Page 220 - Electronic Mechanic - TP - Volume - 2

ELECTRONICS MECHANIC - CITS

1 Thermostat: Immersion heaters often include a thermostat to regulate the temperature of the water. When
the water reaches a certain temperature, the thermostat cuts off power to the heating element to prevent
overheating.

TYPICAL CONTROL THERMOSTAT TYPICAL SAFETY / MANUAL RESET THERMOSTAT
2 Safety features: Many immersion heaters are equipped with safety features such as a thermal cut-out switch.
This switch turns off the heater if it detects that the water level is too low or if the heater gets too hot.
3 Heating element: This is the part that actually generates the heat. It’s usually made of a conductive material
like copper, stainless steel, or an alloy. Electricity passes through the heating element, causing it to heat up.

4 Immersion tube: This is the part of the heater that is immersed in the water to heat it. It usually consists of a
metal tube that encases the heating element.
5 Terminal box: This is where the electrical connections are made. It houses the wiring and terminals that
connect the immersion heater to the power supply.

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CITS : E & H - Electronics Mechanic - Exercise 175