{"id":10985,"date":"2025-11-05T11:36:07","date_gmt":"2025-11-05T10:36:07","guid":{"rendered":"https:\/\/alre.de\/produkte\/room-thermostat-heating-cooling-surface-mounted-super-flat-24vac-noiseless-triac\/"},"modified":"2025-11-05T11:37:15","modified_gmt":"2025-11-05T10:37:15","slug":"room-thermostat-heating-cooling-surface-mounted-super-flat-24vac-noiseless-triac","status":"publish","type":"produkte","link":"https:\/\/alre.de\/en\/produkte\/room-thermostat-heating-cooling-surface-mounted-super-flat-24vac-noiseless-triac\/","title":{"rendered":"Room thermostat, heating\/cooling, surface-mounted, super-flat, 24VAC, noiseless (Triac)"},"content":{"rendered":"[vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none”][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” tablet_text_alignment=”default” phone_text_alignment=”default” column_border_width=”none” column_border_style=”solid” bg_image_animation=”none”][vc_column_text]\n
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You are here: Klimatechnik<\/a> \/ Klimaregler<\/a> \/ elektronisch mit Triacausgang (ger\u00e4uschlos)<\/a><\/div>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row]\n[vc_row type=”in_container” top_padding=”80″ full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none”][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/3″ tablet_width_inherit=”default” tablet_text_alignment=”default” phone_text_alignment=”default” column_border_width=”none” column_border_style=”solid” bg_image_animation=”none”]\n

KTRTB-251.108<\/h1>\n

Room thermostat, heating\/cooling, surface-mounted, super-flat, 24VAC, noiseless (Triac)<\/h2>\n
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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).<\/div>\n
[nectar_btn size=”medium” el_class=”alre_product_button” open_new_tab=”true” button_style=”see-through-2″ color_override=”#72b5bc” hover_color_override=”#ee7202″ hover_text_color_override=”#ffffff” icon_family=”none” text=”Manual” margin_right=”18px” url=”https:\/\/media.alre.de\/eng_GBR\/636953275500324786.PDF”]<\/div>\n[\/vc_column]\n[vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”2\/3″ tablet_width_inherit=”default” tablet_text_alignment=”default” phone_text_alignment=”default” column_border_width=”none” column_border_style=”solid” bg_image_animation=”none”]\n
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    Art.-Nr.: MA700400<\/h5>\n[\/vc_column][\/vc_row]\n[vc_row type=”full_width_background” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” bottom_padding=”0″ text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” tablet_text_alignment=”default” phone_text_alignment=”default” column_border_width=”none” column_border_style=”solid” bg_image_animation=”none”][tabbed_section style=”minimal” alignment=”left” spacing=”default” tab_color=”Accent-Color” cta_button_style=”accent-color” icon_size=”24″][tab icon_family=”none” title=”Technical Data” id=”1615889093454-3″ tab_id=”1615889093455-1″][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left”][vc_column_inner column_padding=”padding-2-percent” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”right” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” column_border_width=”none” column_border_style=”solid” bg_image_animation=”none”][vc_column_text]\n

    Technical Data<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Actual temperature display<\/td>\nNo<\/td>\n<\/tr>\n
    Additional heating switch<\/td>\nNo<\/td>\n<\/tr>\n
    Ambient temperature<\/td>\n0\u202f\u2026\u202f40\u00a0\u00b0C<\/td>\n<\/tr>\n
    Assembly<\/td>\ncomplete device<\/td>\n<\/tr>\n
    Bearing temperature<\/td>\n\u201320\u202f\u2026\u202f\u00a0\u00b0C<\/td>\n<\/tr>\n
    Colour<\/td>\npure white<\/td>\n<\/tr>\n
    Control behaviour<\/td>\nswitching PWM<\/td>\n<\/tr>\n
    Control range<\/td>\n5\u202f\u2026\u202f30\u00a0\u00b0C<\/td>\n<\/tr>\n
    Cooling control function<\/td>\nYes<\/td>\n<\/tr>\n
    Degree of contamination<\/td>\n2<\/td>\n<\/tr>\n
    Design<\/td>\nBerlin 1000<\/td>\n<\/tr>\n
    Dimensions (W x H x D)<\/td>\n78\u202fmm x 78,5\u202fmm x 13,9\u202fmm<\/td>\n<\/tr>\n
    Display<\/td>\nNo<\/td>\n<\/tr>\n
    ECO function (reduction)<\/td>\nYes<\/td>\n<\/tr>\n
    ECO input (reduction)<\/td>\n24\u00a0VAC, 50 Hz<\/td>\n<\/tr>\n
    Electric connection<\/td>\nscrew terminals<\/td>\n<\/tr>\n
    Electronic control<\/td>\nYes<\/td>\n<\/tr>\n
    External setting<\/td>\nYes<\/td>\n<\/tr>\n
    Heating\/cooling switch<\/td>\nNo<\/td>\n<\/tr>\n
    Heating control function<\/td>\nYes<\/td>\n<\/tr>\n
    Housing material<\/td>\nplastic ABS<\/td>\n<\/tr>\n
    Max. air humidity (non-condensing)<\/td>\n95 % r.H.<\/td>\n<\/tr>\n
    Max. power consumption<\/td>\n<\u00a00,8\u00a0W<\/td>\n<\/tr>\n
    Max. switching current<\/td>\n625\u00a0mA<\/td>\n<\/tr>\n
    Max. switching voltage<\/td>\n24\u202fVAC, 50 Hz<\/td>\n<\/tr>\n
    Mechanical range reduction<\/td>\nYes<\/td>\n<\/tr>\n
    Medium<\/td>\nAir<\/td>\n<\/tr>\n
    Min. switching voltage<\/td>\n24\u202fVAC, 50 Hz<\/td>\n<\/tr>\n
    Mounting\/attachment<\/td>\nsurface mounting<\/td>\n<\/tr>\n
    Number of control ranges<\/td>\n1<\/td>\n<\/tr>\n
    Number of outputs<\/td>\n1<\/td>\n<\/tr>\n
    Number of outputs, cooling<\/td>\n1<\/td>\n<\/tr>\n
    Number of outputs, heating<\/td>\n1<\/td>\n<\/tr>\n
    On\/Off switch<\/td>\nNo<\/td>\n<\/tr>\n
    Operating voltage<\/td>\n24\u202fVAC,\u202f50 Hz<\/td>\n<\/tr>\n
    Operation<\/td>\nrotary knob<\/td>\n<\/tr>\n
    Output signal<\/td>\nswitching (PWM)<\/td>\n<\/tr>\n
    Potential free switching contact<\/td>\nNo<\/td>\n<\/tr>\n
    Proportional range<\/td>\napprox. 1 K<\/td>\n<\/tr>\n
    Protection class<\/td>\nIII<\/td>\n<\/tr>\n
    RAL colour number (similar)<\/td>\n9010<\/td>\n<\/tr>\n
    Safety and EMC<\/td>\nin accordance with DIN EN 60730<\/td>\n<\/tr>\n
    Scale<\/td>\nDegree Celsius<\/td>\n<\/tr>\n
    Sensor element<\/td>\nNTC internal<\/td>\n<\/tr>\n
    Sensor external<\/td>\nNo<\/td>\n<\/tr>\n
    Surface finish<\/td>\ngloss<\/td>\n<\/tr>\n
    Switch\/lamp night-time reduction<\/td>\nNo<\/td>\n<\/tr>\n
    Switching contact<\/td>\nNC contact<\/td>\n<\/tr>\n
    Switching difference, can be adjusted<\/td>\nNo<\/td>\n<\/tr>\n
    Switching differential<\/td>\nHeating\/cooling: 0\u00a0K<\/td>\n<\/tr>\n
    Switching element<\/td>\nTriac<\/td>\n<\/tr>\n
    Switching power<\/td>\n15\u00a0W<\/td>\n<\/tr>\n
    Temperature controller version<\/td>\nclimate controller<\/td>\n<\/tr>\n
    Type of wiring<\/td>\nother<\/td>\n<\/tr>\n
    With receiver<\/td>\nNo<\/td>\n<\/tr>\n<\/table>\n
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