This device is a JUMO ATH-2 Surface-Mounted Thermostat, designed for temperature monitoring and control in industrial applications.

Based on the identification plate in your image, here is the technical data sheet for this specific unit:

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Technical Data Sheet: JUMO ATH-2

1. General Information

• Manufacturer: JUMO GmbH & Co. KG (Fulda, Germany)

• Type (TYP): ATH-2

• Part Number (VARTN): 60/60000621

• Fabrication Number (F-NR): 014968820101041

• Approval Standards: DIN Geprüft (Tested), CE, EAC

2. Operating Specifications

• Control Range: +100 to +300°C

• Switching Capacity: AC 16 (2.5) A, 230 V

  • Note: The label indicates “AC 6(1.2)A 230 V” for this specific variant.

• Max. Ambient Temperature (T): 80°C

• Protection Rating: IP54 (Dust protected and splash-proof)

• Time Constant: $1 \text{ K/min}$ (Heating rate in water/oil)

3. Electrical Connection & Switching Function

• Contact Type: Single-pole changeover (SPDT) switch.

• Terminal Wiring (as per diagram):

  • 1: Common

  • 2: Breaks on temperature rise (NC)

  • 4: Closes on temperature rise (NO)

• Switching Differential: Typically 3-4% of the scale range (approx. 6-12°C for this model).

4. Mechanical Construction

• Housing: Impact-resistant plastic (Polycarbonate) with a die-cast aluminum base.

• Mounting: Surface mounting via the rear or a thermowell/immersion sleeve.

• Sensor Type: Liquid-filled capillary system.

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Usage Notes

• Calibration: This ATH-2 is a Temperature Controller (TR). If the temperature exceeds the setpoint, the contact switches. When the temperature falls below the setpoint (minus the differential), the contact resets automatically.

• Applications: Ideal for heat transfer systems, ovens, and large-scale industrial heating units requiring high-temperature regulation.

data sheet

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