RT-E Pressure Switch, Differential Pressure Switch & Thermostat

Brand: Danfoss

The RT-E series consist of pressure and differential pressure switches as well as thermostats. The units are designed for industrial refrigeration and general industrial application in explosive zones According to 94/9/EC, Atex directive, explosive zone 1, for surface equipment, category 2. 

It includes usage in refrigeration systems with ammonia, hydrocarbons and other applications where presence of flammable gases, vapours and mists are likely to occur. 

RT-E pressure switches and thermostats for use in explosive zones incorporate SPDT changeover switch where contact position depends on pressure or temperature value of the system.
Features
  • Designed for use in explosive zone 1
  • Versions with enclosure IP66
  • Stainless steel frame
  • Metallized front cover without window
  • Gold plated contacts

Specifications

Brand

Ambient Temperature Range

  • -20° to 65° C (-4° to 149° F)

Applications

  • General Industrial Applications
  • Industrial Refrigeration Equipment

Approvals & Certifications

  • CCC
  • CE Marked According to EN 60947-4/-5, PED 97/23/EC Category IV, Safety Equipment: RTE6AEW, RTE6AEB, RTE6AES
  • Demko 14-ATEX-1406X, Marking: Ex II 2 G Ex ia IIC T6 to T1 Gb
  • EAC
  • IECEx ULD 14.0013X
  • PED: 97/23/EC

BSP Connection

  • G 3/8” A Male

Cable Entry

  • 2 x PG 13.5 for Cable Diameter 6 to 14 mm

Capillary Length

  • 6.56 feet (2 metres) - Capillary Tube (Thermostats)

Differential Pressure

  • psi: 0 to 58.02 (kPa: 0 to 400, bar: 0 to 4)

Electrical Contacts

  • Gold-Plated AgCdO - Contact Material

Environmental Protection

  • IP54
  • IP66

Materials of Construction

  • Contact Material: Gold-Plated AgCdO

Sensor / Probe Material

  • Sensor Pockets of RT-E Thermostat: 18/8 Stainless Steel
  • Sensor Pockets of RT-E Thermostat: Brass

Set Point - Decreasing

  • -5° to 250° C (23° to 482° F)
  • bar: -0.8 to 30
  • kPa: -80 to 3,000
  • psi: -11.6 to 435.1

Set Point - Increasing

  • -5° to 250° C (23° to 482° F)
  • bar: -0.8 to 30
  • kPa: -80 to 3,000
  • psi: -11.6 to 435.1

Supply Pressure - Maximum

  • psi: 101.5 to 609.2 (Kpa: 700 to 4,200, bar: 7 to 42)

Switch Type

  • SPDT

System Pressure

  • bar: 42
  • kPa: 4,200
  • psi: 609

Wiring

  • 0.75 mm² Min.

  • Industrial Refrigeration Equipment
  • General Industrial Applications
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