KTRTB-251.108
Room thermostat, heating/cooling, surface-mounted, super-flat, 24VAC, noiseless (Triac)
This controller was specially developed for heating/cooling control in 2-pipe systems for hotels, residential and commercial premises and can control up to 5 valve actuators (normally closed). The KTRTB detects the room temperature with an internal sensor and activates the heating or cooling according to the deviation from the setpoint. The use of a triac as a switching element instead of a relay/bimetal means that there is no switching noise during operation. An internal switch can be used to configure the existing contact input as an ECO contact or standby contact. ECO function: If this function is selected, the temperature is reduced by 3 K in heating mode and increased by 3 K in cooling mode. Standby function: If this function is selected, the controller is switched off (frost protection remains active). Surface/wall mounting (4-hole mounting on flush-mounted box).
Art.-Nr.: MA700400
Technical data
| Actual temperature display | No |
| Additional heating switch | No |
| Ambient temperature | 0 … 40 °C |
| Assembly | complete device |
| Bearing temperature | –20 … °C |
| Colour | pure white |
| Control behaviour | switching PWM |
| Control range | 5 … 30 °C |
| Cooling control function | Yes |
| Degree of contamination | 2 |
| Design | Berlin 1000 |
| Dimensions (W x H x D) | 78 mm x 78,5 mm x 13,9 mm |
| Display | No |
| ECO function (reduction) | Yes |
| ECO input (reduction) | 24 VAC, 50 Hz |
| Electric connection | screw terminals |
| Electronic control | Yes |
| External setting | Yes |
| Heating control function | Yes |
| Housing material | plastic ABS |
| Max. air humidity (non-condensing) | 95 % r.H. |
| Max. power consumption | < 0,8 W |
| Max. switching current | 625 mA |
| Max. switching voltage | 24 VAC, 50 Hz |
| Mechanical range reduction | Yes |
| Medium | Air |
| Min. switching voltage | 24 VAC, 50 Hz |
| Montage/Befestigung | surface mounting |
| Number of control ranges | 1 |
| Number of outputs | 1 |
| Number of outputs, cooling | 1 |
| Number of outputs, heating | 1 |
| Operating voltage | 24 VAC, 50 Hz |
| Operation | rotary knob |
| Output signal | switching (PWM) |
| Potential free switching contact | No |
| Proportional range | approx. 1 K |
| Protection class | III |
| RAL colour number (similar) | 9010 |
| Safety and EMC | in accordance with DIN EN 60730 |
| Scale | Degree Celsius |
| Schalter Ein/Aus | No |
| Schalter Heizen/Kühlen | No |
| Sensor element | NTC internal |
| Sensor external | No |
| Surface finish | gloss |
| Switch/lamp night-time reduction | No |
| Switching contact | NC contact |
| Switching difference, can be adjusted | No |
| Switching differential | Heating/cooling: 0 K |
| Switching element | Triac |
| Switching power | 15 W |
| Temperature controller version | climate controller |
| Type of wiring | other |
| With receiver | No |
| Photo | Type | Articlenumber | Features | Kind |
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Kontaktanfrage
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