The JUMO ATH-11 is a surface-mounted dual thermostat designed for monitoring and controlling thermal processes. It operates on the liquid expansion principle and uses a microswitch as the electrical switching element.

General Information

• Manufacturer: JUMO GmbH & Co. KG
• Series: ATH (Surface-mounted thermostats)
• Model: ATH-11
• Type: Dual thermostat (two independent temperature settings)
• Protection Class: IP54 (sturdy housing for industrial use)

Operating Principle

• Works on the fluid expansion principle: temperature changes cause expansion/contraction in the sensing element, which actuates the microswitch.
• Provides reliable switching for heating/cooling circuits.
• Available as:
  • Temperature Controller (TR)
  • Temperature Monitor (TW)
  • Safety Temperature Monitor (STW)
  • Safety Temperature Limiter (STB)