D+H KA 54/800 PLP chain drive 24 V 500 N 800 mm

The D+H CPS-B1-2.5-0101 is a compact smoke and heat extraction (RWA) control unit from the Basic series. With an output of 24 V DC / 2.5 A, one detector line and one actuator group, it is ideally suited for small to medium-sized smoke and heat extraction systems in public, commercial and industrial buildings. The control unit provides a stabilised 24 V output voltage and features an integrated emergency power supply for up to 72 hours (with separately available rechargeable batteries). Up to 8 smoke and heat extraction control points and 8 approved fire detectors can be connected per line. In addition to standard smoke and heat extraction functions, the control unit offers numerous safety and convenience features. These include circuit monitoring for short circuits and open circuits, remote reset of smoke detectors, smoke and heat extraction night-time operation, and switchable safety functions. Furthermore, the control unit can be used for daily comfort ventilation. The ventilation time can be set directly on the control unit. A wind or rain sensor can be connected directly without the need for additional extensions. The D+H CPS-B1-2.5-0101 meets the requirements of modern smoke extraction systems and is certified in accordance with ISO 21927-9, DIN EN 12101-10, VdS 2581, VdS 2593, VdS 2344, EN 62368-1 and the building regulations requirements of DIN 18232-9. Features Basic smoke and heat extraction control unit for 24 V DC systems Output power: 2.5 A 1 detector line and 1 actuator group Includes plastic housing with spare key Integrated emergency power supply for 72 hours (batteries available separately) Comfort ventilation function with adjustable ventilation time Connection for wind and rain sensor Circuit monitoring for short circuits and open circuits Remote reset of smoke detectors and night-time activation of smoke and heat extraction systems Tested and certified in accordance with DIN EN 12101-10, ISO 21927-9 and VdS Technical data Supply voltage: 195–253 V AC, 50 Hz Power consumption: 140 VA Standby power consumption: < 2 W Output: 24 V DC / 2.5 A Monitoring operating mode: Continuous operation Alarm/ventilation operating mode: Short-term operation (30 % duty cycle) Channels: 1 Drive groups: 1 Protection class: IP30 Ambient temperature: -5 °C to +40 °C Housing: Plastic Colour: White (similar to RAL 9016) Dimensions (W × H × D): 310 × 310 × 104 mm Scope of delivery D+H CPS-B1-2.5-0101 main circuit board Plastic housing Spare key Excludes rechargeable batteries (rechargeable batteries must be ordered separately) Note: Two suitable rechargeable batteries are required for operation. These are not included in the scope of delivery and must be ordered separately.

The D+H CPS-B1-5-0101 is a high-performance smoke and heat extraction (RWA) control unit from the Basic series. With an output of 24 V DC / 5 A, one detector line and one actuator group, it is ideally suited for small to medium-sized smoke and heat extraction systems with increased power requirements. It ensures reliable control of the connected smoke and heat extraction systems and can also be used for daily comfort ventilation.The control unit provides a stabilised 24 V output voltage and features an integrated emergency power supply for up to 72 hours (with separately available rechargeable batteries). Up to 8 RWA control points and 8 approved fire detectors can be connected per line.In addition to standard smoke and heat extraction functions, the control unit offers numerous safety and convenience features. These include circuit monitoring for short circuits and open circuits, remote reset of smoke detectors, an integrated smoke and heat extraction night-time operation mode, and switchable safety functions. Furthermore, visual and audible alarm devices can be connected. An optional wind or rain sensor can be connected directly to the control unit.The D+H CPS-B1-5-0101 meets the requirements of modern smoke and heat extraction systems and is certified to ISO 21927-9, DIN EN 12101-10, VdS 2581, VdS 2593, VdS 2344, EN 62368-1 and the building regulations requirements of DIN 18232-9.FeaturesBasic smoke and heat extraction control unit for 24 V DC systemsOutput power: 5 A1 detector line and 1 actuator groupIncludes plastic housing with spare keyIntegrated emergency power supply for at least 72 hours (batteries available separately)Convenience ventilation function with adjustable ventilation timeDirect connection of a wind or rain sensor possibleCircuit monitoring for short circuits and open circuitsRemote reset of smoke detectors and RWA night-time activationConnection options for visual and audible alarm devicesTested and certified in accordance with DIN EN 12101-10, ISO 21927-9 and VdSTechnical dataSupply voltage: 195–253 V AC, 50 HzPower consumption: 145 VAStandby power consumption: < 2 WOutput: 24 V DC / 5 AMonitoring operating mode: Continuous operationAlarm/ventilation operating mode: Short-term operation (30 % duty cycle)Channels: 1Drive groups: 1Protection class: IP30Ambient temperature: -5 °C to +40 °CHousing: PlasticColour: White (similar to RAL 9016)Dimensions (W × H × D): 310 × 310 × 104 mmContents of deliveryD+H CPS-B1-5-0101 central circuit boardPlastic housingSpare keyExcludes rechargeable batteries (rechargeable batteries must be ordered separately)Note: Two type 8 rechargeable batteries are required for operation. These are not included in the scope of delivery and must be ordered separately.

The D+H CPS-P1-010-0101-B is a compact smoke and heat extraction control unit for controlling 24 V DC smoke and heat extraction systems. With an output of 24 V DC / 10 A, a detector line and a motor group, it is suitable for smoke extraction and daily ventilation. The integrated emergency power supply ensures reliable operation even in the event of a mains power failure.The control unit supplies an actuator group with up to 10 A. Up to 8 smoke and heat extraction control points and 14 approved fire detectors can be connected per line. Parameterisation is carried out via DIP switches. Features such as line monitoring, dual smoke detector interdependence, RWA night-time operation, comfort ventilation, as well as connections for wind and rain sensors and alarm devices are included.The D+H CPS-P1-010-0101-B meets the requirements of modern smoke and heat extraction systems and is certified in accordance with ISO 21927-9, DIN EN 12101-10, VdS 2581, VdS 2593, VdS 2594, VdS 2344 and the building regulations set out in DIN 18232-9.FeaturesCompact smoke and heat extraction control unit for 24 V DC systemsOutput power: 10 A1 detector line and 1 actuator group72-hour emergency power supply (batteries available separately)Configuration via DIP switchesCircuit monitoring and dual smoke detector interdependenceComfort ventilation functionsConnection for wind and rain sensorsTested in accordance with DIN EN 12101-10, ISO 21927-9 and VdSTechnical dataSupply voltage: 230 V AC, 50 HzPower consumption: 290.7 VAStandby power consumption: < 5 WOutput: 24 V DC / 10 AResidual ripple: < 5 %Protection rating: IP54 (VdS IP30)Ambient temperature: -5 °C to +40 °CHousing: PlasticColour: Light grey (similar to RAL 7035)Dimensions (W × H × D): 300 × 350 × 165 mmBattery type: 2 × Type 18Contents of deliveryD+H CPS-P1-010-0101-B central circuit boardLockable plastic housing with keyWired switching power supplyBatteries not included (Batteries must be ordered separately)

The D+H CPS-P1-020-0202-B is a high-performance smoke and heat extraction control unit for controlling 24 V DC smoke and heat extraction systems. With an output of 24 V DC / 20 A, two detector lines and two actuator groups, it is suitable for larger smoke extraction systems with multiple fire compartments. The integrated emergency power supply and comprehensive smoke and heat extraction and ventilation functions ensure reliable operation.The control unit supplies each drive group with up to 20 A. Up to 8 smoke and heat extraction control points and 14 approved fire detectors can be connected per line. Parameterisation is carried out via DIP switches. Features such as cable monitoring, dual smoke detector interlock, smoke and heat extraction post-operation, comfort ventilation and connections for wind and rain sensors are included.The D+H CPS-P1-020-0202-B meets the requirements of modern smoke and heat extraction systems and is certified in accordance with ISO 21927-9, DIN EN 12101-10, VdS 2581, VdS 2593, VdS 2594, VdS 2344 and the building regulations set out in DIN 18232-9.FeaturesCompact smoke and heat extraction control unit for 24 V DC systemsOutput power: 20 A2 detector lines and 2 actuator groups72-hour emergency power supply (batteries available separately)Configuration via DIP switchesCircuit monitoring and dual smoke detector interdependenceComfort ventilation functionsConnection for wind and rain sensorsTested in accordance with DIN EN 12101-10, ISO 21927-9 and VdSTechnical dataSupply voltage: 230 V AC, 50 HzPower consumption: 550 VAStandby power consumption: < 5 WOutput: 24 V DC / 20 AMonitoring operating mode: Continuous operationAlarm/ventilation operating mode: Short-term operation (30% duty cycle)Lines: 2Drive groups: 2Protection rating: IP54Ambient temperature: -5 °C to +40 °CHousing: PlasticColour: Light grey (similar to RAL 7035)Dimensions (W × H × D): 400 × 500 × 245 mmScope of supplyD+H CPS-P1-020-0202-B central circuit boardLockable plastic housing with keyWired switching power suppliesTerminal blocks for mains connectionWithout rechargeable batteries (rechargeable batteries must be ordered separately)

The D+H CPS-P1-040-0202-B is a high-performance smoke and heat extraction control unit for controlling 24 V DC smoke and heat extraction systems. With an output of 24 V DC / 40 A, two detector lines and two actuator groups, it is suitable for larger smoke extraction systems with high power requirements. The integrated emergency power supply and comprehensive smoke and heat extraction and ventilation functions ensure reliable operation.The control unit provides a total of 40 A of output power, with each drive group capable of handling up to 20 A. Up to 8 smoke and heat extraction control points and 14 approved fire detectors can be connected per line. Parameterisation is carried out via DIP switches. Features such as cable monitoring, dual smoke detector interlock, smoke and heat extraction night-time operation, comfort ventilation and connections for wind and rain sensors are included.The D+H CPS-P1-040-0202-B meets the requirements of modern smoke and heat extraction systems and is certified in accordance with ISO 21927-9, DIN EN 12101-10, VdS 2581, VdS 2593, VdS 2594, VdS 2344 and the building regulations set out in DIN 18232-9.FeaturesCompact smoke and heat extraction control unit for 24 V DC systemsTotal output power: 40 A2 detector lines and 2 actuator groups72-hour emergency power supply (batteries available separately)Configuration via DIP switchesCircuit monitoring and dual smoke detector interlockComfort ventilation functionsConnection for wind and rain sensorsTested in accordance with DIN EN 12101-10, ISO 21927-9 and VdSTechnical dataSupply voltage: 230 V AC, 50 HzPower consumption: 1010 VAStandby power consumption: < 6 WOutput: 24 V DC / 40 AMonitoring operating mode: Continuous operationAlarm/ventilation operating mode: Short-term operation (30% duty cycle)Lines: 2Drive groups: 2Protection rating: IP54Ambient temperature: -5 °C to +40 °CHousing: PlasticColour: Light grey (similar to RAL 7035)Dimensions (W × H × D): 400 × 500 × 245 mmScope of supplyD+H CPS-P1-040-0202-B central circuit boardLockable plastic housing with keyWired switching power suppliesTerminal blocks for mains connectionWithout rechargeable batteries (rechargeable batteries must be ordered separately)

The D+H FD-T 271 is a thermal differential detector designed for reliable temperature monitoring in smoke and heat extraction systems (RWA). It operates on the thermal differential principle and detects both rapid temperature rises and when defined temperature thresholds are reached. This makes it particularly suitable for areas where optical smoke detectors cannot be used optimally due to dust, steam or other environmental conditions.The detector features automatic self-monitoring, which continuously checks its function and operating status. An integrated red LED reliably indicates the alarm status. Installation is quick and straightforward using the detector base supplied.The FD-T 271 meets the requirements of EN 54-5 A1R and has VdS approval. This makes it ideal for use in D+H smoke and heat extraction systems.FeaturesThermal differential detector based on the thermal differential principleAutomatic self-monitoring of function and operating statusAlarm indication via red LEDSimple installation thanks to removable detector baseMonitoring area up to 30 m²Monitoring height up to 7.5 mCertified to EN 54-5 A1RVdS-approved (G 213069)Technical dataRated voltage: 24 V DCDetection area: max. 30 m²Detection height: max. 7.5 mAlarm indication: Red LEDAir velocity: 0 to 25.4 m/sTemperature range: -20 °C to +50 °CHumidity: ? 95 %Protection class: IP40Terminal blocks: 0.6 mm Ø to 2 mm²Housing: ABSColour: White (similar to RAL 9010)Specification: EN 54-5 A1RVdS approval: G 213069Scope of supplyD+H FD-T 271 thermal differential detectorDetector base

The D+H KA-BS002-VFO is a specially developed bracket set for surface-mounted installation of D+H KA chain drives on outwards-opening roof windows. The bracket set is optimally matched to selected profile systems and enables secure and precise fixing of the drive. :contentReference[oaicite:1]{index=1}The bracket set is designed for the window profiles Gutmann S70 Roof, Raico WING 105D and Wicona WICTEC 50/60. It forms part of the tested D+H system solutions for natural ventilation and smoke and heat extraction systems (RWA). All necessary fixing materials are included in the scope of delivery. Installation instructions can be found in the D+H application drawings and product information. :contentReference[oaicite:2]{index=2}FeaturesBracket set for D+H KA chain drivesSurface-mounted installation on outwards-opening roof windowsOptimised for Gutmann S70 roof windowsOptimised for Raico WING 105DOptimised for Wicona WICTEC 50/60Tested system solution for smoke and heat extraction (RWA) and ventilation applicationsIncludes all necessary fixing materialsTechnical dataInstallation type: Surface-mounted installationApplication: Outward-opening roof windowsCompatible profile systems: Gutmann S70 Roof, Raico WING 105D, Wicona WICTEC 50/60Scope of supplyD+H KA-BS002-VFO bracket setComplete fixing set

The D+H KA-BS046-VFI is a universal bracket set for surface-mounted installation of D+H KA chain drives on inwards-opening windows. It is fitted to the window frame and ensures secure and precise mounting of the drive.The bracket set is suitable for a wide range of window profiles and forms part of the tested D+H system solutions for natural ventilation and smoke and heat extraction systems (RWA). All fasteners required for installation are included in the scope of delivery. Instructions for correct installation can be found in the D+H application drawings and product information. :contentReference[oaicite:0]{index=0}FeaturesBracket set for D+H KA chain drivesSurface-mounted installation on the window frameFor inwards-opening windowsUniversal applicationTested system solution for smoke and heat extraction and ventilation applicationsIncludes all necessary fixing materialsTechnical dataInstallation type: Surface-mounted frame installationWindow type: Inwards-openingApplication: Frame mountingScope of supplyD+H KA-BS046-VFI bracket setComplete fixing set

The D+H LS 84-U-V is a ventilation switch for the manual control of 230 V AC ventilation units. It is suitable for installation in standard 55 mm flush-mounted boxes and enables convenient operation of ventilation actuators via the functions OPEN, STOP and CLOSE.Operation is via a double-push-button switch with mechanically interlocked rocker switches. This ensures that only one direction of travel can be activated at any one time. The STOP function is triggered by pressing the rocker switch again, causing it to return to its initial position.With its simple white plastic housing, the ventilation switch blends discreetly into standard switch ranges and is suitable for use in public, commercial and industrial buildings.FeaturesVentilation switch for 230 V AC ventilation unitsFlush-mounted version for 55 mm junction boxesFunctions: ON, STOP and OFFDouble-push button with mechanical latchSTOP function by pressing the rocker switch againRobust plastic housingSimple and convenient operationTechnical dataInput voltage: 230 V ACProtection class: IP20Housing: PlasticColour: WhiteDimensions (W × H): 80 × 80 mmScope of supplyD+H LS 84-U-V ventilation switch

The D+H LT 84-U is a ventilation push-button switch for the manual control of 24 V DC ventilation units. It is suitable for installation in standard 55 mm flush-mounted boxes and enables convenient operation of ventilation drives via the functions OPEN, STOP and CLOSE.The dual-button switch features two non-latching normally open contacts and enables reliable and convenient control of the connected ventilation unit. Thanks to its compact construction and simple design, the ventilation push-button switch blends harmoniously into existing switch ranges.With its robust plastic housing, the ventilation push-button switch is suitable for use in public, commercial and industrial buildings and is the ideal complement to D+H ventilation control systems.FeaturesVentilation push-button switch for 24 V DC ventilation unitsFlush-mounted version for 55 mm junction boxesFunctions: ON, STOP and OFFDouble push-button switch with two non-latching normally open contactsRobust plastic housingSimple and convenient operationTechnical dataInput voltage: 24 V DCProtection class: IP20Housing: PlasticColour: WhiteDimensions (W × H): 80 × 80 mmScope of supplyD+H LT 84-U ventilation push-button switch

The D+H LT 84-U-SD is a ventilation push-button switch for the manual control of 24 V DC ventilation units. It is suitable for installation in standard 55 mm flush-mounted boxes and enables convenient operation of ventilation drives via the functions OPEN, STOP and CLOSED.The dual-button switch features two non-latching normally open contacts and is fitted with an integrated LED indicator for the OPEN position. This allows the current switching status to be identified quickly and unambiguously. The simple design blends harmoniously into existing switch ranges.With its robust plastic housing, the ventilation push-button switch is suitable for use in public, commercial and industrial buildings and is the ideal complement to D+H ventilation control systems.FeaturesVentilation push-button switch for 24 V DC ventilation groupsFlush-mounted version for 55 mm junction boxesFunctions: OPEN, STOP and CLOSEDouble-push button with two non-latching normally open contactsIntegrated LED indicator for the OPEN positionRobust plastic housingSimple and convenient operationTechnical dataInput voltage: 24 V DCProtection class: IP20Housing: PlasticColour: WhiteDimensions (W × H): 80 × 80 mmContents of deliveryD+H LT 84-U-SD ventilation push-button switch

The D+H RS-S is a rain sensor for the automatic monitoring of ventilation dampers in conjunction with 24 V DC actuators and D+H control units. The heated sensor surface reliably detects precipitation and facilitates the automatic closing of connected ventilation elements when it rains.The rain signal can be stored for up to 300 seconds. The rain hold time is adjustable within the range of 10 to 300 seconds and prevents the ventilation flaps from reopening immediately during brief breaks in the rain.With its compact plastic housing and IP44 protection rating, the RS-S is suitable for weather-dependent control of ventilation functions in conjunction with D+H actuators and control units.FeaturesRain sensor for 24 V DC actuators and D+H control unitsHeated sensor surface for reliable rain detectionFor rain monitoring of ventilation flapsAdjustable rain hold time from 10 to 300 secondsCompact plastic housingIP44 protection ratingSuitable for weather-dependent ventilation controlsTechnical dataPower supply: 24 V DC / 0.06 AProtection class: IP44Temperature range: -30 °C to +50 °CHousing: PlasticDimensions (W × H × D): 96 × 77 × 118 mmWeight: 0.17 kgContentsD+H RS-S rain sensor

The D+H RT 46 ALU is a robust smoke and heat extraction system control unit for the manual activation and reset of smoke and heat extraction systems (RWA). In the event of a fire, it enables the reliable activation of the smoke and heat extraction system and can be used as both a main and a secondary control unit.The sturdy die-cast aluminium housing is designed for surface-mounted installation and offers a high level of protection in day-to-day use. The control unit has been developed in accordance with pr EN 12101-9 and VdS 2592 and thus meets the requirements for modern smoke and heat extraction systems.The integrated buttons allow the functions RWA OPEN and RWA RESET to be operated conveniently. LED indicators provide information at all times regarding operational readiness, a triggered smoke and heat extraction alarm, and any faults that may be present.FeaturesSmoke and heat extraction control panel for the manual triggering of smoke and heat extraction systemsSuitable as a main or secondary control unitSurface-mounted installationRobust die-cast aluminium housingFunctions: RWA OPEN and RWA ResetStatus indicators for operational readiness, smoke and heat extraction alarm and faultDeveloped in accordance with pr EN 12101-9 and VdS 2592Lockable versionTechnical dataSupply voltage: 24 V DC (18–28 V DC)Protection class: IP40Ambient temperature: -5 °C to +40 °CHousing: Die-cast aluminium (surface-mounted)Colour: Orange (RAL 2011)Dimensions (W × H × D): 129 × 138 × 39 mmScope of supplyD+H RT 46 ALU smoke and heat extraction control unitLockable housing with control unitStrike plateKeyLabelling sheet in 32 languages

The D+H RZN 4503-T is a compact smoke and heat extraction push-button control unit with an integrated main control panel and ventilation push-buttons in a robust aluminium housing. With an output of 24 V DC / 3 A, one detector line and one actuator group, it is ideal for compact smoke and heat extraction systems where control unit and operating panel are combined in one device.The unit provides a stabilised output voltage and an integrated emergency power supply for at least 72 hours (battery sold separately). Up to 8 smoke and heat extraction control panels and 14 approved fire detectors can be connected. Temperature-controlled battery charging, circuit monitoring, remote smoke detector reset and night-time smoke extraction functions ensure reliable operation.An optional add-on module enables comfort ventilation with adjustable opening width and ventilation time. Wind or rain sensors, visual and audible alarm devices, and two freely programmable potential-free signal contacts can also be connected.FeaturesSmoke and heat extraction push-button control unit with integrated main control panel24 V DC / 3 A output1 detector line and 1 actuator groupLockable aluminium housing72-hour emergency power supply (battery sold separately)Supports up to 8 control panels and 14 fire detectorsOptional comfort ventilation moduleDirect connection for wind or rain sensorTwo programmable potential-free signal contactsRemote smoke detector reset and night-time smoke extractionCertified to DIN EN 12101-10, ISO 21927-9 and VdS standardsTechnical dataSupply voltage: 230 V AC, 50 HzPower consumption: 100 VAStandby power consumption: < 5 WOutput: 24 V DC / 3 AProtection rating: IP30Ambient temperature: -5 °C to +40 °CHousing: AluminiumColour: Orange (similar to RAL 2011)Dimensions (W × H × D): 156 × 235 × 82 mmScope of supplyD+H RZN 4503-T control unit in flush-mounted aluminium housingLockable door with spare key32-language labelling setWithout battery (must be ordered separately)

The D+H RZN 4503-T Set is a complete smoke and heat exhaust ventilation (RWA) set for the rapid installation of a smoke and heat exhaust ventilation system. It consists of the RWA push-button control unit RZN 4503-T, an RT 45 RWA push-button, the SD-O 371 smoke detector and a Type 8 battery for the integrated 72-hour emergency power supply. All components are perfectly matched to one another and enable quick and safe installation.The RWA push-button control unit features an integrated RWA main control panel and a ventilation push-button within a robust aluminium housing. With an output of 24 V DC / 3 A, a detector loop and a drive unit, the set is ideally suited for smaller smoke and heat extraction systems in public, commercial and industrial buildings.The control unit provides a stabilised output voltage and offers numerous safety and convenience features. These include circuit monitoring for short circuits and open circuits, remote reset of smoke detectors, RWA delayed activation, and connection options for visual and audible alarm devices. An optional wind or rain sensor can be connected directly. In addition, two freely programmable potential-free signal contacts and a slot for an optional add-on module are available.The D+H RZN 4503-T is certified in accordance with ISO 21927-9, DIN EN 12101-10, VdS 2581, VdS 2593, VdS 2344 and the building regulations requirements of DIN 18232-9.FeaturesComplete smoke and heat extraction (RWA) kit with coordinated componentsRWA push-button control unit RZN 4503-T with integrated main control panel and ventilation push-buttonOutput power: 24 V DC / 3 A1 detector line and 1 actuator groupRobust aluminium housing with lockable doorTemperature-controlled battery charging with charge and status indicatorSlot for optional add-on module for comfort ventilationDirect connection of a wind or rain sensorTwo freely programmable potential-free signal contactsIncludes RT 45 smoke and heat alarm push-buttonIncludes SD-O 371 smoke detectorIncludes Type 8 rechargeable battery for 72-hour emergency power supplyTested and certified in accordance with DIN EN 12101-10, ISO 21927-9 and VdSTechnical dataSupply voltage: 230 V AC, 50 HzPower consumption: 100 VAStandby power consumption: < 5 WOutput: 24 V DC / 3 AResidual ripple: < 0.5 mVssMonitoring operating mode: Continuous operationAlarm/ventilation operating mode: Short-term operation (30% duty cycle)Circuits: 1Drive groups: 1Protection rating: IP30Ambient temperature: -5 °C to +40 °CHousing: AluminiumColour: Orange (similar to RAL 2011)Dimensions (W × H × D): 156 × 235 × 82 mmContents of deliveryD+H RZN 4503-T smoke and heat alarm push-button control unitRT 45 smoke and heat alarm push-buttonSD-O 371 smoke detector1 × Type 8 rechargeable batteryLockable flush-mounted aluminium housing with spare keyLabelling set in 32 languagesNote: The smoke and heat extraction set contains all the essential components for installing a single-circuit smoke and heat extraction system. Actuators and other accessories are not included in the scope of delivery and must be ordered separately if required.

The D+H SD-O 371 is an optical smoke detector based on the tried-and-tested scattered light principle for reliable fire detection in smoke and heat extraction systems (RWA). It detects emerging smoke particles at an early stage and, in the event of a fire, triggers the connected RWA control unit. Thanks to its high reliability, the detector is suitable for use in public, commercial and industrial buildings.The smoke detector features automatic self-monitoring, which continuously checks its function and operating status. An integrated alarm LED clearly indicates when the detector has been triggered. Thanks to automatic background level compensation, contamination is counteracted, ensuring consistently reliable detection.Installation is quick and easy using the detector base supplied. The SD-O 371 meets the requirements of EN 54-7 and has VdS approval, making it ideally suited for use in D+H smoke and heat extraction systems.FeaturesOptical smoke detector based on the scattered light principleAutomatic self-monitoring of function and operating statusAlarm indication via red LEDAutomatic background level adjustmentEasy installation thanks to a removable detector baseMonitoring area up to 110 m²Monitoring height up to 12 mCertified to EN 54-7VdS-approved (G 213066)Technical specificationsRated voltage: 24 V DCDetection area: max. 110 m²Detection height: max. 12 mAlarm indicator: Red LEDAir velocity: 0 to 25.4 m/sTemperature range: -20 °C to +72 °CHumidity: ? 95 %Protection class: IP40Terminal blocks: 0.6 mm Ø to 2 mm²Housing: ABSColour: White (similar to RAL 9010)Specification: EN 54-7VdS approval: G 213066Scope of supplyD+H SD-O 371 smoke detectorDetector base

The D+H TH 4/70 is a thermal detector for the thermal monitoring of electrical cables in smoke and heat extraction systems (RWA). With a trigger temperature of approx. 70 °C, it detects unauthorised temperature rises in cables and thus contributes to the safe monitoring of RWA drive units.The thermal detector is used in conjunction with D+H smoke and heat extraction drive units and serves to protect the electrical installation. By fitting it into a site-supplied junction box, the detector can be integrated discreetly and in a space-saving manner.Thanks to its compact design, the TH 4/70 is suitable for both new installations and the retrofitting of existing smoke and heat extraction systems.FeaturesThermal detector for cable monitoring in smoke and heat extraction systemsTrigger temperature approx. 70 °CFor use with D+H smoke and heat extraction drive unitsProtection of electrical cables against excessive heatingInstallation in on-site junction boxCompact designTechnical dataOperating voltage: 24 V DCTrigger temperature: approx. 70 °CDrill hole diameter: 11 mmScope of supplyD+H TH 4/70 thermal detector

The D+H VRS 10 is a rain detector for the automatic monitoring of ventilation dampers in conjunction with 24 V DC D+H RWA and KNL control units. It reliably detects rainfall via a heated sensor surface and supports the automatic closing of connected ventilation elements when it rains.The rain signal is stored for approx. 2 minutes. This rain hold time prevents the ventilation dampers from reopening immediately during brief breaks in the rain and ensures stable operation of the ventilation system.Thanks to its robust polycarbonate housing with protection class IP65, the VRS 10 is suitable for outdoor use. The supplied V2A mounting bracket and fixing console enable secure and permanent installation.FeaturesRain detector for 24 V DC D+H RWA and KNL control unitsHeated sensor surface for reliable rain detectionFor rain monitoring of ventilation dampersRain signal is stored for approx. 2 minutesRobust polycarbonate housingIP65 protection rating for outdoor useV2A mounting bracketTechnical dataPower supply: 24 V DC / 0.05 AProtection rating: IP65Temperature range: -20 °C to +60 °CHousing: PolycarbonateColour: Light grey (similar to RAL 7035)Dimensions (W × H × D): 50 × 70 × 66 mmMounting bracket: V2AScope of supplyD+H VRS 10 rain sensorMounting bracket2 cable ties

The D+H WRS-S is a combined wind and rain sensor for weather-dependent control of ventilation dampers in conjunction with D+H control units and 24 V DC systems. It monitors both precipitation and wind speed and facilitates the automatic closure of connected ventilation elements in the event of adverse weather conditions.The wind activation threshold can be set via DIP switches within a range of 1 m/s to 30 m/s. The rain signal is stored for approx. 5 minutes, as is the wind signal. This prevents erratic opening and closing during sudden changes in weather.The heated sensor surface ensures reliable rain detection. With its compact plastic housing and IP44 protection rating, the WRS-S is ideally suited for automatic, weather-dependent ventilation control.FeaturesCombined wind and rain sensor for 24 V DC systemsFor weather-dependent control of ventilation dampersHeated sensor surface for reliable rain detectionWind switching threshold adjustable via DIP switchesWind switching threshold adjustment range: 1 to 30 m/sRain signal is stored for approx. 5 minutesWind signal is stored for approx. 5 minutesCompact plastic housingProtection class IP44Technical dataPower supply: 24 V DC / 0.09 AProtection class: IP44Temperature range: -30 °C to +50 °CHousing: PlasticDimensions (W × H × D): 96 × 77 × 118 mmWeight: 0.18 kgContents of deliveryD+H WRS-S wind and rain sensor