These safety devices automatically switch off the current in the controlled circuit as the temperature is reached, and switch it on again as the tepmerature falls below the set threshold value. The temperature of the controlled medium is thus maintained within a narrow zone. The limiter makes a last full annexation in case of mechanics injury.
Working tepmerature range: 120 – 355 °C
Areas of application:
- water heaters, hot water storage tanks
Trouble-free operation is conditioned by proper heat transfer between the controller's sensor and the controlled medium.