Tubular element with mounted thermal fuse

– Compact design · Reliable function

Tubular element with mounted thermal fuse

Most of Backer’s heating elements can be equipped with a thermal fuse. This design offers a major advantage when compared to a separately mounted thermal cut-off.

Elements with dia. 8.5 or 14 mm can be equipped with a replaceable thermal fuse. The silicone rubber bushing containing a thermal fuse is pulled out from the element with a suitable tool. A new unit is then easily mounted.
In elements with permanently mounted fuse the thermal fuse is moulded with compound at the sealing operation and is not replaceable. When the thermal fuse has tripped, the element must be replaced.

Technical data

Cut off temperature	To establish correct cut-off temperature, measurements have to be done under normal condition. The cut-off temperature is recommended to be at least 25-30°C above the maximum temperature of the thermal fuse at normal operation.
Connection	With permanently mounted thermal fuses normal flat pin connectors can be used. As an alternative connection cables can be spot welded directly on the terminal pin. Round pin connectors are preferred when replacable thermal fuses are used.
Standard	Heating elements with mounted thermal fuse are approved by SEMKO, VDE och UL.
Safety	Meet requirements per EN 60335-1
Standard	Electrical heat protection and thermal fuse
Cut-off temp. Stand Tol 0/-4°C	66, 72, 91, 98, 109, 128, 14, 152, 184, 216, 228°C

Tube diam

Replaceable

Perm
mounted

Number of
fuses

Ø 6,4 mm

X

1

Ø 8,5 mm

X

1

Ø 14 mm/2

X

1-2

Ø 14 mm/3

X

1-3

Benefits

Compact design
No extra cable connection is required
Premounted inside the element
Reliable function, power is cut close to the heating source
Low total cost for the function

Examples of applications

Washing machines
Dish washers
Coffee machines
Photographic processors
Air heating with forced air flow

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