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. 202-7074
Mfr. Part No.5SE1325
BrandSiemens
SGD21.119
Each (In a Pack of 10)
units
25 A D02 400 V GR - - - - - -
RS Stock No. 181-8647
Mfr. Part No.6D16
SGD11.04
Each
units
6 A DI 500 V ac GG E16 50 kA @ 500 V ac - - Green -
New
RS Stock No. 216-4806
Mfr. Part No.5SE1363
BrandSiemens
SGD21.632
Each (In a Pack of 10)
units
63 A D02 400 V GR - - - - - -
RS Stock No. 182-1667
Mfr. Part No.35D33
SGD5.26
Each
units
- DIII - - E33 - - - - -
RS Stock No. 377-0493
Mfr. Part No.X212540
BrandMersen
SGD1.42
Each (In a Pack of 5)
units
25 A DII 500 V GG E27 - -40°C - Yellow Ceramic
RS Stock No. 377-0342
Mfr. Part No.W212539
BrandMersen
SGD1.794
Each (In a Pack of 5)
units
2 A DI 500 V GG E16 - -40°C - Pink Ceramic
RS Stock No. 377-0522
Mfr. Part No.R215088
BrandMersen
SGD2.152
Each (In a Pack of 5)
units
63 A DIII 500 V GG E33 - -40°C - Copper Ceramic
RS Stock No. 395-765
Mfr. Part No.5SA251
BrandSiemens
SGD6.533
Each (In a Pack of 10)
units
10 A DII 500 V ac GG E16 8 kA @ 500 V dc, 50 kA @ 500 V ac -5°C +40°C Red Ceramic
RS Stock No. 377-0459
Mfr. Part No.B222917
BrandMersen
SGD1.89
Each (In a Pack of 5)
units
6 A DII 500 V GG - gL E27 - -40°C - Green Ceramic
RS Stock No. 377-0667
Mfr. Part No.H222923
BrandMersen
SGD12.012
Each (In a Pack of 5)
units
20 A D02 440 V ac GR E18 - -40°C - - Ceramic
RS Stock No. 181-8474
Mfr. Part No.25D27
SGD103.99
1 Box of 25
Box(es)
25 A DII 500 V ac GG E27 50 kA @ 500 V ac - - Yellow -
RS Stock No. 415-941
Mfr. Part No.2211002
BrandETI
SGD1.318
Each (In a Pack of 5)
units
4 A D01 400 V ac GG E14 8 kA @ 250 V dc, 50 kA @ 400 V ac - - Brown Ceramic
RS Stock No. 421-558
Mfr. Part No.10-002-04/1A
BrandSIBA
SGD6.004
Each (In a Pack of 5)
units
1 A DI 500 V ac GG - gL E16 50 kA - - - Ceramic
RS Stock No. 181-8566
Mfr. Part No.50NZ02
SGD7.764
Each (In a Box of 10)
units
50 A D02 400 V ac GG E18 50 kA @ 400 V ac - - White -
RS Stock No. 417-818
Mfr. Part No.2311401
BrandETI
SGD1.68
Each (In a Pack of 5)
units
2 A DI 500 V ac GG - gL E16 - - - Pink Ceramic
RS Stock No. 377-0516
Mfr. Part No.K214576
BrandMersen
SGD2.256
Each (In a Pack of 5)
units
50 A DIII 500 V GG E33 - -40°C - White Ceramic
RS Stock No. 203-3951
Mfr. Part No.5SD450
BrandSiemens
SGD19.334
Each (In a Pack of 5)
units
35 A DIII 500 V GR E33 - - - - -
RS Stock No. 377-0364
Mfr. Part No.G213055
BrandMersen
SGD1.702
Each (In a Pack of 5)
units
4 A DI 500 V GG E16 - -40°C - Brown Ceramic
RS Stock No. 377-0392
Mfr. Part No.J214575
BrandMersen
SGD1.618
Each (In a Pack of 5)
units
16 A DI 500 V GG E16 - -40°C - Grey Ceramic
RS Stock No. 377-0673
Mfr. Part No.R200713
BrandMersen
SGD8.962
Each (In a Pack of 5)
units
25 A D02 440 V ac GR E18 - -40°C - - Ceramic