Surface-mounted thermostat ATHs-70 230 V, control range 30-110°C, immersion tube 8 x 150 mm

• Thermostat design, ATH series

Protection class IP 54

• Thermostats regulate and monitor thermal processes. Devices in the ATH series are available as temperature controllers (TR), temperature monitors (TW), and safety thermostats.

Temperature monitors (STB) and safety temperature limiters (STB) are available. In the event of a malfunction, the STB puts the monitored system into a safe operating mode.

• Condition. Construction: Thermostats operate on the principle of fluid expansion; a microswitch serves as the electrical switching element.

Temperature controller TR and temperature monitor TW

If the temperature at the temperature sensor exceeds the set temperature...

The setpoint is actuated via the translation mechanism of the microswitches and the

Circuit opened or closed. When the set value is undershot.

The microswitch returns to its initial position once the setpoint value (around the switching differential) is reached.

brought.

Self-monitoring at the safety temperature limiter (STB)

and safety temperature monitor STW (STB)

If the measuring system is destroyed, i.e., if the expansion fluid escapes,

In the case of STB and STW (STB), the pressure in the diaphragm drops and it opens permanently.

The circuit. Unlocking is no longer possible. When the sensor cools down...

• The circuit is also opened when the temperature drops below approximately 20°C.
• If the temperature rises above approximately 20°C, the STB must be reset by pressing the reset button.

It must first be unlocked manually. Reactivation at the STW (STB) is carried out

automatic.

Restart lockout on the safety temperature limiter (STB)

If the temperature at the temperature sensor exceeds the set temperature...

When the limit is reached, the circuit is opened and the microswitch is mechanically locked.

After the danger temperature falls below approximately 10% of the scale range.

(approx. 15% at limit setting > +350°C) the microswitch can be manually unlocked.

become.

• Immersion tube with DN 15 (1/2”) connection
• Sensors: 8 x 150 mm
• Max. switching current: AC 230 V/10 Amp.