A built-in disconnect switch allows heaters to disconnect individually in order to perform maintenance tasks. It is a positive and inexpensive way to meet the safety rules. It also reduces the electrical installation costs because the disconnect switch is factory installed. Therm...

The automatic reset thermal cut-out is a fixed temperature disc type safety device that opens the control circuit when it’s set point is reached. It automatically resets and returns the heater to operating conditions when the overheating conditions have disappeared.

Mercury contactors are used for stage switching. Advantages: silent operation. Exceptionally reliable. Long life expectancy (Tested for 1,000,000 cycles) Note: Mercury contactors are position sensitive, hence it is important to specify in which position the heater is to be instal...