Bottle Fuses

Bottle fuses are a type of fuse with differently sized ends. They are designed to ensure that the wrong fuse is never inserted into the circuit, as their larger end is sized according to the adaptor screw holes.

Fuses are designed to protect a circuit against overcurrent or other faults. When overcurrent occurs, the metal strip in the fuse will melt, causing the circuit to break and preventing further damage.

How do bottle fuses work?

Bottle fuses are inserted into the circuit in a similar way to normal fuses, by connecting their two ends to the adjacent parts, or by using a bottle fuse holder However, unlike regular fuses, when a bottle fuse blows, the colour indicator located at the head of the fuse pops out, to let the user know that there is a problem with a circuit. The fuse will then need to be changed.

Types of bottle fuses

Bottle fuses, as the name suggests, feature a bottle shaped body with a larger tip and a smaller one. They vary in exact shape and come in different sizes and voltage ranges depending on the specific application.


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Description Price Current Rating Bottle Fuse Size Voltage Rating Application Category Thread Size Breaking Capacity at Maximum Voltage Rating Minimum Operating Temperature Maximum Operating Temperature Gauge/Cap Colour Body Material
RS Stock No. 377-0522
Mfr. Part No.R215088
BrandMersen
PHP98.604
Each (In a Pack of 5)
units
63A DIII 500V gG E33 - -40°C - Copper Ceramic
RS Stock No. 377-0370
Mfr. Part No.C213557
BrandMersen
PHP64.55
Each (In a Pack of 5)
units
6A DI 500V gG E16 - -40°C - Green Ceramic
RS Stock No. 377-0392
Mfr. Part No.J214575
BrandMersen
PHP61.944
Each (In a Pack of 5)
units
16A DI 500V gG E16 - -40°C - Grey Ceramic
RS Stock No. 377-0601
Mfr. Part No.B216109
BrandMersen
PHP232.22
Each (In a Pack of 5)
units
25A DII 500V ac gR E27 50 kA - - - Ceramic
RS Stock No. 377-0689
Mfr. Part No.F201255
BrandMersen
PHP598.956
Each (In a Pack of 5)
units
35A D02 440V ac gR E18 - -40°C - - Ceramic
RS Stock No. 377-0279
Mfr. Part No.W213160
BrandMersen
PHP69.104
Each (In a Pack of 5)
units
25A D02 400V ac gG - 50 kA @ 500 V ac -40°C - Yellow Ceramic
RS Stock No. 377-0471
Mfr. Part No.K201765
BrandMersen
PHP45.29
Each (In a Pack of 5)
units
16A DII 500V gG E27 - -40°C - Grey Ceramic
RS Stock No. 377-0588
Mfr. Part No.T215090
BrandMersen
PHP292.91
Each (In a Pack of 5)
units
16A DII 500V ac gR E27 50 kA -40°C - - Ceramic
RS Stock No. 377-0673
Mfr. Part No.R200713
BrandMersen
PHP342.87
Each (In a Pack of 5)
units
25A D02 440V ac gR E18 - -40°C - - Ceramic
RS Stock No. 377-0257
Mfr. Part No.R223023
BrandMersen
PHP58.748
Each (In a Pack of 5)
units
16A D01 400V ac gG - 100 kA -40°C - Grey Ceramic
RS Stock No. 377-0263
Mfr. Part No.B217742
BrandMersen
PHP69.104
Each (In a Pack of 5)
units
20A D02 400V ac gG - 100 kA - - Blue Ceramic
RS Stock No. 377-0500
Mfr. Part No.C214063
BrandMersen
PHP89.086
Each (In a Pack of 5)
units
35A DIII 500V gG E33 - -40°C - Black Ceramic
RS Stock No. 377-0459
Mfr. Part No.B222917
BrandMersen
PHP72.278
Each (In a Pack of 5)
units
6A DII 500V gG - gL E27 - -40°C - Green Ceramic
RS Stock No. 377-0285
Mfr. Part No.R219826
BrandMersen
PHP75.22
Each (In a Pack of 5)
units
35A D02 400V ac gG - 50 kA @ 500 V ac -40°C - Black Ceramic
RS Stock No. 377-0364
Mfr. Part No.G213055
BrandMersen
PHP65.134
Each (In a Pack of 5)
units
4A DI 500V gG E16 - -40°C - Brown Ceramic
RS Stock No. 377-0386
Mfr. Part No.B214062
BrandMersen
PHP61.944
Each (In a Pack of 5)
units
10A DI 500V gG E16 - -40°C - Red Ceramic
RS Stock No. 377-0516
Mfr. Part No.K214576
BrandMersen
PHP112.598
Each (In a Pack of 5)
units
50A DIII 500V gG E33 - -40°C - White Ceramic
RS Stock No. 377-0241
Mfr. Part No.W211090
BrandMersen
PHP57.118
Each (In a Pack of 5)
units
10A D01 400V ac gG - 50 kA -40°C - Red Ceramic
RS Stock No. 377-0623
Mfr. Part No.K217129
BrandMersen
PHP316.256
Each (In a Pack of 5)
units
35A DIII 500V ac gR E33 50 kA -40°C - - Ceramic
RS Stock No. 377-0617
Mfr. Part No.Y216612
BrandMersen
PHP332.256
Each (In a Pack of 5)
units
30A DII 500V ac gR E27 50 kA -40°C - - Ceramic