Danfoss RT-E Data sheet
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
explosive zones acc. to 2014/34/EU
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.
application in
Atex directive,
Features
Approvals
• Designed for use in explosive zone 1
• Versions with enclosure IP66
• Stainless steel frame
CE marked, according to EN 60947-4/-5
IECEx ULD 14.0013X
DEMKO 14 ATEX 1406X
marking: Ex II 2G Ex ia IIC T6...T1 Gb
CE marked acc. to 2014/68/EU category IV, safety
equipment: RTE6AEW, RTE6AEB, RTE6AES
• Metallized front cover without window
• Gold plated contacts
• Safety Integrity Level:
SIL 2 according to IEC 61508
China Compulsory Certificate, CCC
EAC
© 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
Ordering
Enclosure *) IP66 or IP54 (version with external manual reset)
Ambient temperature - 20 – 65 °C
Cable entry 2 x Pg 13.5 Cable diameter: 6 – 14 mm
Contact material Gold plated AgCdO
Contact load Must be used with a certified Ex ia barrier satisf ying the input parameters
Contact system Single-pole changeovers switch (SPDT)
*) IP degree can only be obtained on enclosure without fractures / damages. RT-E must be protected against unintended impacts.
Pressure switches for R717 1), HCFC, HFC and HC refrigerants
Typ e
Regulating
range
Differential
Δp
[bar] [bar] [bar]
Max.
working
pressure PS
[bar]
Reset
+ welded
ø6.5/10 mm
G 3/8 A
nipple
Code no.
Connection
G 3/8 A
RT 112E 0.1 – 1.1 0.07 – 0.16 7 Auto — 017-518566
RT 113E 0.0 – 0.3 0.01 – 0.05 0.4 Auto — 017-51956 6
RT 121E -1.0 - 0.0 0.09 - 0.40 7 Auto — 017-6184 66
RT 1AE -0.8 – 5.0 0.5 – 1.6 22 Auto 017-500966 —
RT 116E 1 – 10 0.3 – 1.3 22 Auto — 017-520166
RT 5E 4 – 17 1.2 – 4 22 Auto — 017-525266
RT 6AEW 3) 5 – 25 3 34 2) Auto 017-51386 6 —
RT 6AEB 3) 10 – 28 1.5 34 2) Man. (Max.) 017-513466 —
RT 6AES 3) 10 – 28 1.5 34 2) Man. (Max.) 017-50 2166 —
RT 117E 10 – 30 1 – 4 42 Auto — 017-529 866
1
Only types with letter A are suitable for R717
2
Max. working pressure acc. to PED is limited to 28 bar
3
) W=Wächter (pressure control)
B = Begrenzer (pressure control with external reset)
S = Sicherheitsdruckbegrenzer (pressure control with internal reset)
Differential pressure switches for R717, HCFC, HFC and HC refrigerants
Typ e
Regulating
range
Differential
Δp
Operating
range for
LP bellows
Max.
working
pressure PS
Pressure
connection
Code no.
[bar] [bar] [bar] [bar]
3
G
/
A
RT 260AE 0.5 – 4 0.3 -1 – 18 22
RT 262AE 0.1 – 1.5 0.1 -1 – 9 11 017D 003 066
8
+ welded nipple
ø6 .5/10 mm
017D003666
Thermostats
Typ e
Regulating
range
[°C] [°C]
Differential Δp
at lowest
range setting
[°C] [°C]
at highest
range setting
Max.
sensor
temperatur
Type of
charge
Capillary
tube
length
[m]
Code no.
RT 9E -45 – -15 2.2 – 10 1 – 4.5 150 State Vapour 5 017- 61786 6
RT 14E -5 – 30 2 – 8 2 – 10 150 Adsorption 2 017-509 866
RT 14E -5 – 30 2 – 8 2 – 10 150 Adsorption 5 017-6179 66
RT 101E 25 – 90 2.4 – 10 3.5 – 20 300 Adsorption 2 017-512666
RT 101E 25 – 90 2.4 – 10 3.5 – 20 300 Adsorption 5 017-618066
RT 107E 70 – 150 6 – 25 1.8 – 8 215 Partial 2 017-51536 6
RT 107E 70 – 150 6 – 25 1.8 – 8 215 Partial 5 017-618266
RT 123E 150 – 250 6.5 – 30 1.8 – 9 300 Partial 2 017-521666
RT 123E 150 – 250 6.5 – 30 1.8 – 9 300 Partial 5 017-618366
Sensor pockets of RT-E thermostats
RT 14E, RT 107E, RT 123E, RT 101E Brass: 017-437066 18/8 stainless steel: 017-436966
© Danfoss | DCS (az) | 2018.03
DKRCC.PD.CB0.C5.02 | 520H12283 | 2
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