Demand Switches
demand switch for automatic monitoring in narrow version, usually for one circuit/room touch sensor for easy operation unstabilised DC test voltage for more accurate detection of the loads - 200 volts DC short-circuit-proof and overvoltage-proofaccording to IEC incl. temperature monitoring very robust device with 2 years warranty incl. mini indicator lamp KO-L-NA for function monitoring directly in the switched circuit/room teach-in function for existing small loads Since the invention of the „field disconnector" by Biologa in 1976, Biologa Danell „mains disconnectors" have stood for a long tradition, know-how and high quality. Therefore, we are pleased to present you the new Biologa Danell „Demand switch" generation. The NA 16-1P (standard) demand switch finds its place in almost every distribution board due to its slim design of 17mm. The unit switches LED lamps, bedside lamps, dimmers, refrigerators with bimetal switches, water and hospital beds with digital control and their own power supply (battery or other self-supply) as well as all other ohmic loads such as high-voltage halogen lamps (G9), incandescent lamps, etc. The operating and display elements (touch sensor, multi-colour display - „RGB LED"), make the new Biologa Danell mains decoupler generation very easy to operate and are particularly user-friendly. The convenient function test by means of the supplied mini indicator lamp directly in the switched room ensures all-round safe decoupling. Preferably for one circuit/room. Simultaneous decoupling of several circuits is also possible under consideration of the max. rated power.
for improving the switching capacity and EMC properties of NA series mains decouplers prevents high voltage peaks and dirty power Improvement of the power quality in the disconnected circuit, long terminal lugs for convenient installation self-healing and durable The NA-FF47 line filter is a self-healing safety capacitor with conveniently long terminal lugs. The filter is connected in parallel to the power supply of a mains decoupler of the NA series (see drawing and diagram). Voltage peaks and harmonics (dirty power) are further attenuated (Hz-kHz range). The NA-FF47 further improves the EMC properties and ensures even better switching behavior of the NA series demand switches.
basic load element for convenient activation of critical loads (NA series < 2.0 W) simple mounting directly on the consumer or in the switch very small version, incl. convenient connection lugs The base load element GLW Plus is a small element for generating the necessary base load when critical loads are used. The installation is carried out parallel to the consumer. NEFA series: e.g. compact fluorescent lamps, electronic ballasts (e. g. low-voltage halogen lighting). NA-series: e.g. LED lamp - consumer < 2.0 Watt. If the lighting is connected in parallel, only one basic load element is required. The basic load element must be able to be switched off in order to prevent the mains decoupler from „cycling". The basic load element GLW Plus functions like an auxiliary consumer.
indicator light for monitoring the demand switch function simple installation by plugging into conventional earthed sockets in the monitored circuit flat design The indicator light KO-L-NA is an indicator light for monitoring the function in a monitored circuit by the mains decoupler series NA. It can be installed by simply plugging it into any socket. The KO-L-NA indicator light shows the respective switching status of the mains decoupler by lighting up orange/red when the mains voltage 230 VAC (alternating current) is switched on during the operation of consumers. The indicator light goes out when the 200 VDC (test DC voltage) is applied to the circuit, the mains decoupler is disconnected and all consumers are switched off.
Demand Switches
Application:
Power disconnect switches (demand switches) are installed directly in the electrical distribution board and continuously monitor the electrical load of a circuit. When no power-consuming devices are active, the system automatically disconnects the mains voltage and switches to a low-interference DC monitoring signal. As soon as power is required again, such as when a light is switched on, the device instantly restores the full mains voltage. Power Disconnect Switches are particularly well suited to bedrooms, children's rooms, relaxation areas and other spaces where reducing exposure to electrical fields is a priority.
Benefits:
Power Disconnect Switches offer an effective and convenient solution for reducing low-frequency electric fields, all while ensuring everyday comfort remains uncompromised. They operate fully automatically, require no maintenance and can be seamlessly integrated into existing electrical installations. Combined with shielded installation cables, shielded outlets and other shielding components, they form part of a comprehensive electromagnetic field (EMF) reduction strategy. The result is a calmer living environment, improved sleeping conditions and enhanced indoor comfort, making them an ideal solution for building biology projects, healthy homes and low-EMF living spaces.