Heating Element, 3 kW, 220 V ac

Hot water is a basic essential to every day life and is a necessity. You can fill this requirement with this quality RS PRO Over-the-side heater elements come with a choice of sheath materials for use in open vats or vessels.

Primarily designed for use in water (see note).

• Easily wired robust and spacious terminal box with integral earthing terminal
• Voltage rateings from 220 V ac and power ratings from 3 kW.
• Mild steel heating element material
• Easily wired robust and spacious terminal box with inegral earthing terminal

• Water heating applications

How do water heater elements work?
A water heating element is a pair of upper and lower heating elements that fit into a water heater of some sort. An electric current is passed through the elements which then heats the cold water to the selected required temperature. The temperature is set externally on the thermostat.

What causes water heater elements to burn out?
Below are some causes:

• Power surge - a sudden voltage increase to the element caused by a power surge can be enough to burn out an element.


• Wires - a bad connection can cause an element to stop working.


• Thermostat tripping out- these have a high limit switch that shuts off power to the elements when temperatures exceed normal.


• Minerals - sediment collects at the bottom of the water heater tank, encasing the lower element. Forced to work harder, the element eventually fails.


• Air pockets - these allow the upper element to burn while not immersed in water, resulting in failure.

Although these elements are designed for use in water, it is possible to use these elements in a variety of solutions, however it is recommended that you consult the manufacturer prior to specification.
When installed the lower heated part must be completely immersed.