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. 622-1051
Mfr. Part No.5SE2310
BrandSiemens
$14.47
1 Pack of 10
Pack(s)
10A D01 400V ac gG - 50 kA @ 400 V ac, 8 kA @ 250 V dc -5°C +40°C Red Ceramic
RS Stock No. 413-765
Mfr. Part No.2313403
BrandETI
$3.066
Each (In a Pack of 5)
units
63A DIII 500V ac gG - gL E33 - - - Copper Ceramic
RS Stock No. 396-308
Mfr. Part No.5SB251
BrandSiemens
$1.37
Each (In a Pack of 5)
units
10A DII 500V ac gG E27 50 kA @ 500 V ac, 8 kA @ 500 V dc -5°C +40°C Red Ceramic
RS Stock No. 417-852
Mfr. Part No.2311405
BrandETI
$1.544
Each (In a Pack of 5)
units
16A DI 500V ac gG - gL E16 - - - Grey Ceramic
RS Stock No. 413-642
Mfr. Part No.2312403
BrandETI
$2.838
Each (In a Pack of 5)
units
6A DII 500V ac gG - gL E27 - - - Green Ceramic
RS Stock No. 413-664
Mfr. Part No.2312405
BrandETI
$1.686
Each (In a Pack of 5)
units
16A DII 500V ac gG - gL E27 - - - Grey Ceramic
RS Stock No. 422-551
Mfr. Part No.10-005-07/20A
BrandSIBA
$8.886
Each (In a Pack of 5)
units
20A DII 500V ac gR E27 50 kA - - Grey Ceramic
RS Stock No. 397-543
Mfr. Part No.5SB421
BrandSiemens
$2.934
Each (In a Pack of 5)
units
50A DIII 500V ac gG E33 50 kA @ 500 V ac, 8 kA @ 500 V dc -5°C +40°C White Ceramic
RS Stock No. 417-874
Mfr. Part No.2311207
BrandETI
$1.794
Each (In a Pack of 5)
units
25A DI 500V ac gG - gL - - - - Yellow Ceramic
RS Stock No. 415-941
Mfr. Part No.2211002
BrandETI
$1.66
Each (In a Pack of 5)
units
4A D01 400V ac gG E14 50 kA @ 400 V ac, 8 kA @ 250 V dc - - Brown Ceramic
RS Stock No. 413-636
Mfr. Part No.2312402
BrandETI
$2.498
Each (In a Pack of 5)
units
4A DII 500V ac gG - gL E27 - - - Brown Ceramic
RS Stock No. 622-1124
Mfr. Part No.5SE2350
BrandSiemens
$2.413
Each (In a Pack of 10)
units
50A D02 400V ac gG - 50 kA @ 400 V ac, 8 kA @ 250 V dc -5°C +40°C White Ceramic
RS Stock No. 417-830
Mfr. Part No.2311403
BrandETI
$1.994
Each (In a Pack of 5)
units
6A DI 500V ac gG - gL E16 - - - Green Ceramic
RS Stock No. 396-168
Mfr. Part No.5SB221
BrandSiemens
$1.93
Each (In a Pack of 5)
units
4A DII 500V ac gG E27 50 kA @ 500 V ac, 8 kA @ 500 V dc -5°C +40°C Brown Ceramic
RS Stock No. 415-935
Mfr. Part No.2211001
BrandETI
$1.462
Each (In a Pack of 5)
units
2A D01 400V ac gG E14 50 kA @ 400 V ac, 8 kA @ 250 V dc - - Pink Ceramic
RS Stock No. 421-536
Mfr. Part No.10-007-07/50A
BrandSIBA
$11.484
Each (In a Pack of 5)
units
50A DIII 500V ac gR E33 50 kA - - - Ceramic
RS Stock No. 416-023
Mfr. Part No.2212005
BrandETI
$1.906
Each (In a Pack of 5)
units
63A D02 400V ac gG E18 50 kA @ 400 V ac, 8 kA @ 250 V dc - - Copper Ceramic
RS Stock No. 417-824
Mfr. Part No.2311402
BrandETI
$2.432
Each (In a Pack of 5)
units
4A DI 500V ac gG - gL E16 - - - Brown Ceramic
RS Stock No. 377-0516
Mfr. Part No.K214576
BrandMersen
$2.374
Each (In a Pack of 5)
units
50A DIII 500V gG E33 - -40°C - White Ceramic
RS Stock No. 415-979
Mfr. Part No.2211005
BrandETI
$1.462
Each (In a Pack of 5)
units
16A D01 400V ac gG E14 50 kA @ 400 V ac, 8 kA @ 250 V dc - - Grey Ceramic
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