Stem thermostat TH 143 20-140°C APATOR - TH143

Stem thermostat TH 143 20-140°C APATOR - TH143

Description

• The temperature-sensitive element is the thermostat stem, which is made of an expanding brass tube in TH 140 and TH 143 and an anti-corrosion tube in TH 141 and TH 144.
• The thermal expansion of the pipe is transmitted by the Invar rod via a lever transmission to the switching mechanism, which is located in the waterproof head.
• The control knob for setting the desired temperature is also enclosed in a waterproof head and can be locked to prevent the switch-off temperature from being adjusted, for example due to vibrations.
• for attaching the thermostat in a regulated environment. The union nut on the thermostat stem is used
• Thermostats TH 140 and TH 141 are designed for DC loads - the switching contacts are bridged by quenching capacitors
• Thermostats TH 143 and TH 144 are designed for alternating loads