Self-tapping screws 4.2x13 mm with hexagon head and pressed-on washer, case-hardened galvanised steel, self-tapping DIN 7504 KThese screws are manufactured in galvanised steel. Self-tapping screws with 6KT head and pressed-on washer are characterised by their head shape (hexagon head with flange) and have a sheet metal thread. When you purchase a packaging unit of DIN 7504 K self-drilling screws, you receive 100 screws. Further important information about the article DIN 7504 Form K - Self-drilling screw with 6KT head with pressed-on washer : Weight per 100 pieces: 0.193 kg d: 4.2 mm; s: 7 mm; l: 13 mm; k: 4.1 mm; lp: 4.5 mm Self-drilling screws made of steel, electrogalvanised, high-quality industrial quality. Self-drilling screws for mounting sheet metal, ventilation ducts, flat ducts, fans, metal rails and car parts. The screws can be easily fastened with a cordless screwdriver without pre-drilling

Thyristor speed controllers enable manual speed control of fans with single-phase motors 230V/50Hz. When installed with the supplied surface-mounted enclosure, the control unit has a protection rating of IP 54. When flush-mounted without the surface-mounted enclosure, the protection rating is IP 44. Multiple motors can be connected in parallel, provided the total current does not exceed the rated current of the controller. When selecting the appropriate control unit, the starting currents of the fans must be taken into account. Fans operated with this control unit must be equipped with built-in overheating protection and be suitable for operation with a thyristor controller.

Speed controller STSX 2.5 Rated voltage 230 V, steplessFeatures:Quality Made in Germany, protection class IP 30 for safety in the homeSpeed controller - for easy installationFor one direction of rotation for stepless regulation of fans. Green LED operating indicator.Attractive design - compatible with any interior styleSuitable for continuous operation.Description:Speed controller for stepless regulation of fans. VDE tested. For one direction of rotation. Can be installed on a 35 mm standard profile rail. Green LED operating indicator. Due to the phase-cutting technology, a physically caused humming noise may occur at low speed range. In rooms where quiet fan operation is required, 5-step transformers TRE... should be used for speed control. Item: STSX 2.5, Voltage type: alternating current, Rated voltage: 230 V, Maximum load: 2.5 A, Minimum load: 0.1 A, Protection class: IP 30, Installation type: distribution board / control cabinet, Colour: light grey, similar to RAL 7035, Weight: 0.0985 kg, Weight with packaging: 0.123 kg, Width: 35 mm, Height: 94 mm, Depth: 86 mm, Width with packaging: 40 mm, Height with packaging: 95 mm, Depth with packaging: 96 mm, Suitable for box fans: no, Suitable for roof fans: yes, Suitable for duct fans: yes, Suitable for heat recovery systems: no, Suitable for wall-mounted fans: yes, Suitable for wall-mounted built-in fans: yes, Suitable for residential fans: yes, Suitable for centrifugal fans: no, Suitable for circulation fans: no

Speed controller STX 4 Rated voltage 230 V, steplessFeatures:Quality Made in Germany, protection class IP 44 for safety in the homeSpeed controller - for easy installationStepless control. Minimum speed adjustable. Splash-proof. With LED operating indicator. Switch on the fan by turning the control knob. Including spare fuse.Attractive design - compatible with any interior styleSuitable for continuous operation.Description:Speed controller for stepless regulation of fans. Minimum speed adjustable. Suitable for surface-mounted and flush-mounted installation, exception: STX 4 only for surface-mounted installation. Operating principle: phase angle control. Recommended distance to radio and television sets: 3 m. Switching on the fans at maximum speed by turning the control knob. Further turning reduces the speed. Splash-proof. Built-in thermal cut-out. Orange LED operating indicator. CE mark. Including spare fuse. Additional switching contact (230 V) e.g. for controlling a flap. Due to the phase angle control technology, a physically caused humming noise may occur at low speed range. In rooms where quiet fan operation is required, use 5-step transformers TRE... for speed control. Mounting on walls possible, avoid mounting on ceilings due to heat development. STX 1.5, STX 2.5: Width x height x depth for surface-mounted installation: 82 mm x 89 mm x 69 mm, width x height x depth for flush-mounted installation: 50 mm x 50 mm x 33 mm, STX 4: Width x height x depth for surface-mounted installation: 82 mm x 89 mm x 69 mmArticle: STX 4, voltage type: alternating current, rated voltage: 230 V, maximum load: 4 A, minimum load: 0.4 A, protection class: IP 44, installation type: surface-mounted, colour: white, similar to RAL 9010, weight: 0.2312 kg, weight with packaging: 0.263 kg, width: 82 mm, height: 89 mm, depth: 69 mm, width with packaging: 85 mm, height with packaging: 95 mm, depth with packaging: 70 mm, suitable for box fans: no, suitable for roof fans: no, suitable for duct fans: no, suitable for heat recovery systems: no, suitable for wall-mounted fans: no, suitable for wall recessed fans: yes, suitable for residential fans: no, suitable for centrifugal fans: no, suitable for circulation fans: no

Intelmann® Protective Grille for Duct Fans Ø 100–400 mm, Chrome-PlatedThe Intelmann® Protective Grille for Duct Fans provides reliable protection for people and components in ventilation and air conditioning systems. It prevents accidental contact with running fans and simultaneously protects against large foreign objects in the airflow.The sturdy design made of chrome-plated metal ensures high mechanical durability as well as a long-lasting and corrosion-resistant surface. The open grille structure keeps airflow virtually unaffected while ensuring safe operation.The protective grille is ideal for use with duct fans, axial fans, and ventilation systems in private, commercial, and industrial settings.Advantages at a glance:✅ Safe touch protection – Protection against rotating fan blades✅ Chrome-plated finish – Corrosion-resistant and durable✅ High stability – Robust metal construction✅ Low air resistance – Open grille structure✅ Universally applicable – Suitable for many duct and axial fans✅ Easy installation – Quick attachment to fan or housingTechnical details:✔ Product name: Intelmann® Protective Grille for Duct Fan✔ Material: Metal, chrome-plated✔ Design: Round protective grille✔ Nominal diameters:– Ø 100 mm– Ø 125 mm– Ø 150 mm– Ø 160 mm– Ø 200 mm– Ø 250 mm– Ø 315 mm– Ø 355 mm– Ø 400 mmApplication & areas of use:– Duct fans– Axial fans– Ventilation systems– Air conditioning and exhaust systems– Industrial and commercial applicationsInstallation:The protective grille is attached directly to the fan housing or ventilation opening and provides a secure and stable cover for the fan opening.With the Intelmann® Protective Grille for Duct Fans, you receive a robust and durable safety solution for professional ventilation and air conditioning systems.

Product Information „Fischbach FDR-B 5-Stage Speed Controller“The Fischbach FDR-B series enables simple and reliable speed control of 230 V and 400 V fans in five fixed power stages. This allows the air output to be adjusted as needed while simultaneously reducing energy consumption.The controllers are particularly suitable for use in ventilation, air conditioning, exhaust, and industrial systems where a robust and easy-to-use speed control is required.Additionally, the FDR-B series features a connection for thermal contacts to monitor the fan motor as well as a potential-free contact for external controls, for example, for connecting gas warning systems, fire protection systems, or other safety devices.Advantages at a Glance✅ Speed control in 5 power stages✅ Suitable for 230 V and 400 V fans✅ Simple and reliable operation✅ Connection for motor thermal contacts✅ Contact for external controls available✅ Robust industrial design✅ Energy-efficient adjustment of air outputTechnical Details✔ Series: Fischbach FDR-B✔ Function: 5-stage speed control✔ Suitable for: 230 V and 400 V fans✔ Control stages: 5 fixed speed levels✔ Thermal contact connection: Available✔ External control input: Available (e.g. gas valve or safety control)Features✔ Easy installation✔ Reliable speed control✔ Protection of the fan through thermal contact monitoring✔ Flexible integration into existing system controls✔ Low-maintenance designAreas of Application– Ventilation systems– Air conditioning systems– Exhaust systems– Industrial and commercial ventilation– Machinery and plant engineering– Safety and gas warning systemsThe Fischbach FDR-B 5-Stage Speed Controller offers a simple and proven solution for adjusting the performance of fans while enabling the integration of important protection and control functions in modern ventilation systems.

Product Information „Fischbach Control Unit HF10 IP66“The Fischbach Control Unit HF10 IP66 is a robust and versatile solution for manual speed and power control of devices with a 0–10 V control input. The integrated 10 kΩ potentiometer allows for the stepless setting of a control signal for EC fans, frequency converters, or other controllable components in ventilation and air conditioning technology.The integrated 0-I rotary selector switch enables easy switching on and off of the connected system. Additionally, there is another switching contact available, which can be used for control or enable functions.Thanks to the impact-resistant surface-mounted enclosure with protection class IP66, the HF10 is particularly suitable for use in industrial, commercial, and kitchen areas.Advantages at a Glance✅ Integrated 10 kΩ potentiometer✅ Suitable for devices with 0–10 V control input✅ Integrated 0-I rotary selector switch✅ Additional switching contact available✅ Protection class IP66 for demanding environments✅ Impact-resistant industrial enclosure✅ Simple and precise controlTechnical Details✔ Product name: Fischbach HF10 IP66✔ Function: Setpoint specification for 0–10 V control signals✔ Potentiometer: 10 kΩ✔ Control characteristic: Linear✔ Resistance tolerance: ±10 %✔ Switch: 0-I rotary selector switch✔ Additional switching contact: Available✔ Enclosure: Monoblock surface-mounted enclosure✔ Scale: 1 revolution✔ Protection class: IP66Electrical Data✔ Rated insulation voltage (Ui): 250 VAC✔ Rated impulse withstand voltage (Uimp): 4 kVFeatures✔ Stepless setpoint specification✔ Robust industrial design✔ Impact-resistant enclosure✔ Suitable for indoor and protected outdoor areas✔ Any installation position possible✔ Low-maintenance constructionApplications– EC fans– Frequency converters– Ventilation and air conditioning systems– Industrial plants– Large kitchens and catering– Process air technology– Building automationThe Fischbach Control Unit HF10 IP66 offers a reliable and precise option for manual control of 0–10 V control loops. Its robust design and high protection class make it the ideal solution for industrial and commercial applications.

Product Information „Fischbach Speed Controller FRE-B for Single-Phase Fan Motors“The Fischbach Speed Controller FRE-B is used for stepless speed control of single-phase fan motors in ventilation, air conditioning, and industrial systems. By adjusting the output voltage, the air performance of the connected fan can be precisely adapted to the respective requirements.The control is carried out via an integrated potentiometer in the housing or alternatively via an external 0–10 V DC control signal. The speed control operates using phase angle control and enables reliable and finely tuned power regulation.The FRE-B is available in various power levels with maximum currents of 3 A, 5 A or 10 A and is suitable for numerous applications in ventilation and air handling technology.Advantages at a Glance✅ Stepless speed control for single-phase fan motors✅ Control via integrated potentiometer or external 0–10 V signal✅ Proven phase angle control✅ Available for 3 A, 5 A or 10 A load capacity✅ Protection class IP44✅ Easy installation and operation✅ Suitable for ventilation and air handling systemsTechnical Details✔ Manufacturer: Fischbach✔ Type: FRE-B✔ Product type: Speed controller for single-phase fan motors✔ Control method: Phase angle control✔ Control: Potentiometer or 0–10 V DC signalElectrical Data✔ Supply voltage: 1 × 230 V AC✔ Mains frequency: 50 / 60 Hz✔ Maximum current: 3 A, 5 A or 10 A (model dependent)Protection Data✔ Protection class: IP44✔ Insulation class: IIStandards and Compliance✔ EN 55032✔ EN 55035✔ EN IEC 61000-3-2✔ EN 61000-3-3✔ EN IEC 62368-1Features✔ Stepless power adjustment✔ Flexible control via potentiometer or building management system✔ Reliable control of AC fan motors✔ Robust design✔ Low-maintenance constructionApplication Areas✔ Fans✔ Ventilation systems✔ Air conditioning systems✔ HVAC systems✔ Industrial and commercial ventilation✔ Technical building equipmentFields of Use– Supply and exhaust air systems– Hall ventilation– Process air technology– Machinery and plant engineering– Air conditioning and ventilation technology– Building automationThe Fischbach Speed Controller FRE-B enables precise and reliable speed control of single-phase fan motors. Thanks to the flexible control via potentiometer or 0–10 V signal, the controller can be integrated both into simple ventilation systems and modern building automation solutions.

Product Information „Fischbach Frequency Inverter Type FFU1 for Fans, Stepless Speed Control“The Fischbach Frequency Inverter Type FFU1 is used for stepless speed control of fans and enables precise adjustment of the air output to the respective operating requirements. Demand-oriented control can reduce energy consumption, noise generation, and wear of the system.Operation can be carried out either via the integrated keypad or via an external setpoint transmitter. This allows the frequency inverters to be flexibly integrated into both simple ventilation systems and complex automation and building management technology.Thanks to extensive inputs and outputs, numerous control and monitoring functions are available. Digital inputs and outputs, analogue inputs and outputs, as well as a relay output enable the integration of additional functions and external components.The frequency inverters are available depending on the version with protection classes IP21 or IP66 and are therefore suitable both for installation in control cabinets and for demanding environmental conditions.Advantages at a Glance✅ Fischbach Frequency Inverter Type FFU1✅ Stepless speed control of fans✅ Energy-efficient operation through demand-oriented power adjustment✅ Operation via keypad or external setpoint transmitter✅ Extensive inputs and outputs for individual control tasks✅ Relay output for additional switching functions✅ Available in protection class IP21 or IP66✅ Flexible integration into building and system technologyTechnical Details✔ Manufacturer: Fischbach✔ Type: FFU1✔ Product type: Frequency inverter✔ Application: Speed control of fans✔ Control: SteplessElectrical Data✔ Operating voltage: 230 V or 400 V AC✔ Operation via integrated keypad✔ External setpoint specification possibleInputs and Outputs✔ Digital inputs✔ Digital outputs✔ Analogue inputs✔ Analogue outputs✔ Relay outputProtection Classes✔ IP21✔ IP66 (model-dependent)Features✔ Precise speed control✔ Energy savings through demand-oriented operation✔ Flexible control and monitoring options✔ Easy integration into automation systems✔ High operational reliability✔ Low-maintenance designAreas of Application✔ Fans✔ Ventilation systems✔ Air conditioning systems✔ HVAC systems✔ Industrial and commercial ventilation✔ Technical building equipmentFields of Use– Supply and exhaust air systems– Hall ventilation– Process air technology– Machine and plant engineering– Building automation– Industrial and commercial ventilationThe Fischbach Frequency Inverter Type FFU1 offers a powerful and flexible solution for speed control of fans. Due to the diverse control options, extensive interfaces, and availability in protection classes IP21 and IP66, it is suitable for a wide range of professional ventilation and industrial applications.

Product Information „Fischbach Frequency Inverter Type FFU3 for Fans, Stepless Speed Control“The Fischbach Frequency Inverter Type FFU3 is used for stepless speed control of fans and enables precise adjustment of the air output to the respective operating requirements. Demand-oriented control can reduce energy consumption, noise generation, and wear of the system.Operation is possible either via the integrated keypad or an external setpoint transmitter. This allows the frequency inverters to be flexibly integrated into both simple ventilation systems and complex automation and building management technology.Thanks to extensive inputs and outputs, numerous control and monitoring functions are available. Digital inputs and outputs, analogue inputs and outputs, as well as a relay output enable the integration of additional functions and external components.The frequency inverters are available depending on the version with protection classes IP21 or IP66, making them suitable both for control cabinet installation and demanding environmental conditions.Advantages at a Glance✅ Fischbach Frequency Inverter Type FFU3✅ Stepless speed control for fans✅ Operation via integrated keypad or external setpoint transmitter✅ Energy-efficient operation through demand-oriented power adjustment✅ Extensive control and monitoring options✅ Digital and analogue inputs and outputs✅ Relay output for additional switching functions✅ Available in protection class IP21 or IP66Technical Details✔ Manufacturer: Fischbach✔ Type: FFU3✔ Product type: Frequency inverter✔ Application: Speed control of fans✔ Control: SteplessElectrical Data✔ Operating voltage: 230 V AC or 400 V AC✔ Operation via integrated keypad✔ External setpoint input possibleInputs and Outputs✔ Digital inputs✔ Digital outputs✔ Analogue inputs✔ Analogue outputs✔ Relay outputProtection Classes✔ IP21✔ IP66 (model-dependent)Features✔ Precise speed control✔ Energy savings through demand-oriented operation✔ Flexible parameterisation✔ Easy integration into building automation systems✔ High operational reliability✔ Low-maintenance designApplication Areas✔ Fans✔ Ventilation systems✔ Air conditioning systems✔ HVAC systems✔ Industrial and commercial ventilation✔ Technical building equipmentFields of Use– Supply and exhaust air systems– Hall ventilation– Process air technology– Machine and plant engineering– Building automation– Industrial and commercial ventilationThe Fischbach Frequency Inverter Type FFU3 enables powerful and energy-efficient speed control of fans. Thanks to flexible operation, extensive interfaces, and availability in protection classes IP21 and IP66, they are suitable for numerous applications in ventilation, air conditioning, and plant engineering.