RTAS-EP Ambient Sensing Thermostat

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Chromalox RTAS-EP Ambient Sensing Power Box with EP T/STAT, DL integrated temperature controls.
  • Product Description
Chromalox RTAS is an ambient-sensing thermostat which is generally used for freeze protection in ordinary (non-hazardous) areas. The thermostat is mounted through the end of the oblique sided enclosure lid. In fact, because there is so much room in this model, multiple heating cables can be terminated. The stainless steel sheathed, inverted bellows probe provides good sensitivity, resulting in more accurate control.


  • Integrated Controls and Power Connections reduce installation hardware
  • Molded of Durable Plastic Material (Ryton® PPS)
  • High service Temperature
  • Corrosion Resistant
  • Thermal Stability
  • Non-Flammability
  • High Strength and Rigidity
  • Stainless Steel Sensor Sheath
  • Hermetically Sealed Switches on EP models permit control in Div. 2 hazardous areas
  • Stainless Steel Hardware to ensure the integrity of the system
  • Cable Terminations inside enclosure reduce installation time and cost
  • Liquid Tight Design prevents moisture from reaching the electrical connections. All models are rated NEMA 4X
UL Listed for ordinary areas
CSA Certified for ordinary and:

  • Class I, Div. 2, Groups A, B, C, D
  • Class II, Div. 2, Groups F, G
FM Approved for ordinary and:

  • Class I, Div. 2, Groups B, C, D
  • Class II, Div. 2, Groups F, G
  • Class III, Div. 2 Areas