General
Bimetallic switches are used in the electrical industry for automatic temperature control and are available as normally open or normally closed devices. They limit the temperature of equipment or parts, and automatically reset after cooling. Bimetallic switches are offered in three different versions: C0x, S0x and L0x.

Application
Due to their good resistance to pressure, bimetallic switches are installed on or in the winding of electrical equipment.

C01/02 and C06/08 series models are immune to current, they possess a non-insulated metal casing and are carry current. They are used in areas that are adequately insulation, or where no housing insulation is required.

S01/02 and S06/08 series models are immune to current and are isolated. The isolation is achieved by applying a Kynar shrinking tube, Mylar (for temperatures below ≤ 130 ° C) or Nomex cover (for temperatures above ≥ 135 ° C). The switches have a high dielectric strength of up to 2 kV AC at 50Hz and 1 min. and fulfil the Class I VDE. They are particularly suited for installation in windings of motors, transformers and coils.

L0x series models are temperature controllers seated in an aluminium casing with epoxy casting on the connection side and are immune to current. They are suitable for fastening to cooling elements, transformer plates etc. The switches have a high dielectric strength of up to 2 kV AC at 50Hz and 1 min. and fulfil the Class I VDE. Available as make and break contact.

Functional principle
The bimetallic switch is defined by its nominal operating temperature.

Heating technology : bimetallic
Temperature : Min.: