{"title":"Doorbell transformers","description":"\u003cp\u003eA doorbell transformer reliably supplies your doorbell or intercom with the right voltage. It converts the mains voltage into a low operating voltage, ensuring safe, trouble-free operation – whether you're running a classic chime or a modern intercom. At Malmvik you'll find robust models built for long-term use.\u003c\/p\u003e\u003cp\u003eMany of our transformers can be flexibly adjusted, such as an 8-24V doorbell transformer with switchable stages for 8V, 12V and 24V. For installation in the distribution box, a DIN-rail doorbell transformer is ideal, while a flush-mounted doorbell transformer disappears discreetly behind the wall. When choosing a model, pay attention to the required voltage type, for example a 24V AC doorbell transformer or a stabilised LED transformer to prevent annoying flicker.\u003c\/p\u003e\u003ch2\u003eBenefits at a glance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eThe right voltage: whether a 12V, 24V or 8V doorbell transformer\u003c\/li\u003e\n\u003cli\u003eSafe installation on a DIN rail or in the distribution box\u003c\/li\u003e\n\u003cli\u003eProtection functions against overvoltage and short circuits\u003c\/li\u003e\n\u003cli\u003eStable power supply for doorbells and intercoms\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis way you'll find the right doorbell transformer for your project and make sure your doorbell works reliably.\u003c\/p\u003e","products":[{"product_id":"ultra-flach-led-trafo","title":"Metzler LED transformer 12 V ultra-flat, stabilised direct current, doorbell transformer IP20 against LED flicker","description":"\u003ch2\u003eMalmvik Ultra-Flat 12 VDC LED Transformer\u003c\/h2\u003e\n\n\u003cp\u003eWith the ultra-flat LED transformer, you reliably supply your LED lights with stabilized 12V DC power. The flat doorbell transformer regulates the LED lighting for safe, even operation – and generates a clean, stabilized output voltage that effectively prevents LED flicker caused by voltage spikes. As a high-quality accessory for your outdoor lighting or doorbell system, it ensures permanently stable operation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTechnical specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eProtection rating: IP20 (for indoor installations)\u003c\/li\u003e\n\t\u003cli\u003eProtective functions: short-circuit \/ overload \/ over-temperature\u003c\/li\u003e\n\t\u003cli\u003eCooling via air convection\u003c\/li\u003e\n\t\u003cli\u003eConnection: screw terminal\u003c\/li\u003e\n\t\u003cli\u003eVersion: constant voltage\u003c\/li\u003e\n\t\u003cli\u003eSuitable for LED lights\u003c\/li\u003e\n\t\u003cli\u003eCE \/ RoHS certification mark\u003c\/li\u003e\n\t\u003cli\u003eDimensions: approx. 127.5 x 50 x 12 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eOutput:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eDC voltage: 12 V\u003c\/li\u003e\n\t\u003cli\u003eRated Current \/ Nennstrom: 1.25 Amp\u003c\/li\u003e\n\t\u003cli\u003eRated Power \/ Nennleistung: 15 W\u003c\/li\u003e\n\t\u003cli\u003eVoltage tolerance: 5%\u003c\/li\u003e\n\t\u003cli\u003eLine regulation: 2%\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eInput:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eAC voltage: 100-240 VAC\u003c\/li\u003e\n\t\u003cli\u003eFrequency range: 47-63 Hz\u003c\/li\u003e\n\t\u003cli\u003eEfficiency: \u0026gt;83%\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eEnvironment:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eOperating temperature: -10 ~ +50 C\u003c\/li\u003e\n\t\u003cli\u003eOperating humidity: 20 ~ 99% RH non-condensing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWarning:\u003c\/strong\u003e\u003cbr\u003e\nNot for work on or near live electrical parts! For use only by electrically instructed persons (instructed persons) \u0026amp; qualified electricians (skilled persons)\u003c\/p\u003e","brand":"Metzler","offers":[{"title":"Default Title","offer_id":56373416755540,"sku":"Ultra-Flach-LED-Trafo","price":14.44,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1051\/8514\/9268\/files\/img_12335.jpg?v=1783447684"},{"product_id":"trafo-goobay","title":"Metzler doorbell transformer 12V DC LED transformer with overvoltage and short-circuit protection, protection class II","description":"\u003ch2\u003eDoorbell Transformer \/ LED Transformer 12V DC – Goobay\u003c\/h2\u003e\n\n\u003cp\u003e\u003cbr\u003e\n\u003cstrong\u003eProduct data overview\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eOutput \/ power\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eOvervoltage and short-circuit protection\u003c\/li\u003e\n\t\u003cli\u003eSafety transformer\u003c\/li\u003e\n\t\u003cli\u003eRoHS compliant\u003c\/li\u003e\n\t\u003cli\u003eProtection class II\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eThe LED driver delivers a constant output voltage of 12V DC. Suitable for LED lamps with integrated electronics. The maximum load of the \"transformer\" is.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eOvervoltage and short-circuit protection\u003c\/li\u003e\n\t\u003cli\u003eFurniture-rated approval\u003c\/li\u003e\n\t\u003cli\u003eConnection via 12 V DC terminal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eConnect your LEDs with correct polarity to the terminal blocks in the secondary circuit (SEC).\u003c\/li\u003e\n\t\u003cli\u003eAlternatively, connect lamps with a DC plug to the DC socket, if available.\u003c\/li\u003e\n\t\u003cli\u003eTo calculate the total power (P in watts) of your lamp combination, multiply the current draw of the lamp (I in amps) by its voltage (U in volts). The formula is P=U*I.\u003c\/li\u003e\n\t\u003cli\u003eIn parallel circuits, the voltage (U) stays constant.\u003c\/li\u003e\n\t\u003cli\u003eIn series circuits, the current (I) stays constant.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eTechnical data\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eCertification mark: CE\u003c\/li\u003e\n\t\u003cli\u003eProtection class: II\u003c\/li\u003e\n\t\u003cli\u003eInput voltage (min.): 200 V\/AC\u003c\/li\u003e\n\t\u003cli\u003eOutput current (max.): 1.25 A\u003c\/li\u003e\n\t\u003cli\u003eOutput voltage (max.): 12 V\/DC\u003c\/li\u003e\n\t\u003cli\u003ePower (max.): 15 W\u003c\/li\u003e\n\t\u003cli\u003eNumber of outputs: 1 x\u003c\/li\u003e\n\t\u003cli\u003eType: Switch-mode\u003c\/li\u003e\n\t\u003cli\u003eInput voltage (max.): 240 V\/AC\u003c\/li\u003e\n\t\u003cli\u003eDesign: Fixed voltage\u003c\/li\u003e\n\t\u003cli\u003eDesign: Constant voltage + constant current\u003c\/li\u003e\n\t\u003cli\u003eLength (depth): 12.3 cm\u003c\/li\u003e\n\t\u003cli\u003eHeight: 2 cm\u003c\/li\u003e\n\t\u003cli\u003eWidth: 4.5 cm\u003c\/li\u003e\n\t\u003cli\u003ePower range: 15 W (max)\u003c\/li\u003e\n\t\u003cli\u003eBrand: Goobay\u003c\/li\u003e\n\t\u003cli\u003eProtection rating: IP20\u003c\/li\u003e\n\t\u003cli\u003eCategory: LED driver + LED transformer\u003c\/li\u003e\n\t\u003cli\u003eConnection: Screw terminal\u003c\/li\u003e\n\t\u003cli\u003eWeight: 58 g\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n","brand":"Metzler","offers":[{"title":"Default Title","offer_id":56373448868180,"sku":"Trafo_Goobay","price":11.04,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1051\/8514\/9268\/files\/img_3791.jpg?v=1783447969"},{"product_id":"trafo-web","title":"Metzler doorbell transformer 8V 12V 24V AC for DIN rail, adjustable, 8 VA, IP20, RAL 7035 grey, 35mm 2 modules","description":"\u003ch2\u003eMetzler doorbell transformer 8V–24V for DIN rail\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eTechnical specifications\u003c\/strong\u003e\u003cbr\u003e\nRated input voltage: AC 230 V 50 Hz\u003cbr\u003e\nRated output voltage: AC 8V, 12V or 24 V\u003cbr\u003e\nRated output power: 8 VA\u003cbr\u003e\nRated output current: 1A\u003cbr\u003e\nProtection class: protective insulation\u003cbr\u003e\nProtection rating: IP 20\u003cbr\u003e\nContact protection: per DIN VDE 0106 Part 100 (BGV A2)\u003cbr\u003e\nShort-circuit protection: Yes\u003cbr\u003e\nRated temperature: ta40\/E (+ 40 °C at installation site)\u003cbr\u003e\nAmbient temperature: ta25\/E (+ 25 °C at installation site)\u003cbr\u003e\nConnection cross-section: 10 mm2\u003cbr\u003e\nPower loss: max. 4 W\u003cbr\u003e\nDimensions HxWxD: 85x65x35mm\u003cbr\u003e\nInstallation width: 35mm = 2 modules\/division units\u003cbr\u003e\nMounting: on 35mm DIN rail\u003cbr\u003e\nWeight: 345g\u003cbr\u003e\nColour: RAL 7035, grey\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\n\u003cstrong\u003eShort-circuit protection\u003c\/strong\u003e\u003cbr\u003e\nThe doorbell transformer features electronic cut-off in the event of a short circuit, an overload in the secondary circuit, no-load operation, or overtemperature. Once the fault is resolved, the device automatically returns to safe operating mode.\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\n\u003cstrong\u003eImportant installation notes\u003c\/strong\u003e\u003cbr\u003e\nThe device complies with Directive 2004\/108\/EC on electromagnetic compatibility and the Low Voltage Directive 2006\/95\/EC.\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eBefore installation and maintenance work, disconnect the mains supply and secure it against accidental reconnection.\u003c\/li\u003e\n\t\u003cli\u003eConnection: Mount the doorbell transformer on the DIN rail inside the distribution board. Connect the power supply L and N to the two lower 230-V terminals. Connect the two doorbell wires to the desired (8 \/ 12 or 24 V) terminals of the doorbell transformer.\u003c\/li\u003e\n\t\u003cli\u003eThe doorbell transformer is designed for short-term loads.\u003c\/li\u003e\n\t\u003cli\u003eThe device is suitable for indoor use only. Protect the device from excessive heat.\u003c\/li\u003e\n\t\u003cli\u003eThe load specified on the device must never be exceeded or fallen short of.\u003c\/li\u003e\n\t\u003cli\u003eDangerous voltages are present inside the device; the housing is there for safety and must not be opened. There are no user-serviceable parts inside the housing.\u003c\/li\u003e\n\t\u003cli\u003eIf the device is used for purposes other than those specified, or connected incorrectly, no liability\/warranty will be assumed for any resulting damage.\u003c\/li\u003e\n\t\u003cli\u003eSteps before switching back on: Remove tools and equipment. Leave the danger area. Remove the short-circuiting and earthing first at the work location, then at the remaining locations. Lift the earthing cable first from the plant components, then from the ground. Plant components and lines without an earthing cable (if previously present) must no longer be touched. Reattach any removed protective covers and safety signs. Only lift protective measures at the switching points once clearance has been confirmed from the work locations.\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Metzler","offers":[{"title":"Default Title","offer_id":56373480423764,"sku":"Trafo-web","price":16.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1051\/8514\/9268\/files\/img_12197.jpg?v=1783448186"}],"url":"https:\/\/malmvik.de\/en\/collections\/klingeltrafos-1282.oembed","provider":"Malmvik","version":"1.0","type":"link"}