Frost protection thermostat JTF-1 … -25 Capillary system – 1 or 2 stages – TÜV-tested – switching
Technical data
Application
Housing colour: Sensor material:
grey
Securing hot water registers against freez- ing. The frost protection thermostats JTF-21 to JTF-25 have two switch outputs that allow for intervention in the system before the critical point is reached. All the devices are intrinsically safe and offer a sealable setpoint configuration. The capillaries, with the exception of JTF-3/-4, are active over the entire length. The device gets actuated when about 30 cm of the capillary (or approx. 60 cm capillary in the case of 12-m variants) reach the defined value. JTF-1 to -25: For temperature measurement of non-ag- gressive gases. The mounting brackets JZ-05/6 M (metal) or JZ-05/6 K (plastic) should be used for bracing the capillaries against the heat register. JTF-3 / -4 (additional application): The SW-200-12 protecting coil is to be used for temperature measurement of non-ag- gressive gases in the duct; for temperature measurement in non-aggressive fluids, the TH-140 immersion sleeve is to be used, and in aggressive fluids, the NTH-140 immersion sleeve.
Cu
Ambient temperature: Permissible atmospheric humidity:
–10 … +55 °C
Max. 95% rel. humidity, non-con- densing
Max. sensor temperature 200 °C Operating voltage: none Max. switching current: 15 (8) A Min. switching current: 150 mA Max. switching voltage:
JTF
230 VAC, 50 Hz 24 VAC, 50 Hz
Min. switching voltage:
Switching element: Switching contact:
microswitch
toggler, potential-free
Control range:
–10 … +12 °C
Electrical connection: Mounting/attachment:
screw-type terminals
wall mounting, controller housing must be fitted in such a way that it is not subjected to any temperature that is less than the scale value that has been set
JTF-..W
Protection class: Safety and EMC:
I
according to DIN EN 60730
Sensor:
gas-filled capillary, active over its entire length (except for JTF-3, JTF-3 W und JTF-4)
General features:
intrinsic safety, scale: degrees Celsius
Note: Mounting flanges, immersion sleeves and protecting coils are not part of the delivery scope and must be ordered separately as accessories.
JTF
Type testing by TÜV in accordance with DIN EN 14597
Type
Item no.
Capillary length
Features
PG
1-stage
JTF-1 *
E6090301
6 m external setting, TR, IP 40, hysteresis approx. 1 K
II
JTF-1 / 12 *
E6090328
12 m external setting, TR, IP 40, hysteresis approx. 1 K
II
JTF-1 W *
E6090014
6 m internal setting, TW, IP 65, hysteresis approx. 1 K
II
JTF-2 **
E6090308
6 m external setting, external reset, TB, IP 40, hysteresis: manual reset after temperature rise of approx. 4 K 6 m internal setting, internal reset, TB, IP 65, hysteresis: manual reset after temperature rise of approx. 4 K 1.8 m external setting, TR, IP 40, hysteresis approx. 1 K, sensor dimensions: 9.5 x 76 mm, also for use in applications exposed to water 1.8 m internal setting, TW, IP 65, hysteresis approx. 1 K, sensor dimensions: 9.5 x 76 mm, also for use in applications exposed to water 1.8 m external setting, external reset, TB, IP 40, hysteresis: manual reset after temperature rise of approx. 4 K, sensor dimensions: 9.5 x 76 mm, also for use in applications exposed to water
II
JTF-2 W**
E6090287
II
JTF-3 *
E6090309
II
JTF-3 W *
E6090065
II
JTF-4 **
E6090310
II
JTF-5 *
E6090311
3 m external setting, TR, IP 40, hysteresis approx. 1 K
II
Catalogue 2022 | Page 175
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