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. 377-0459
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. 396-023
Mfr. Part No.5SC211
BrandSiemens
TWD793.00
Each (In a Pack of 3)
units
80 A DIV 500 V ac GG - 8 kA @ 400 V dc, 50 kA @ 500 V ac -5°C +40°C Silver Ceramic
RS Stock No. 899-0712
Mfr. Part No.20D27SB
BrandAltech
TWD77.40
Each (In a Pack of 10)
units
20 A DII 500 V ac GG E27 - - - Blue Glass
RS Stock No. 421-491
Mfr. Part No.10-005-07/16A
BrandSIBA
TWD127.60
Each (In a Pack of 5)
units
16 A DII 500 V ac GR E27 50 kA - - - Ceramic
RS Stock No. 622-1051
Mfr. Part No.5SE2310
BrandSiemens
TWD30.10
Each (In a Pack of 10)
units
10 A D01 400 V ac GG - 8 kA @ 250 V dc, 50 kA @ 400 V ac -5°C +40°C Red Ceramic
RS Stock No. 622-0907
Mfr. Part No.5SE2302
BrandSiemens
TWD39.70
Each (In a Pack of 10)
units
2 A D01 400 V ac GG - 8 kA @ 250 V dc, 50 kA @ 400 V ac -5°C +40°C Pink Ceramic
RS Stock No. 377-0538
Mfr. Part No.Z212542
BrandMersen
TWD166.80
Each (In a Pack of 5)
units
2 A DII 500 V ac GR E27 50 kA -40°C - - Ceramic
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. 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. 899-9715
Mfr. Part No.4D16FB
BrandAltech
TWD97.10
Each (In a Pack of 10)
units
4 A DI 500 V ac GR E16 - - - Brown Glass
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. 421-441
Mfr. Part No.10-028-07/63A
BrandSIBA
TWD211.00
Each (In a Pack of 5)
units
63 A D02 440 V ac GR E18 - - - - 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. 899-3420
Mfr. Part No.2D16SB
BrandAltech
TWD94.30
Each (In a Pack of 10)
units
2 A DI 500 V ac GG E16 - - - Pink Glass
RS Stock No. 181-8902
Mfr. Part No.16D27Q
TWD124.00
Each
units
16 A DII 500 V ac GG E27 50 kA @ 500 V ac - - Grey -
RS Stock No. 377-0386
Mfr. Part No.B214062
BrandMersen
TWD35.80
Each (In a Pack of 5)
units
10 A DI 500 V GG E16 - -40°C - Red Ceramic
RS Stock No. 421-558
Mfr. Part No.10-002-04/1A
BrandSIBA
TWD130.20
Each (In a Pack of 5)
units
1 A DI 500 V ac GG - gL E16 50 kA - - - Ceramic
RS Stock No. 413-686
Mfr. Part No.2312407
BrandETI
TWD38.00
Each (In a Pack of 5)
units
25 A DII 500 V ac GG - gL E27 - - - Yellow Ceramic
RS Stock No. 377-0617
Mfr. Part No.Y216612
BrandMersen
TWD192.00
Each (In a Pack of 5)
units
30 A DII 500 V ac GR E27 50 kA -40°C - - Ceramic
RS Stock No. 181-8495
Mfr. Part No.63D33
TWD4,974.00
1 Box of 25
Box(es)
63 A DIII 500 V ac GG E33 50 kA @ 500 V ac - - Copper -