JUMO Safety Temperature Limiter/Monitor

Description

The JUMO 701140 is a versatile and reliable safety temperature limiter (STB) and safety temperature monitor (STW) designed for critical thermal process control. This programmable device ensures safe operation by switching off processes when a set limit temperature is reached. Housed in a compact DIN-rail mountable enclosure, it features an intuitive LCD display and keypad for easy setup and monitoring. It is an ideal solution for applications in furnace construction, apparatus engineering, and other industries where over-temperature protection is paramount.

Specifications

• Manufacturer: JUMO
• Type: 701140/8888-888-22/064
• Supply Voltage: 20 to 53V AC/DC
• Frequency: 48 to 63Hz
• Power Consumption: 5VA
• Output Relay: 1x Normally Open, 3A / 230V AC (Resistive Load)
• Display: LCD
• Mounting: DIN Rail
• Protection Class: IP20

Label Info

• Typ: 701140/8888-888-22/064
• VARTN: 70/00387537
• F-Nr: 009105970100518 0031

Application

This device is used for monitoring and limiting temperatures in various industrial processes. Common applications include protecting heaters, monitoring thermal oil systems, and general safety management in machinery and plant construction.

Country of Origin

Made in Germany.

CO2 Impact

By reusing this part, you are contributing to a circular economy and avoiding approximately 8.0 kg of CO2 emissions associated with the production of a new one.

Availability

This is an obsolete but readily available item. Order now from PLC2Day for expert support and fast delivery.

FAQ

In STB mode, the device latches in a safe state after a fault and requires a manual reset. In STW mode, it can reset automatically once the temperature returns to a safe range, making it suitable for less critical monitoring tasks.

JUMO controllers in this series can be configured for various inputs, including RTD temperature probes (like Pt100, Pt1000) and various types of thermocouples (e.g., Type K, J, S). The exact configuration is determined by the specific sub-model code.

A manual reset is required. This can be done by pressing the 'Reset' button on the front of the unit or via an external reset switch connected to the designated terminals, after the process temperature has fallen below the set limit by a certain hysteresis value.

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Last Update: Friday, March 13, 2026