Examples of products
Tubular element with mounted thermal fuse
>> Description
Most of Backer’s heating elements can be equipped with a thermal fuse. This design offers a big advantage when compared to a separately mounted thermal cut-off.
Elements with diam. 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 acc. to EN 60335-1 |
Cut-off temp.
Stand Tol 0/-4°C |
66, 72, 91, 98, 109, 128, 14, 152, 184, 216, 228°C |
| Ø 6,4 mm |
|
X |
1 |
| Ø 8,5 mm |
X |
X |
1 |
| Ø 14 mm/2 |
X |
X |
1-2 |
| Ø 14 mm/3 |
X |
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
Download as pdf document
Thermostat and manually resettable thermal cut-offs
- For mounting inside tubular heating elements
The tubular heating elements with diam 8.5 mm can be equipped with a thermostat and a resettable thermal cut-off, mounted at the end of electrical tubular heating element. Heating elements with mounted thermal cut-off and/or thermostat are approved by SEMKO, VDE och UL and are particularly suitable at liquid heating.
To determine the breaking temperature of the resettable cut-off it is advisable to measure the temperature under normal conditions and in intended application. The breaking temperature is recommended to be at least 25-30°C above the maximum temperature of the thermal cut-off at normal operation.
>> Technical specification
|
| Type of design. |
BTS 085 060 (10) 130 |
BTC 085 060 (10) 130 |
| Cutting temp. |
60 (10) - 130°C |
60 (10) - 130°C |
| Tolerance |
+/- 5°K |
+/- 10°K |
| Operation |
+/- 1°K |
+/- 1°K |
| Max power |
250 V |
250 V |
| Max current |
10 A |
12 A |
| Contact resistance |
< 20m Ω |
< 20m Ω |
| Surrounding temperature |
T 180°C |
T 180°C |
| Certificate |
Semko Certifikat No. 945010701 |
Semko Certifikat No. 982103601 |
| Safety |
EN 60730-2-9:1995 |
EN 60730-2-9:1995 |
| Connection |
Standard tab terminals or cables spot welded to the termianl pin |
Download drawing
>> 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
- Dish washers
- Washing machines
- Photographic processors
- Boilers
- Coffee machines
- Air heating with forced air flow
download as pdf document