The JUMO EMF-134 is a panel-mounted thermostat from the EM series, designed for temperature control, monitoring, and safety limiting in industrial applications. It uses the fluid expansion principle with a microswitch as the electrical switching element, and is available in versions for temperature controllers (TR), temperature monitors (TW), and safety temperature limiters (TB/STB).

Key Specifications of JUMO EMF-134

• Type: Panel-mounted thermostat (EM series)
• Functions:
  • Temperature controller (TR): Regulates process temperature
  • Temperature monitor (TW): Ensures temperature stays within safe operating limits
  • Safety temperature limiter (STB): Shuts down equipment if temperature exceeds critical threshold
• Switching Element: Single-pole snap-action microswitch
• Operating Principle: Fluid expansion system actuates the microswitch when setpoint is reached
• Temperature Range: Depending on model variant (commonly 0–120 °C, 0–300 °C)
• Reset Options:
  • Automatic reset for TR/TW
  • Manual reset for STB safety limiter
• Mounting: Panel-mounted design for integration into control panels
• Approvals: Tested according to DIN EN 14597 and compliant with Pressure Equipment Directive 97/23/EC