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...

A built-in control transformer is required on most heaters to supply 24 volts to the control circuits. A Class II transformer has built-in safety protection and does not require primary fusing. Primary and secondary fuses can be supplied upon request.

The D35 pre-calibrated electronic controller is Thermolec’s most flexible controller with four different input options on a single board. Jumper configurations are clearly indicated on the label and may be changed at any time. Control signals supported are Thermistor for Thermole...