Heating technology
Air conditioning
Radio systems
System technology
Building automation
Sensors
JTF-3 W
Frost protection thermostat, capillary length 1.8 m, internal 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 in the duct, use the SW-200-12 thermowell, for temperature measurement in non-aggressive fluids use the TH-140 thermowell, in aggressive fluids use the NTH-140 thermowell. Mounting clamps, thermowells and protective coils are not included in the scope of delivery and must be ordered separately.
| Number of outputs | 2, 2 |
|---|---|
| Number of control ranges | 1 |
| Output signal | switching |
| External setting | No |
| Rated impulse voltage | 4000 V |
| Diameter sensor element | 9.5 mm |
| Electric connection | screw terminals |
| Electronic control | No |
| With explosion protection | No |
| Colour | grey |
| Sensor element | capillary tube |
| Function type (systems engineering) | TW, TW |
| Device version | surface-mounted unit |
| Internal setting | Yes |
| Contact interlocking | No |
| Bearing temperature | –10 … 55 °C |
| Length of sensor | 76 mm |
| Capillary length | 1.8 m |
| Max. air humidity (non-condensing) | 95 % r.H. |
| Sensor material | Cu |
| Housing material | plastic |
| Max. Sensor temperature | 200 °C |
| Max. switching voltage | 230 VAC, 50 Hz |
| Max. switching current | 15 (8) A |
| Medium | Air |
| Min. switching voltage | 24 VAC, 50 Hz |
| Min. switching current | 150 mA |
| Mounting/attachment | wall mounting |
| Surface finish | matt, matt |
| Control range | -10 … 12 °C, -10 … 12 °C |
| Heating control function | |
| Cooling control function | |
| Switching differential | Heating/cooling: 1 K |
| Switching difference, can be adjusted | No |
| Switching element | microswitch |
| Switching contact | two-way contact |
| Potential free switching contact | Yes |
| Switching power | 3450 W |
| Protection class | IP65, IP65 |
| Protection class | I |
| Safety and EMC | in accordance with DIN EN 60730 |
| Scale | Degree Celsius |
| Ambient temperature | −10 … 55 °C |
| Degree of contamination | 2 |
| Dimensions (W x H x D) | 120 mm x 200 mm x 75 mm |
Loading specification text...
| Photo | Type | Art. no. | Features | |
|---|---|---|---|---|
 | SW-200-12 | C1809220 | Protective coil, 200 mm, nickel-plated steel, inner x outer diameter 11 x 17 mm, cable… | View product |
 | TH-140 | C1809409 | Thermowell, 140 mm, nickel-plated brass, diameter inside x outside 10 x 12 mm | View product |
| NTH-140 | C1809435 | Thermowell, 140 mm, V4A (1.4571), diameter inside x outside 10 x 12 mm | View product |
 | JZ-04 | E6160133 | Capillary tube feed-through for JTF frost protection thermostats and JMT/WR/JET capillary regulators | View product |
 | JZ-05/1M | C1809462 | Single mounting bracket | View product |
 | JZ-05/6M | C1809474 | Mounting clips (metal) 6 pcs. | View product |
 | JZ-05/6K | C1809536 | Mounting clips (plastic) 6 pcs. | View product |
 | JZ-07 | E6160145 | Mounting bracket | View product |