Data sheet
Pressure switch, Differential pressure switch and Thermostat
RT-E
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 acc. to 2014/34/EU 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 |
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Designed for use in explosive zone 1 |
• Metallized front cover without window |
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• Versions with enclosure IP66 |
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Gold plated contacts |
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Stainless steel frame |
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Safety Integrity Level: |
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SIL 2 according to IEC 61508 |
Approvals |
CE marked, according to EN 60947-4/-5 |
China Compulsory Certificate, CCC |
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IECEx ULD 14.0013X |
EAC |
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DEMKO 14 ATEX 1406X |
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marking: Ex II 2G Ex ia IIC T6...T1 Gb |
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CE marked acc. to 2014/68/EU category IV, safety |
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equipment: RTE6AEW, RTE6AEB, RTE6AES |
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© Danfoss | DCS (az) | 2018.03 |
DKRCC.PD.CB0.C5.02 | 520H12283 | 1 |
Data sheet | Pressure switch, Differential Pressure switch and Thermostat, RT-E
Technical data |
Enclosure *) |
IP66 or IP54 (version with external manual reset) |
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Ambient temperature |
- 20 – 65 °C |
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Cable entry |
2 x Pg 13.5 Cable diameter: 6 – 14 mm |
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Contact material |
Gold plated AgCdO |
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Contact load |
Must be used with a certified Ex ia barrier satisfying the input parameters |
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Contact system |
Single-pole changeovers switch (SPDT) |
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*) IP degree can only be obtained on enclosure without fractures / damages. RT-E must be protected against unintended impacts.
Ordering |
Pressure switches for R717 1), HCFC, HFC and HC refrigerants |
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Max. |
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Code no. |
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Regulating |
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Differential |
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working |
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Connection |
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range |
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Δp |
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pressure PS |
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Type |
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Reset |
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G 3/8 A |
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[bar] |
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+ welded |
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G 3/8 A |
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[bar] |
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[bar] |
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[bar] |
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nipple |
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ø6.5/10 mm |
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RT 112E |
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0.1 – 1.1 |
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0.07 – 0.16 |
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7 |
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Auto |
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— |
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017-518566 |
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RT 113E |
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0.0 – 0.3 |
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0.01 – 0.05 |
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0.4 |
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Auto |
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— |
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017-519566 |
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RT 121E |
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-1.0 - 0.0 |
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0.09 - 0.40 |
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7 |
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Auto |
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— |
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017-618466 |
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RT 1AE |
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-0.8 – 5.0 |
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0.5 – 1.6 |
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22 |
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Auto |
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017-500966 |
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— |
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RT 116E |
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1 – 10 |
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0.3 – 1.3 |
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22 |
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Auto |
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— |
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017-520166 |
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RT 5E |
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4 – 17 |
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1.2 – 4 |
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22 |
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Auto |
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— |
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017-525266 |
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RT 6AEW 3) |
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5 – 25 |
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3 |
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34 2) |
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Auto |
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017-513866 |
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RT 6AEB 3) |
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10 – 28 |
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1.5 |
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34 2) |
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Man. (Max.) |
017-513466 |
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RT 6AES 3) |
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10 – 28 |
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1.5 |
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34 2) |
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Man. (Max.) |
017-502166 |
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RT 117E |
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10 – 30 |
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1 – 4 |
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42 |
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Auto |
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— |
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017-529866 |
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1) Only types with letter A are suitable for R717 |
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2) Max. working pressure acc. to PED is limited to 28 bar |
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3) W=Wächter (pressure control) |
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B = Begrenzer (pressure control with external reset) |
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S = Sicherheitsdruckbegrenzer (pressure control with internal reset) |
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Differential pressure switches for R717, HCFC, HFC and HC refrigerants |
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Regulating |
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Differential |
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Operating |
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Max. |
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range for |
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working |
Pressure |
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Type |
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range |
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Δp |
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Code no. |
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LP bellows |
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pressure PS |
connection |
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[bar] |
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[bar] |
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[bar] |
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[bar] |
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RT 260AE |
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0.5 – 4 |
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0.3 |
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-1 – 18 |
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22 |
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G 3/8 A |
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017D003666 |
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+ welded nipple |
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RT 262AE |
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0.1 – 1.5 |
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0.1 |
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-1 – 9 |
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11 |
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017D003066 |
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ø6.5/10 mm |
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Thermostats |
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Regulating |
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Differential Δp |
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Max. |
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Capillary |
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at lowest |
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at highest |
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sensor |
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Type of |
tube |
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Type |
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range |
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Code no. |
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temperatur |
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length |
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range setting |
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range setting |
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charge |
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[°C] |
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[°C] |
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[m] |
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[°C] |
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[°C] |
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RT 9E |
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-45 – -15 |
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2.2 – 10 |
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1 – 4.5 |
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150 |
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State Vapour |
5 |
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017-617866 |
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RT 14E |
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-5 – 30 |
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2 – 8 |
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2 – 10 |
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150 |
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Adsorption |
2 |
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017-509866 |
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RT 14E |
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-5 – 30 |
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2 – 8 |
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2 – 10 |
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150 |
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Adsorption |
5 |
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017-617966 |
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RT 101E |
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25 – 90 |
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2.4 – 10 |
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3.5 – 20 |
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300 |
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Adsorption |
2 |
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017-512666 |
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RT 101E |
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25 – 90 |
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2.4 – 10 |
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3.5 – 20 |
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300 |
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Adsorption |
5 |
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017-618066 |
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RT 107E |
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70 – 150 |
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6 – 25 |
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1.8 – 8 |
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215 |
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Partial |
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017-515366 |
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RT 107E |
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70 – 150 |
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6 – 25 |
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1.8 – 8 |
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215 |
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Partial |
5 |
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017-618266 |
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RT 123E |
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150 – 250 |
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6.5 – 30 |
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1.8 – 9 |
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300 |
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Partial |
2 |
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017-521666 |
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RT 123E |
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150 – 250 |
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6.5 – 30 |
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1.8 – 9 |
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300 |
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Partial |
5 |
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017-618366 |
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Sensor pockets of RT-E thermostats |
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RT 14E, RT 107E, RT 123E, RT 101E |
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Brass: 017-437066 |
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18/8 stainless steel: |
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017-436966 |
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© Danfoss | DCS (az) | 2018.03 |
DKRCC.PD.CB0.C5.02 | 520H12283 | 2 |