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. 415-963
Mfr. Part No.2211004
BrandETI
TWD25.80
Each (In a Pack of 5)
units
10 A D01 400 V ac GG E14 8 kA @ 250 V dc, 50 kA @ 400 V ac - - Red Ceramic
RS Stock No. 622-1089
Mfr. Part No.5SE2325
BrandSiemens
TWD30.40
Each (In a Pack of 10)
units
25 A D02 400 V ac GG - 8 kA @ 250 V dc, 50 kA @ 400 V ac -5°C +40°C Yellow Ceramic
RS Stock No. 622-1130
Mfr. Part No.5SE2363
BrandSiemens
TWD49.90
Each (In a Pack of 10)
units
63 A D02 400 V ac GG - 8 kA @ 250 V dc, 50 kA @ 400 V ac -5°C +40°C Copper Ceramic
RS Stock No. 396-308
Mfr. Part No.5SB251
BrandSiemens
TWD28.40
Each (In a Pack of 5)
units
10 A DII 500 V ac GG E27 8 kA @ 500 V dc, 50 kA @ 500 V ac -5°C +40°C Red Ceramic
RS Stock No. 421-463
Mfr. Part No.10-005-07/4A
BrandSIBA
TWD143.60
Each (In a Pack of 5)
units
4 A DII 500 V ac GR E27 50 kA - - - Ceramic
RS Stock No. 377-0493
Mfr. Part No.X212540
BrandMersen
TWD31.00
Each (In a Pack of 5)
units
25 A DII 500 V GG E27 - -40°C - Yellow Ceramic
RS Stock No. 396-174
Mfr. Part No.5SB231
BrandSiemens
TWD41.60
Each (In a Pack of 5)
units
6 A DII 500 V ac GG E27 8 kA @ 500 V dc, 50 kA @ 500 V ac -5°C +40°C Green Ceramic
RS Stock No. 395-591
Mfr. Part No.5SB131
BrandSiemens
TWD132.60
Each (In a Pack of 5)
units
6 A DII 500 V ac GG E27 8 kA @ 500 V dc, 50 kA @ 500 V ac -5°C +40°C Green Ceramic
RS Stock No. 415-957
Mfr. Part No.2211003
BrandETI
TWD28.40
Each (In a Pack of 5)
units
6 A D01 400 V ac GG E14 8 kA @ 250 V dc, 50 kA @ 400 V ac - - Green Ceramic
RS Stock No. 622-1124
Mfr. Part No.5SE2350
BrandSiemens
TWD50.20
Each (In a Pack of 10)
units
50 A D02 400 V ac GG - 8 kA @ 250 V dc, 50 kA @ 400 V ac -5°C +40°C White Ceramic
RS Stock No. 421-413
Mfr. Part No.10-028-07/25A
BrandSIBA
TWD184.40
Each (In a Pack of 5)
units
25 A D02 440 V ac GR E18 - - - - Ceramic
RS Stock No. 377-0370
Mfr. Part No.C213557
BrandMersen
TWD35.40
Each (In a Pack of 5)
units
6 A DI 500 V GG E16 - -40°C - Green Ceramic
RS Stock No. 899-9725
Mfr. Part No.4D27SB
BrandAltech
TWD84.90
Each (In a Pack of 25)
units
4 A DII 500 V ac GG E27 - - - Brown Glass
RS Stock No. 377-0285
Mfr. Part No.R219826
BrandMersen
TWD42.80
Each (In a Pack of 5)
units
35 A D02 400 V ac GG - 50 kA @ 500 V ac -40°C - Black Ceramic
RS Stock No. 421-479
Mfr. Part No.10-005-07/6A
BrandSIBA
TWD115.40
Each (In a Pack of 5)
units
6 A DII 500 V ac GR E27 50 kA - - - Ceramic
RS Stock No. 899-9403
Mfr. Part No.40D33SB
BrandAltech
TWD118.80
Each (In a Pack of 5)
units
40 A DIII 500 V ac GG E33 - - - Black Glass
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. 377-0308
Mfr. Part No.D215191
BrandMersen
TWD50.00
Each (In a Pack of 5)
units
50 A D02 400 V ac GG - 50 kA @ 500 V ac -40°C - White Ceramic
RS Stock No. 413-765
Mfr. Part No.2313403
BrandETI
TWD55.00
Each (In a Pack of 5)
units
63 A DIII 500 V ac GG - gL E33 - - - Copper Ceramic
RS Stock No. 377-0588
Mfr. Part No.T215090
BrandMersen
TWD169.20
Each (In a Pack of 5)
units
16 A DII 500 V ac GR E27 50 kA -40°C - - Ceramic