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. 181-8657
Mfr. Part No.10D16
SGD14.78
Each
units
10 A DI 500 V ac GG E16 50 kA @ 500 V ac - - Red -
RS Stock No. 377-0550
Mfr. Part No.E214065
BrandMersen
SGD4.892
Each (In a Pack of 5)
units
6 A DII 500 V ac GR E27 50 kA -40°C - - Ceramic
RS Stock No. 181-8474
Mfr. Part No.25D27
SGD139.27
1 Box of 25
Box(es)
25 A DII 500 V ac GG E27 50 kA @ 500 V ac - - Yellow -
RS Stock No. 898-3388
Mfr. Part No.16D16SC
BrandAltech
SGD11.09
Each (In a Pack of 25)
units
16 A DI 500 V ac GR E16 - - - Grey Glass
RS Stock No. 377-0263
Mfr. Part No.B217742
BrandMersen
SGD1.842
Each (In a Pack of 5)
units
20 A D02 400 V ac GG - 100 kA - - Blue Ceramic
RS Stock No. 421-479
Mfr. Part No.10-005-07/6A
BrandSIBA
SGD5.434
Each (In a Pack of 5)
units
6 A DII 500 V ac GR E27 50 kA - - - Ceramic
RS Stock No. 181-8933
Mfr. Part No.6D27Q
SGD7.96
Each
units
6 A DII 500 V ac GG E27 50 kA @ 500 V ac - - Green -
RS Stock No. 202-7052
Mfr. Part No.5SE1310
BrandSiemens
SGD19.716
Each (In a Pack of 10)
units
10 A D01 400 V GR - - - - - -
RS Stock No. 202-7145
Mfr. Part No.5SE2320
BrandSiemens
SGD1.747
Each (In a Pack of 10)
units
20 A D02 400 V GR - - - - - -
RS Stock No. 202-7216
Mfr. Part No.5SE1350
BrandSiemens
SGD34.393
Each (In a Pack of 10)
units
50 A D02 400 V GR - - - - - -
RS Stock No. 421-407
Mfr. Part No.10-028-07/20A
BrandSIBA
SGD7.946
Each (In a Pack of 5)
units
20 A D02 440 V ac GR E18 - - - - Ceramic
RS Stock No. 768-6106
Mfr. Part No.2313402
BrandETI
SGD2.87
Each (In a Pack of 5)
units
50 A DIII 500 V ac GG - gL E33 50 kA @ 500 V ac - - White -
RS Stock No. 181-8716
Mfr. Part No.25D27
SGD6.39
Each
units
25 A DII 500 V ac GG E27 50 kA @ 500 V ac - - Yellow -
RS Stock No. 203-3951
Mfr. Part No.5SD450
BrandSiemens
SGD19.464
Each (In a Pack of 5)
units
35 A DIII 500 V GR E33 - - - - -
RS Stock No. 622-1095
Mfr. Part No.5SE2332
BrandSiemens
SGD2.391
Each (In a Pack of 10)
units
32 A D02 400 V ac GG - 8 kA @ 250 V dc, 50 kA @ 400 V ac -5°C +40°C Black Ceramic
RS Stock No. 377-0623
Mfr. Part No.K217129
BrandMersen
SGD8.428
Each (In a Pack of 5)
units
35 A DIII 500 V ac GR E33 50 kA -40°C - - Ceramic
RS Stock No. 421-429
Mfr. Part No.10-028-07/35A
BrandSIBA
SGD9.096
Each (In a Pack of 5)
units
35 A D02 440 V ac GR E18 - - - - Ceramic
RS Stock No. 181-8572
Mfr. Part No.6D27Q
SGD163.15
1 Box of 25
Box(es)
6 A DII 500 V ac GG E27 50 kA @ 500 V ac - - Green -
RS Stock No. 421-542
Mfr. Part No.10-007-07/63A
BrandSIBA
SGD7.804
Each (In a Pack of 5)
units
63 A DIII 500 V ac GR E33 50 kA - - Grey Ceramic
RS Stock No. 377-0421
Mfr. Part No.Q215593
BrandMersen
SGD1.618
Each (In a Pack of 5)
units
25 A DI 500 V GG E16 - -40°C - Yellow Ceramic