD
Sold out
Mersen ATMR4 Fuse 4 A, 600V AC, Fast-Acting, Class CC, Pack Of 10
Mersen ATMR4 Fuse 4 A, 600V AC, Fast-Acting, Class CC, Pack Of 10

Mersen ATMR4 Fuse 4 A, 600V AC, Fast-Acting, Class CC

MERSEN
$80.00 USD - $80.00 USD
$80.00 USD
$80.00 USD - $80.00 USD
$80.00 USD
Only 1 left!
Pre Order

Description Sold Per Pack Of 10 Application: Control Circuits Lighting General Loads Body Material: Glass Class: Class CC Contact Material: Tin-pl...

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$80.00 USD - $80.00 USD
$80.00 USD
$80.00 USD - $80.00 USD
$80.00 USD
AJT12 Mersen Fuse Class J, Amp-Trap, 12 A, 600V AC Sold Per Pack Of 10
AJT12 Mersen Fuse Class J, Amp-Trap, 12 A, 600V AC Sold Per Pack Of 10
Sold out

AJT12 Mersen Ferraz Shawmut Fuse Amp-Trap, Class J, 12 A, 600V AC

MERSEN
$81.00 USD - $81.00 USD
$81.00 USD
$81.00 USD - $81.00 USD
$81.00 USD
Out of stock
Pre Order

Product Specifications Sold By Pack Of 10 Fuse Time-Delay Class J Visual Indicator 200kA AC / 100kA DC 600V AC 12 A

$81.00 USD - $81.00 USD
$81.00 USD
$81.00 USD - $81.00 USD
$81.00 USD
Sold out
Mersen ATQR1-1/2 Amp-Trap 2000, Fuse 1-1/2 A 600V AC Class CC Pack Of 10
Mersen ATQR1-1/2 Amp-Trap 2000, Fuse 1-1/2 A 600V AC Class CC Pack Of 10
Sold out

Mersen ATQR1-1/2 Amp-Trap 2000, Fuse 1-1/2 A 600V AC Class CC Pack Of 10

MERSEN
$38.75 USD - $38.75 USD
$38.75 USD
$38.75 USD - $38.75 USD
$38.75 USD
Out of stock
Pre Order

Product Information Sold Per Pack Of 10 ATQR112 Product Attribute Attribute Value   Application Control Transformers Solenoids Inductive Loa...

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$38.75 USD - $38.75 USD
$38.75 USD
$38.75 USD - $38.75 USD
$38.75 USD
Sold out
Mersen ATMR10 Amp-Trap Fuses 10A 600V AC Fast-Acting Sold Per Pack Of 10
Mersen ATMR10 Amp-Trap Fuses 10A 600V AC Fast-Acting Sold Per Pack Of 10

Mersen ATMR10 Amp-Trap Fuses 10A 600V AC Fast-Acting

MERSEN
$40.88 USD - $40.88 USD
$40.88 USD
$40.88 USD - $40.88 USD
$40.88 USD
Only 1 left!
Pre Order

Product Information Sold Per Pack Of 10 Application: Control Circuits Lighting General Loads Body Material: Glass Class: Class CC Contact Material...

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$40.88 USD - $40.88 USD
$40.88 USD
$40.88 USD - $40.88 USD
$40.88 USD
Mersen Ferraz Shawmut ATDR6 Fuse Class CC Slow Blow Acting 6 A, Pack Of 10
Mersen Ferraz Shawmut ATDR6 Fuse Class CC Slow Blow Acting 6 A, Pack Of 10
Sold out

Mersen Ferraz Shawmut ATDR6 Fuse Class CC Slow Blow Acting 6 A

MERSEN
$40.18 USD - $40.18 USD
$40.18 USD
$40.18 USD - $40.18 USD
$40.18 USD
Out of stock
Pre Order

Product Information Sold Per Pack Of 10 Body Material: Glass Class: Class CC Contact Material: Tin-Plated Copper Current Rating: 6 A Diameter: 2.1...

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$40.18 USD - $40.18 USD
$40.18 USD
$40.18 USD - $40.18 USD
$40.18 USD
Sold out
ATDR4 Mersen Amp-Trap 2000 Class CC, Fuse 4 A, 600V AC, Sold Per Pack Of 10
ATDR4 Mersen Amp-Trap 2000 Class CC, Fuse 4 A, 600V AC, Sold Per Pack Of 10
Sold out

ATDR4 Mersen Amp-Trap 2000 Class CC, Fuse 4A, 600 VAC

MERSEN
$81.00 USD - $81.00 USD
$81.00 USD
$81.00 USD - $81.00 USD
$81.00 USD
Out of stock
Pre Order

Product Information Sold Per Pack Of 10 Fuse Time Delay Class CC 4 Amp 600V AC / 300V DC Amp-Trap 2000 SmartSpot Series

$81.00 USD - $81.00 USD
$81.00 USD
$81.00 USD - $81.00 USD
$81.00 USD
Sold out
ATDR1-1/2 ATDR112 Mersen Fuse Amp-Trap 2000, Class CC, 1-1/2 Amp, Pack Of 10
ATDR1-1/2 ATDR112 Mersen Fuse Amp-Trap 2000, Class CC, 1-1/2 Amp, Pack Of 10
Sold out

ATDR1-1/2 Mersen Fuse 1-1/2 A, Amp-Trap 2000, Class CC, Time-Delay

MERSEN
$38.13 USD - $38.13 USD
$38.13 USD
$38.13 USD - $38.13 USD
$38.13 USD
Out of stock
Pre Order

Product Information Sold Per Pack Of 10 Sub Brand: Amp-Trap 2000 Item Name: North American Power Fuse Type: Time-Delay Voltage Rating: 600 VAC Amp...

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$38.13 USD - $38.13 USD
$38.13 USD
$38.13 USD - $38.13 USD
$38.13 USD
Sold out
Mersen ATMR8 Ferraz Shawmut Fuse 8 A, 600V AC, Class CC, Sold By Unit
Mersen ATMR8 Ferraz Shawmut Fuse 8 A, 600V AC, Class CC, Sold By Unit

Mersen Ferraz Shawmut ATMR8 Fuse 8 A, 600V AC, Class CC

MERSEN
$4.06 USD - $4.06 USD
$4.06 USD
$4.06 USD - $4.06 USD
$4.06 USD
Only 4 left!
Pre Order

Product Information Sold By Unit Application: Control Circuits Lighting General Loads Body Material: Glass Class: Class CC Contact Material: Tin-P...

View full details
$4.06 USD - $4.06 USD
$4.06 USD
$4.06 USD - $4.06 USD
$4.06 USD
Mersen ATMR8 Ferraz Shawmut Fuse Amp-Trap 8 A, 600V AC, Sold Per Pack Of 10
Mersen ATMR8 Ferraz Shawmut Fuse Amp-Trap 8 A, 600V AC, Sold Per Pack Of 10

Mersen Ferraz Shawmut ATMR8 Fuse Amp-Trap 8 A, 600V AC

MERSEN
$43.50 USD - $43.50 USD
$43.50 USD
$43.50 USD - $43.50 USD
$43.50 USD
Only 4 left!
Pre Order

Product Information Sold Per Pack Of 10 Application: Control Circuits Lighting General Loads Body Material: Glass Class: Class CC Contact Material...

View full details
$43.50 USD - $43.50 USD
$43.50 USD
$43.50 USD - $43.50 USD
$43.50 USD
ATDR10 Mersen Ferraz Shawmut Fuse Class CC, 10 A, 600V AC, Sold Per Pack Of 10
ATDR10 Mersen Ferraz Shawmut Fuse Class CC, 10 A, 600V AC, Sold Per Pack Of 10
Sold out

ATDR10 Mersen Ferraz Shawmut Fuse Class CC, 10 A, 600V AC

MERSEN
$45.15 USD - $45.15 USD
$45.15 USD
$45.15 USD - $45.15 USD
$45.15 USD
Out of stock
Pre Order

Product Information Sold Per Pack Of 10 Class: Class CC Current Rating: 10A Speed: Time Lag Voltage Rating: 600 V AC / 300 V DC  

$45.15 USD - $45.15 USD
$45.15 USD
$45.15 USD - $45.15 USD
$45.15 USD
Sold out
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