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. 898-1285
Mfr. Part No.10D27SC
BrandAltech
TWD232.00
Each (In a Pack of 5)
units
10 A DII 500 V ac GR E27 - - - Red Glass
RS Stock No. 377-0314
Mfr. Part No.C201873
BrandMersen
TWD46.80
Each (In a Pack of 5)
units
63 A D02 400 V ac GG - 50 kA @ 500 V ac - - Copper Ceramic
New
RS Stock No. 202-7226
Mfr. Part No.5SD470
BrandSiemens
TWD355.60
Each (In a Pack of 5)
units
63 A DIII 500 V GR E33 - - - - -
RS Stock No. 181-8523
Mfr. Part No.6D16
TWD257.10
Each (In a Box of 10)
units
6 A DI 500 V ac GG E16 50 kA @ 500 V ac - - Green -
RS Stock No. 377-0437
Mfr. Part No.Z219718
BrandMersen
TWD43.20
Each (In a Pack of 5)
units
2 A DII 500 V GG E27 - -40°C - Pink Ceramic
RS Stock No. 413-743
Mfr. Part No.2313401
BrandETI
TWD45.00
Each (In a Pack of 5)
units
35 A DIII 500 V ac GG - gL E33 - - - Black Ceramic
New
RS Stock No. 202-7236
Mfr. Part No.5SE2013-2A
BrandSiemens
TWD29.60
Each (In a Pack of 10)
units
13 A D01 400 V GG - - - - - -
RS Stock No. 397-543
Mfr. Part No.5SB421
BrandSiemens
TWD106.00
Each (In a Pack of 5)
units
50 A DIII 500 V ac GG E33 8 kA @ 500 V dc, 50 kA @ 500 V ac -5°C +40°C White Ceramic
RS Stock No. 900-1560
Mfr. Part No.6D16SB
BrandAltech
TWD97.10
Each (In a Pack of 10)
units
6 A DI 500 V ac GG E16 - - - Green Glass
RS Stock No. 415-935
Mfr. Part No.2211001
BrandETI
TWD27.80
Each (In a Pack of 5)
units
2 A D01 400 V ac GG E14 8 kA @ 250 V dc, 50 kA @ 400 V ac - - Pink Ceramic
RS Stock No. 899-3979
Mfr. Part No.35D33FB
BrandAltech
TWD97.00
Each (In a Pack of 5)
units
35 A DIII 500 V ac - E33 - - - Black Glass
RS Stock No. 377-0364
Mfr. Part No.G213055
BrandMersen
TWD37.60
Each (In a Pack of 5)
units
4 A DI 500 V GG E16 - -40°C - Brown Ceramic
RS Stock No. 396-168
Mfr. Part No.5SB221
BrandSiemens
TWD40.20
Each (In a Pack of 5)
units
4 A DII 500 V ac GG E27 8 kA @ 500 V dc, 50 kA @ 500 V ac -5°C +40°C Brown Ceramic
RS Stock No. 413-765
Mfr. Part No.2313403
BrandETI
TWD53.20
Each (In a Pack of 5)
units
63 A DIII 500 V ac GG - gL E33 - - - Copper Ceramic
RS Stock No. 377-0645
Mfr. Part No.Q217640
BrandMersen
TWD182.80
Each (In a Pack of 5)
units
50 A DIII 500 V ac GR E33 50 kA -40°C - - Ceramic
RS Stock No. 396-156
Mfr. Part No.5SA211
BrandSiemens
TWD138.00
Each (In a Pack of 10)
units
2 A DII 500 V ac GG E16 8 kA @ 500 V dc, 50 kA @ 500 V ac -5°C +40°C Pink Ceramic
RS Stock No. 413-664
Mfr. Part No.2312405
BrandETI
TWD35.00
Each (In a Pack of 5)
units
16 A DII 500 V ac GG - gL E27 - - - Grey Ceramic
RS Stock No. 395-991
Mfr. Part No.5SC221
BrandSiemens
TWD529.70
Each (In a Pack of 3)
units
100 A DIV 500 V ac GG - 8 kA @ 400 V dc, 50 kA @ 500 V ac -5°C +40°C Red Ceramic
RS Stock No. 847-0983
Mfr. Part No.5SD440
BrandSiemens
TWD290.00
Each
units
25 A DII 500 V ac/dc GR E27 - -5°C +40°C - -
RS Stock No. 899-3988
Mfr. Part No.35D33SB
BrandAltech
TWD97.10
Each (In a Pack of 10)
units
35 A DIII 500 V ac GG E33 - - - Black Glass