Interrupted thermocouple LF L3440067

A thermocouple measures temperature by generating a small voltage where two different metals meet. In professional catering equipment, this voltage signals the control system to regulate heat, keeping boiling pans, fryers and ovens at the exact temperature the chef sets. An interrupted thermocouple breaks the circuit when the probe is removed, stopping the signal and cutting power to the burner or element as a safety measure. This prevents overheating and gas leaks when the appliance is open or the probe is damaged.

The operator fits the thermocouple into the appliance port, securing it with the M9x1 thread. Once in place, the probe extends into the cooking chamber or vat, sensing the temperature of the oil, water or air. The control system reads the voltage and adjusts the burner or heating element to maintain the set point. If the probe is withdrawn or the connection is broken, the safety circuit activates, shutting off the heat source immediately.

This LF thermocouple is constructed with a 1000 mm probe, allowing it to reach deep into large boiling pans and ovens. The interrupted design includes terminals that disconnect when the probe is unthreaded, ensuring the safety circuit engages without delay. The length and thread size suit the listed models of AMBACH, ANGELO PO, BARON, EMMEPI, FAGOR, GIGA, MARENO, MBM and SAGI equipment.

The M9x1 thread provides a secure, leak-proof connection to the appliance, while the 1000 mm length positions the sensing tip where the temperature is most critical. This specification ensures the thermocouple can monitor the full depth of a boiling pan or the centre of an oven cavity, giving consistent readings across the cooking process.

Cleaning involves removing the probe from the appliance and wiping it with a damp cloth to clear any oil or food residue. The interrupted terminals should be checked for corrosion or loose connections, as these can affect the safety circuit. Regular inspection ensures the thermocouple continues to provide accurate temperature control and reliable safety shutdowns.

This interrupted thermocouple fits a wide range of professional catering equipment, including gas and electric boiling pans, fryers, convection ovens, fry tops and blast chillers from the listed brands. It is categorised under temperature control components in the LF catalogue.