Thermorex TK-AA-01

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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.

Application	Note
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.

TK-AA-01

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Parameter	Value
Nominal voltage, V, not more	250
Nominal current, A, at 250VAC, not more	5
Nominal current, A, at 250VAC, not more	2
Switching cycles, at 250VAC and 5A, not less than	10000
Switching cycles, at 250VAC and 2A, not less than	100000
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 than	10 \| 40
Contact resistance, Ω not more	0.05
Electric strength of insulation, V, not less than	1200
Insulation resistance, MΩ, not less than	50
Heating speed, K/min	minimum-0.1, maximum-1.0
Hermetic seal	1 × 10⁻⁵ atm·cc/sec

Parameter

Value

Nominal voltage, V, not more

250

Nominal current, A, at 250VAC, not more

Switching cycles, at 250VAC and 5A, not less than

10000

Switching cycles, at 250VAC and 2A, not less than

100000

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 than

10 | 40

Contact resistance, Ω not more

0.05

Electric strength of insulation, V, not less than

1200

Insulation resistance, MΩ, not less than

Heating speed, K/min

minimum-0.1, maximum-1.0

Hermetic seal

1 × 10⁻⁵ atm·cc/sec

THERMOREX TK-AA-01

Application

Note

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.

Parameter	Value
Nominal voltage, V, not more	250
Nominal current, A, at 250VAC, not more	5
Nominal current, A, at 250VAC, not more	2
Switching cycles, at 250VAC and 5A, not less than	10000
Switching cycles, at 250VAC and 2A, not less than	100000
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 than	10 \| 40
Contact resistance, Ω not more	0.05
Electric strength of insulation, V, not less than	1200
Insulation resistance, MΩ, not less than	50
Heating speed, K/min	minimum-0.1, maximum-1.0
Hermetic seal	1 × 10⁻⁵ atm·cc/sec