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. 377-0409
Mfr. Part No.Q215087
BrandMersen
SGD1.544
Each (In a Pack of 5)
units
20A DI 500V gG E16 - -40°C - Blue Ceramic
RS Stock No. 900-1522
Mfr. Part No.63D33SB
BrandAltech
SGD7.04
Each
units
63A DIII 500V ac gG E33 - - - Copper Glass
RS Stock No. 899-0942
Mfr. Part No.25NZ02GL
BrandAltech
SGD4.78
Each (In a Pack of 10)
units
25A - 380V ac - - - - - - Glass
RS Stock No. 415-985
Mfr. Part No.2212001
BrandETI
SGD1.262
Each (In a Pack of 5)
units
20A D02 400V ac gG E18 50 kA @ 400 V ac, 8 kA @ 250 V dc - - Blue Ceramic
RS Stock No. 899-9734
Mfr. Part No.4D27SC
BrandAltech
SGD18.168
Each (In a Pack of 5)
units
4A DII 500V ac gR E27 - - - Brown Glass
RS Stock No. 395-991
Mfr. Part No.5SC221
BrandSiemens
SGD34.22
Each (In a Pack of 3)
units
100A DIV 500V ac gG - 50 kA @ 500 V ac, 8 kA @ 400 V dc -5°C +40°C Red Ceramic
RS Stock No. 657-1390
Mfr. Part No.5SB111
BrandSiemens
SGD20.788
Each (In a Pack of 5)
units
2A DII 500V ac gG E27 50 kA @ 500 V ac, 8 kA @ 500 V dc -5°C +40°C Pink Ceramic
RS Stock No. 416-017
Mfr. Part No.2212004
BrandETI
SGD1.726
Each (In a Pack of 5)
units
50A D02 400V ac gG E18 50 kA @ 400 V ac, 8 kA @ 250 V dc - - White Ceramic
RS Stock No. 377-0544
Mfr. Part No.K213058
BrandMersen
SGD5.146
Each (In a Pack of 5)
units
4A DII 500V ac gR E27 50 kA -40°C - - Ceramic
RS Stock No. 866-3189
Mfr. Part No.0001.2021
BrandSchurter
SGD4.90
Each (In a Pack of 25)
units
2A DTI 250V ac gG - - - - Pink Ceramic
RS Stock No. 622-1051
Mfr. Part No.5SE2310
BrandSiemens
SGD1.338
Each (In a Pack of 10)
units
10A D01 400V ac gG - 50 kA @ 400 V ac, 8 kA @ 250 V dc -5°C +40°C Red Ceramic
RS Stock No. 899-3988
Mfr. Part No.35D33SB
BrandAltech
SGD4.43
Each (In a Pack of 10)
units
35A DIII 500V ac gG E33 - - - Black Glass
RS Stock No. 181-8902
Mfr. Part No.16D27Q
SGD5.29
Each
units
16A DII 500V ac gG E27 50 kA @ 500 V ac - - Grey -
RS Stock No. 377-0342
Mfr. Part No.W212539
BrandMersen
SGD1.784
Each (In a Pack of 5)
units
2A DI 500V gG E16 - -40°C - Pink Ceramic
RS Stock No. 899-1468
Mfr. Part No.2D27FB
BrandAltech
SGD3.683
Each (In a Pack of 10)
units
2A DII 500V ac - E27 - - - Pink Glass
RS Stock No. 181-8580
Mfr. Part No.10D27Q
SGD116.71
1 Box of 25
Box(es)
10A DII 500V ac gG E27 50 kA @ 500 V ac - - Red -
RS Stock No. 377-0550
Mfr. Part No.E214065
BrandMersen
SGD5.908
Each (In a Pack of 5)
units
6A DII 500V ac gR E27 50 kA -40°C - - Ceramic
RS Stock No. 900-1579
Mfr. Part No.6D16SC
BrandAltech
SGD9.606
Each (In a Pack of 25)
units
6A DI 500V ac gR E16 - - - Green Glass
RS Stock No. 866-3198
Mfr. Part No.0001.2023
BrandSchurter
SGD4.90
Each (In a Pack of 25)
units
6A DTI 250V ac gG - - - - Green Ceramic
RS Stock No. 421-457
Mfr. Part No.10-005-07/2A
BrandSIBA
SGD10.638
Each (In a Pack of 5)
units
2A DII 500V ac gR E27 50 kA - - - Ceramic