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Thermorex TK-AA-01

Hermetic bimetalic temperature sensitive switch or cyclic operation device with automatic reset control.

THERMOREX TK-AA-01

The TK-AA-01 thermal limiter is the hermetic and high reliability product consists of a single pole,single throw switch activated by a snap-action bimetal disc. The products are fully inspected thermally and mechanically which is giving the insurance to use them in military and aerospace applications to meet or exceed critical requirements. This is cyclic operating temperature sensitive device, which is intended to control the temperature between two particular values under normal operating conditions, automatically switching on or off the electrical circuit.Besides its variety of standard configurations the thermostat can also be customized to the specific technical needs of the customer,assuring maximum design flexibility and usage in broad range of temperature control applications with high requirements like military and aerospace.

ApplicationNote
This thermostat is widely used in a broad range of temperature control applications for military, industrial and aerospace.Besides its variety of standard configurations the thermostat can also be customized to the specific technical needs of the customer.
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ParameterValue
Nominal voltage, V, not more250
Nominal current, A, at 250VAC, not more5
Nominal current, A, at 250VAC, not more2
Switching cycles, at 250VAC and 5A, not less than10000
Switching cycles, at 250VAC and 2A, not less than100000
Response temperature range, °C-30°C — 180°C | 181°C — 260°C
Response temperature tolerance, %, but not less than °C±3; ±5 | ±6
Reset temperature, lower than response temperature on, °C, not less than10 | 40
Contact resistance, Ω not more0.05
Electric strength of insulation, V, not less than1200
Insulation resistance, MΩ, not less than50
Heating speed, K/minminimum-0.1, maximum-1.0
Hermetic seal1 × 10⁻⁵ atm·cc/sec