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. 898-3388
Mfr. Part No.16D16SC
BrandAltech
TWD240.40
Each (In a Pack of 25)
units
16 A DI 500 V ac GR E16 - - - Grey Glass
RS Stock No. 898-1279
Mfr. Part No.10D16SC
BrandAltech
TWD240.40
Each (In a Pack of 25)
units
10 A DI 500 V ac GR E16 - - - Red Glass
RS Stock No. 181-8580
Mfr. Part No.10D27Q
TWD2,505.00
1 Box of 25
Box(es)
10 A DII 500 V ac GG E27 50 kA @ 500 V ac - - Red -
RS Stock No. 377-0459
Mfr. Part No.B222917
BrandMersen
TWD42.00
Each (In a Pack of 5)
units
6 A DII 500 V GG - gL E27 - -40°C - Green Ceramic
RS Stock No. 377-0695
Mfr. Part No.R201771
BrandMersen
TWD323.80
Each (In a Pack of 5)
units
20 A D02 440 V ac GR E18 - -40°C - - Ceramic
RS Stock No. 421-520
Mfr. Part No.10-007-07/35A
BrandSIBA
TWD159.00
Each (In a Pack of 5)
units
35 A DIII 500 V ac GR E33 50 kA - - - Ceramic
RS Stock No. 898-1272
Mfr. Part No.10D16FB
BrandAltech
TWD97.10
Each (In a Pack of 10)
units
- DI - - E16 - - - - -
RS Stock No. 395-765
Mfr. Part No.5SA251
BrandSiemens
TWD146.60
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. 416-017
Mfr. Part No.2212004
BrandETI
TWD40.00
Each (In a Pack of 5)
units
50 A D02 400 V ac GG E18 8 kA @ 250 V dc, 50 kA @ 400 V ac - - White Ceramic
RS Stock No. 768-6106
Mfr. Part No.2313402
BrandETI
TWD58.60
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. 377-0421
Mfr. Part No.Q215593
BrandMersen
TWD35.80
Each (In a Pack of 5)
units
25 A DI 500 V GG E16 - -40°C - Yellow Ceramic
RS Stock No. 417-874
Mfr. Part No.2311207
BrandETI
TWD21.80
Each (In a Pack of 5)
units
25 A DI 500 V ac GG - gL - - - - Yellow Ceramic
RS Stock No. 377-0409
Mfr. Part No.Q215087
BrandMersen
TWD35.80
Each (In a Pack of 5)
units
20 A DI 500 V GG E16 - -40°C - Blue Ceramic
RS Stock No. 413-670
Mfr. Part No.2312406
BrandETI
TWD37.00
Each (In a Pack of 5)
units
20 A DII 500 V ac GG - gL E27 - - - Blue Ceramic
RS Stock No. 417-868
Mfr. Part No.2311406
BrandETI
TWD27.40
Each (In a Pack of 5)
units
20 A DI 500 V ac GG - gL E16 - - - Blue Ceramic