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JTF-1

Frost protection thermostat, capillary length 6 m, external setting

For protecting hot water heating registers against freezing. The device is intrinsically safe and has a sealable setpoint adjustment.

For temperature measurement of non-aggressive gases. The JZ-05/6M (metal) or JZ-05/6 K (plastic) mounting clamps must be used to clamp the capillary in front of the heating coil. The capillary is active along its entire length. The device responds when approx. 30 cm of capillary reaches the set scale value. Mounting clamps, immersion sleeves and protective coils are not included in the scope of delivery and must be ordered separately.


Number of outputs2, 2
Number of control ranges1
Output signalswitching
External settingYes
Rated impulse voltage4000 V
Electric connectionscrew terminals
Electronic controlNo
With explosion protectionNo
Colourgrey
Sensor elementcapillary tube
Function type (systems engineering)TR, TR
Device versionsurface-mounted unit
Internal settingNo
Contact interlockingNo
Bearing temperature–10 … 55 °C
Capillary length6 m
Max. air humidity (non-condensing)95 % r.H.
Sensor materialCu
Housing materialplastic
Max. Sensor temperature200 °C
Max. switching voltage230 VAC, 50 Hz
Max. switching current15 (8) A
MediumAir
Min. switching voltage24 VAC, 50 Hz
Min. switching current150 mA
Mounting/attachmentwall mounting
Surface finishmatt, matt
Control range-10 … 12 °C, -10 … 12 °C
Heating control function
Cooling control function
Switching differentialHeating/cooling: 1 K
Switching difference, can be adjustedNo
Switching elementmicroswitch
Switching contacttwo-way contact
Potential free switching contactYes
Switching power3450 W
Protection classIP40
Protection classI
Safety and EMCin accordance with DIN EN 60730
ScaleDegree Celsius
Ambient temperature−10 … 55 °C
Degree of contamination2
Dimensions (W x H x D)105 mm x 112 mm x 55 mm

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PhotoTypeArt. no.Features
JZ-04JZ-04E6160133Capillary tube feed-through for JTF frost protection thermostats and JMT/WR/JET capillary regulatorsView product
JZ-05/1MJZ-05/1MC1809462Single mounting bracketView product
JZ-05/6MJZ-05/6MC1809474Mounting clips (metal) 6 pcs.View product
JZ-05/6KJZ-05/6KC1809536Mounting clips (plastic) 6 pcs.View product
JZ-07JZ-07E6160145Mounting bracketView product