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. 181-8566
Mfr. Part No.50NZ02
TWD214.30
Each (In a Box of 10)
units
50 A D02 400 V ac GG E18 50 kA @ 400 V ac - - White -
RS Stock No. 413-642
Mfr. Part No.2312403
BrandETI
TWD51.80
Each (In a Pack of 5)
units
6 A DII 500 V ac GG - gL E27 - - - Green Ceramic
RS Stock No. 377-0235
Mfr. Part No.B215695
BrandMersen
TWD38.00
Each (In a Pack of 5)
units
6 A D01 400 V ac GG - 100 kA - - Green Ceramic
RS Stock No. 181-8933
Mfr. Part No.6D27Q
TWD160.00
Each
units
6 A DII 500 V ac GG E27 50 kA @ 500 V ac - - Green -
RS Stock No. 377-0241
Mfr. Part No.W211090
BrandMersen
TWD33.00
Each (In a Pack of 5)
units
10 A D01 400 V ac GG - 50 kA -40°C - Red Ceramic
RS Stock No. 898-3382
Mfr. Part No.16D27FB
BrandAltech
TWD77.40
Each (In a Pack of 10)
units
- DII - - E27 - - - - -
RS Stock No. 898-1281
Mfr. Part No.10D27SB
BrandAltech
TWD77.40
Each (In a Pack of 10)
units
- DII - - E27 - - - - -
RS Stock No. 181-8657
Mfr. Part No.10D16
TWD291.00
Each
units
10 A DI 500 V ac GG E16 50 kA @ 500 V ac - - Red -
RS Stock No. 182-1667
Mfr. Part No.35D33
TWD140.00
Each
units
- DIII - - E33 - - - - -
RS Stock No. 622-1146
Mfr. Part No.5SE2280
BrandSiemens
TWD411.50
Each (In a Pack of 10)
units
80 A D03 400 V ac GG - 8 kA @ 250 V dc, 50 kA @ 400 V ac -5°C +40°C Blue Ceramic
RS Stock No. 413-636
Mfr. Part No.2312402
BrandETI
TWD51.80
Each (In a Pack of 5)
units
4 A DII 500 V ac GG - gL E27 - - - Brown Ceramic
RS Stock No. 898-3376
Mfr. Part No.16D16FB
BrandAltech
TWD97.10
Each (In a Pack of 25)
units
16 A DII 500 V ac - E27 - - - Grey Glass
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. 181-8523
Mfr. Part No.6D16
TWD257.10
Each (In a Box of 10)
units
6 A DI 500 V ac GG E16 50 kA @ 500 V ac - - Green -
RS Stock No. 899-9721
Mfr. Part No.4D27FB
BrandAltech
TWD84.90
Each (In a Pack of 10)
units
4 A DII 500 V ac - E27 - - - Brown Glass
RS Stock No. 181-8474
Mfr. Part No.25D27
TWD2,745.00
1 Box of 25
Box(es)
25 A DII 500 V ac GG E27 50 kA @ 500 V ac - - Yellow -
RS Stock No. 899-3427
Mfr. Part No.2D16FB
BrandAltech
TWD94.30
Each (In a Pack of 10)
units
2 A DI 500 V ac - E16 - - - Pink Glass
RS Stock No. 377-0673
Mfr. Part No.R200713
BrandMersen
TWD198.00
Each (In a Pack of 5)
units
25 A D02 440 V ac GR E18 - -40°C - - Ceramic
RS Stock No. 899-9753
Mfr. Part No.50D33FB
BrandAltech
TWD104.60
Each (In a Pack of 5)
units
50 A DIII 500 V ac - E33 - - - White Glass
RS Stock No. 422-551
Mfr. Part No.10-005-07/20A
BrandSIBA
TWD135.80
Each (In a Pack of 5)
units
20 A DII 500 V ac GR E27 50 kA - - Grey Ceramic