JTF-25
Frost protection thermostat, capillary length 3m, external setting, 2-stage
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 JTF-25 frost protection monitor has 2 switching outputs, allowing intervention in the system before the danger point is reached. 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. The hysteresis between the stages is approx. 5 K.
Art.-Nr.: E6090324
Technical data
| Ambient temperature | −10 … 55 °C |
| Bearing temperature | –10 … 55 °C |
| Capillary length | 3 m |
| Colour | grey |
| Contact interlocking | No |
| Control range | -10 … 12 °C |
| Cooling control function | Yes |
| Degree of contamination | 2 |
| Device version | surface-mounted unit |
| Dimensions (W x H x D) | 105 mm x 112 mm x 55 mm |
| Electric connection | screw terminals |
| Electronic control | No |
| External setting | Yes |
| Function type (systems engineering) | TR |
| Heating control function | Yes |
| Housing material | plastic |
| Internal setting | No |
| Max. air humidity (non-condensing) | 95 % r.H. |
| Max. Sensor temperature | 200 °C |
| Max. switching current | 15 (8) A |
| Max. switching voltage | 230 VAC, 50 Hz |
| Medium | Air |
| Min. switching current | 150 mA |
| Min. switching voltage | 24 VAC, 50 Hz |
| Montage/Befestigung | wall mounting |
| Number of control ranges | 1 |
| Number of outputs | 4 |
| Output signal | switching |
| Potential free switching contact | No |
| Protection class | I |
| Rated impulse voltage | 4000 V |
| Safety and EMC | in accordance with DIN EN 60730 |
| Scale | Degree Celsius |
| Sensor element | capillary tube |
| Sensor material | Cu |
| Surface finish | matt |
| Switching contact | 2 two-way contacts |
| Switching difference, can be adjusted | No |
| Switching differential | Heating/cooling: 1 K |
| Switching element | microswitch |
| Switching power | 3450 W |
| With explosion protection | No |
| Photo | Type | Articlenumber | Features | Kind |
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Kontaktanfrage
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