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. 900-1572
Mfr. Part No.6D27FB
BrandAltech
TWD81.00
Each (In a Pack of 10)
units
6 A DII 500 V ac - E27 - - - Green Glass
RS Stock No. 899-0936
Mfr. Part No.25D27FB
BrandAltech
TWD77.40
Each (In a Pack of 10)
units
25 A DII 500 V ac - E27 - - - Yellow Glass
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. 898-1272
Mfr. Part No.10D16FB
BrandAltech
TWD97.10
Each (In a Pack of 10)
units
- DI - - E16 - - - - -
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. 898-1285
Mfr. Part No.10D27SC
BrandAltech
TWD232.00
Each (In a Pack of 5)
units
10 A DII 500 V ac GR E27 - - - Red Glass
RS Stock No. 898-3405
Mfr. Part No.16NZ01GL
BrandAltech
TWD107.60
Each (In a Pack of 10)
units
- - - - - - - - - -
RS Stock No. 899-0942
Mfr. Part No.25NZ02GL
BrandAltech
TWD107.60
Each (In a Pack of 10)
units
25 A - 380 V ac - - - - - - Glass
RS Stock No. 899-9765
Mfr. Part No.50D33SC
BrandAltech
TWD535.60
Each (In a Pack of 5)
units
50 A DIII 500 V ac GR E33 - - - White Glass
RS Stock No. 900-1576
Mfr. Part No.6D27SB
BrandAltech
TWD77.40
Each (In a Pack of 10)
units
6 A DII 500 V ac GG E27 - - - Green Glass
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. 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. 900-1526
Mfr. Part No.63D33SC
BrandAltech
TWD535.60
Each (In a Pack of 5)
units
63 A DIII 500 V ac GR E33 - - - Copper Glass
RS Stock No. 899-3988
Mfr. Part No.35D33SB
BrandAltech
TWD97.10
Each (In a Pack of 10)
units
35 A DIII 500 V ac GG E33 - - - Black Glass
RS Stock No. 898-1291
Mfr. Part No.10NZ01GL
BrandAltech
TWD107.60
Each (In a Pack of 10)
units
10 A - - - - - - - - -
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. 899-3991
Mfr. Part No.35NZ02GL
BrandAltech
TWD178.00
Each
units
35 A - 380 V ac - - - - - - Glass
RS Stock No. 899-0945
Mfr. Part No.25D27SB
BrandAltech
TWD77.40
Each (In a Pack of 10)
units
25 A DII 500 V ac GG E27 - - - Yellow Glass
RS Stock No. 899-0715
Mfr. Part No.20D16SC
BrandAltech
TWD240.40
Each (In a Pack of 25)
units
20 A DI 500 V ac GR E16 - - - Blue Glass
RS Stock No. 900-1560
Mfr. Part No.6D16SB
BrandAltech
TWD97.10
Each (In a Pack of 10)
units
6 A DI 500 V ac GG E16 - - - Green Glass