Type 605055, Explosion-proof surface-mounted thermostat
for zones 1, 2, 21, and 22
Special features
• Single thermostat and double thermostat with capillary or rigid thermowell
• Switching capacity up to 25 A
• Admissible ambient temperatures -55 °C to +70 °C
• Thermowell for use in zone 0 available as an accessory
• Quick and safer electrical connection through Push-In
• Stable switching points through standard ambient temperature compensation
Brief description
The explosion-proof surface-mounted thermostats of the JUMO exTHERM series are built to
monitor and control temperatures in potentially explosive areas. The use in environments with
gas and steam is permitted (zones 1 and 2); use in environments with conductive dust (zones
21 and 22) is also permitted.
®
terminal technology
JUMO exTHERM-AT double thermostat
Page 1/9
The JUMO exTHERM-AT is available as temperature monitor TW, safety temperature monitor
(STW), and safety temperature limiter (STB). The thermostats work according to the liquid expansion or gas expansion principle. The electrical switching element is a pressure-resistant encapsulated thermostat with a snap-action switch. Stable switching points when ambient
temperatures fluctuate are made possible by the standard ambient temperature compensation.
The thermostats of the JUMO exTHERM-AT series are RoHS conform and cadmium free.
Ver sion according to DIN EN 14597:
TWTemperature monitor
STWSafety temperature monitor
STBSafety temperature limiter
Temperature monitor TW and safety temperature monitor STW
If the temperature on the temperature probe
exceeds the setpoint value, the microswitch is
activated by the transmission mechanics and
the electrical circuit is opened or closed.
If the temperature falls below the selected setpoint value (by the amount of the switching
differential), the microswitch is reset to its initial position.
Temperature compensation
When the ambient temperature on the switching head and the capillary deviates – from the calibration ambient temperature of +22 °C – a switching point offset occurs. This switching point offset is reduced to a minimum due to the temperature compensation.
Case
MaterialPolyester case, glass fiber reinforced, black (option: stainless steel)
Protection typeEN 60529 - IP66 (polyester case), pollution level 2, IP 66 with extra code 861
Setpoint
value adjustment
Switching
head fastening
WeightApprox. 1200 g single thermostat / approx. 2000 g double thermostat
Cable inletEx cable gland M20 × 1.5, sealing area 6 to 13 mm
Restart lock for the safety
temperature limiter STB
If the temperature on the temperature probe
exceeds the set limit value, the electrical circuit is opened and the microswitch is mechanically locked.
The microswitch can be manually unlocked
once the dangerous temperature of the setpoint value drops by approx. 20 % of the scale
range.
With screwdriver (once the case lid has been removed)
Using four screws (once the case lid has been removed)
and Ex cable gland M25 × 1.5, sealing area 7 to 17 mm
Self-monitoring for the safety temperature
monitor STW and safety temperature limiter
STB
If the measuring system is destroyed (i.e. if the
expansion fluid escapes) the pressure in the
membrane of the STB and STW drops and
permanently opens the electrical circuit.
Unlocking is then no longer possible.
If the probe has cooled down to a temperature
below approx. 40 °C the electrical circuit also
opens – however it automatically closes again
when the temperature rises.
Process connection
JUMO exTHERM-AT
with capillary
Plain cylindrical probe (standard), rigid thermowell, spiral probe for room thermostat version
Accessories
JUMO exTHERM-ATMulti-section standard thermowells made out of CrNi for use in zones 1, 2, 21, 22 (see data sheet 606710)
Multi-section thermowells made out of CrNi for use in zone separation 0/1, 20/21 (see new data sheet 605057)
Operating data
Medium ambient
temperature influence
deviates from the calibration ambient temperature of +22 °C, a switching point offset occurs.
When the ambient temperature on the switching head and/or the capillary
Higher ambient temperature = lower switching point
Lower ambient temperature = higher switching point
Admissible storage
temperature / admissible ambient tempera-
-40 °C, optionally -55 °C to +70 °C (referring to T4)
ture when in use
Max.
probe temperature
+15 % of the limit value / max. adjustment value or 25 K
Rated position (NL)According to DIN 16257, NL 0 to NL 90
- -- -13881
0 to +1202031139058
0 to +200154877248
+130 to +190- -- -11570
5000
+50 to +3001357865- +20 to +500- -- -278- -
+140 to +500- -- -- -126
Switching point tolerance in the middle section of the scale
Control range
in °C
TW
in K
STW upward adjustment
in K
STW downward adjustment
in K
STB
in K
-20 to +40+2/-2- -- -- -
-20 to +50+3/-3+0/-5+5/-0+0/-5
0 to +100+5/-5+0/-10+10/-0+0/-10
0 to +120+5/-5+0/-10+10/-0+0/-10
+130 to +190+8/-8+0/-16+16/-0+0/-16
0 to +200+8/-8+0/-16+16/-0+0/-16
+50 to +300+12/-12+0/-24+24/-0+0/-24
+20 to +500+22/-22- -- -- -
+140 to +500+22/-22+0/-44+44/-0+0/-44
Temperature monitors (TW) and safety temperature monitors (STW) are adjusted ascendingly in the middle section of the scale as standard
procedure. Safety temperature limiters (STB) are adjusted in the upper section of the scale. Special adjustments are possible upon request.
605055Surface-mounted thermostat JUMO exTHERM-AT for potentially explosive areas
(2)Basic type extensions
0002Temperature monitor (TW)
0020Safety temperature monitor (STW)
0070Safety temperature limiter (STB)
0270Temperature monitor (TW) / safety temperature limiter (STB)
2070Safety temperature monitor (STW) / safety temperature limiter (STB)
(3)Design type
5Surface-mounted thermostat
6Room thermostat
(4)Case
4Polyester case black (standard)
6Stainless steel case
(5)Control ranges / limit value ranges 1 in °C
013-20 to +40(only room thermostat)
014-20 to +50
0260 to +120
0280 to +200
046+20 to +500(only TW)
064+50 to +300
539+140 to +500 (only STW and STB)
532+130 to +190
(6)Control ranges / limit value ranges 2 in °C
000(only single thermostat)
013-20 to +40(only room thermostat)
014-20 to +50
0260 to +120
0280 to +200
046+20 to +500(only TW)
064+50 to +300
539+140 to +500 (only STW and STB)
532+130 to +190
(7)Switching capacity
11AC / DC = 24 V, 100 mA (gold-plated snap-action switch)
21AC 230 V +10 %, 16 (2.5) A, cos ϕ =1(0.6)(standard)
41AC 400 V +10 %, 16 A
25AC 230 V +10 %, 25 (4) A, cos ϕ =1(0.6)
(8)Operating temperatures in °C
340-55 to +40T6(+70 °C T4)(+50 °C T4 at 25 A)
467-40 to +40T6 (standard) (+70 °C T4)(+50 °C T4 at 25 A)
60003365605055/20 (STW)-20 to +50
60003366605055/02 (TW)-20 to +40- -Spiral probe
60003367605055/20 (STW)0 to +1201000 mm6 x 58 mm
60003368605055/20 (STW)+50 to +3001000 mm4 x 78 mm
60003369605055/2070 (STW/STB)
0 to +200 (STW)
+50 to +300 (STB)4 x 78 mm (STB)
CrNi
60003391605055/20 (STW)0 to +2001000 mm6 x 48 mm
60003395605055/0070 (STB)0 to +2001000 mm6 x 48 mm
60003401605055/0002 (TW)0 to +2001000 mm6 x 154 mm
2014-07-15/00576368
Capillary lengthProbes
1000 mm6 x 81 mm
1000 mm
4 x 87 mm (STW)
Loading...
+ hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.