The JUMO ATH-SE-70 is a surface-mounted thermostat designed for industrial heating and process applications. It operates on the fluid expansion principle, uses a microswitch for switching, and is available as a temperature controller, monitor, or safety limiter.

General Information

• Manufacturer: JUMO GmbH & Co. KG
• Series: ATH-SE (Surface-mounted thermostats)
• Model: ATH-SE-70
• Protection Class: IP54 (robust housing for industrial environments)
• Compliance: DIN EN 14597, Pressure Equipment Directive 2014/68/EU

Operating Principle

• Works on the fluid expansion principle: temperature changes expand fluid in the sensing system, actuating a microswitch.
• Microswitch: Single-pole snap-action switch ensures reliable electrical switching.
• Safety Function: In case of fluid leakage or pressure drop, the system automatically switches to a safe state.

Technical Features

• Control Range: Typically up to 500 °C (variant-specific)
• Switching Element: Single-pole snap-action microswitch
• Variants Available:
  • Temperature Controller (TR)
  • Temperature Monitor (TW)
  • Temperature Limiter (TB)
  • Safety Temperature Monitor (STW)
  • Safety Temperature Limiter (STB)