Duct sensor The DS-600 is a thermistor based duct sensor designed to work with Thermolec’s thermostats and electronic controllers to modulate the heater’s capacity according to the heat required. In most cases the DS-600 is used with Thermolec’s 0-10 VDC Room Thermostat to allow...

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...

Magnetic contactors are used for stage switching and/or back-up for safety devices. Approved for 250,000 cycles. Magnetic contactors are cost effective and safe.