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. 377-0667
Mfr. Part No.H222923
BrandMersen
HK$76.716
Each (In a Pack of 5)
units
20 A D02 440 V ac GR E18 - -40°C - - Ceramic
RS Stock No. 377-0437
Mfr. Part No.Z219718
BrandMersen
HK$11.828
Each (In a Pack of 5)
units
2 A DII 500 V GG E27 - -40°C - Pink Ceramic
RS Stock No. 377-0279
Mfr. Part No.W213160
BrandMersen
HK$11.336
Each (In a Pack of 5)
units
25 A D02 400 V ac GG - 50 kA @ 500 V ac -40°C - Yellow Ceramic
RS Stock No. 377-0493
Mfr. Part No.X212540
BrandMersen
HK$8.594
Each (In a Pack of 5)
units
25 A DII 500 V GG E27 - -40°C - Yellow Ceramic
RS Stock No. 377-0566
Mfr. Part No.M214578
BrandMersen
HK$36.736
Each (In a Pack of 5)
units
10 A DII 500 V ac GR E27 50 kA -40°C - - Ceramic
RS Stock No. 377-0500
Mfr. Part No.C214063
BrandMersen
HK$14.474
Each (In a Pack of 5)
units
35 A DIII 500 V GG E33 - -40°C - Black Ceramic
RS Stock No. 377-0516
Mfr. Part No.K214576
BrandMersen
HK$13.63
Each (In a Pack of 5)
units
50 A DIII 500 V GG E33 - -40°C - White Ceramic
RS Stock No. 377-0588
Mfr. Part No.T215090
BrandMersen
HK$46.54
Each (In a Pack of 5)
units
16 A DII 500 V ac GR E27 50 kA -40°C - - Ceramic
RS Stock No. 377-0689
Mfr. Part No.F201255
BrandMersen
HK$100.01
Each (In a Pack of 5)
units
35 A D02 440 V ac GR E18 - -40°C - - Ceramic
RS Stock No. 377-0308
Mfr. Part No.D215191
BrandMersen
HK$15.558
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. 377-0651
Mfr. Part No.Y218153
BrandMersen
HK$54.662
Each (In a Pack of 5)
units
63 A DIII 500 V ac GR E33 50 kA -40°C - - Ceramic
RS Stock No. 377-0594
Mfr. Part No.T215596
BrandMersen
HK$34.618
Each (In a Pack of 5)
units
20 A DII 500 V ac GR E27 50 kA -40°C - - Ceramic
RS Stock No. 377-0235
Mfr. Part No.B215695
BrandMersen
HK$13.074
Each (In a Pack of 5)
units
6 A D01 400 V ac GG - 100 kA - - Green Ceramic
RS Stock No. 377-0617
Mfr. Part No.Y216612
BrandMersen
HK$55.41
Each (In a Pack of 5)
units
30 A DII 500 V ac GR E27 50 kA -40°C - - Ceramic
RS Stock No. 377-0257
Mfr. Part No.R223023
BrandMersen
HK$9.432
Each (In a Pack of 5)
units
16 A D01 400 V ac GG - 100 kA -40°C - Grey Ceramic
RS Stock No. 377-0459
Mfr. Part No.B222917
BrandMersen
HK$11.436
Each (In a Pack of 5)
units
6 A DII 500 V GG - gL E27 - -40°C - Green Ceramic
RS Stock No. 377-0314
Mfr. Part No.C201873
BrandMersen
HK$13.262
Each (In a Pack of 5)
units
63 A D02 400 V ac GG - 50 kA @ 500 V ac - - Copper Ceramic
RS Stock No. 377-0336
Mfr. Part No.N212647
BrandMersen
HK$71.472
Each (In a Pack of 5)
units
100 A D03 400 V ac GG - 50 kA -40°C - Red Ceramic
RS Stock No. 377-0487
Mfr. Part No.A211508
BrandMersen
HK$9.814
Each (In a Pack of 5)
units
20 A DII 500 V GG E27 - -40°C - Blue Ceramic
RS Stock No. 377-0421
Mfr. Part No.Q215593
BrandMersen
HK$9.806
Each (In a Pack of 5)
units
25 A DI 500 V GG E16 - -40°C - Yellow Ceramic