{"id":16733,"date":"2026-08-26T08:00:00","date_gmt":"2026-08-26T00:00:00","guid":{"rendered":"https:\/\/www.wehopower.com\/?post_type=news&#038;p=16733"},"modified":"2026-08-31T14:20:31","modified_gmt":"2026-08-31T06:20:31","slug":"power-supply-for-cctv-cameras-12v-vs-24v-selection-guide","status":"publish","type":"news","link":"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/","title":{"rendered":"CCTV Kameralar i\u00e7in G\u00fc\u00e7 Kayna\u011f\u0131: 12V vs 24V Se\u00e7im K\u0131lavuzu"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0130\u00e7indekiler<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\u0130\u00e7indekiler Tablosunu A\u00e7\/Kapat\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Ge\u00e7i\u015f yapmak<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Introduction\" >girii\u015f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#First_Rule_Match_the_Camera_Input_Specification\" >\u0130lk Kural: Kamera Giri\u015f Spesifikasyonunu E\u015fle\u015ftir<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#12V_and_24V_at_the_Same_Power\" >12V ve 24V ayn\u0131 g\u00fc\u00e7te<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Why_Voltage_Drop_Often_Decides_Between_12V_and_24V\" >Voltaj D\u00fc\u015f\u00fc\u015f\u00fc Neden Genellikle 12V ve 24V Aras\u0131nda Karar Verir<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Do_Not_Compensate_Blindly_by_Raising_the_Supply_Voltage\" >Arz voltaj\u0131n\u0131 art\u0131rarak k\u00f6r telafi etmeyin<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Build_a_Complete_CCTV_Power_Budget\" >Komple CCTV G\u00fc\u00e7 B\u00fct\u00e7esi Olu\u015fturun<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Centralized_Local_or_Distributed_Power\" >Merkezi, Yerel veya Da\u011f\u0131t\u0131lm\u0131\u015f G\u00fc\u00e7<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Centralized_Security_Power_Supply\" >G\u00fcvenlik G\u00fc\u00e7 Kayna\u011f\u0131 Power Supply<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Local_Power_Adapters\" >Yerel G\u00fc\u00e7 Adapt\u00f6rleri<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Distributed_Low-Voltage_Cabinets\" >Da\u011f\u0131t\u0131lm\u0131\u015f D\u00fc\u015f\u00fck Voltaj Kabinleri<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Power_over_Ethernet\" >Ethernet \u00fczerinden g\u00fc\u00e7<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Matching_the_Architecture_to_WEHO_Power_Supply_Families\" >Mimariyi WEHO Power Supply Ailelerine E\u015fle\u015ftirme<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Battery_Backup_and_Required_Runtime\" >Batarya Yedekleme ve Gerekli \u00c7al\u0131\u015fma S\u00fcresi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Protection_Grounding_and_Surge_Control\" >Koruma, Topraklama ve Dalgalanma Kontrol\u00fc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Cable_and_Connector_Practices\" >Kablo ve Ba\u011flay\u0131c\u0131 Uygulamalar\u0131<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Commissioning_Checklist\" >Kontrol Listesi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Common_Selection_Mistakes\" >Genel se\u00e7im hatalar\u0131<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Assuming_Every_Camera_Uses_12VDC\" >Her Kamera 12VDC Kullan\u0131yor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Sizing_From_Daytime_Current\" >Daytime Current 'dan G\u00fcn\u00fcm\u00fcze Do\u011fru<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Ignoring_the_Return_Conductor\" >S\u00fcr\u00fcc\u00fc geri d\u00f6n\u00fc\u015f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Using_One_Large_Fuse_for_Small_Camera_Wires\" >K\u00fc\u00e7\u00fck Kamera Kablolar\u0131 i\u00e7in B\u00fcy\u00fck Bir Fuse Kullanma<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Mixing_AC_and_DC_Ratings\" >AC ve DC Derecelendirmeleri<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#FAQs\" >SSS<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Is_24V_always_better_for_long_CCTV_cable_runs\" >24V her zaman uzun CCTV kablosu i\u00e7in daha iyi midir?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Can_I_power_a_12V_camera_from_a_24V_supply_with_a_resistor\" >12V kameray\u0131 bir diren\u00e7le 24V kayna\u011f\u0131ndan \u00e7al\u0131\u015ft\u0131rabilir miyim?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#How_much_spare_capacity_should_a_CCTV_power_supply_have\" >Bir CCTV g\u00fc\u00e7 kayna\u011f\u0131n\u0131n ne kadar yedek kapasitesi olmal\u0131d\u0131r?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Should_every_camera_have_a_separate_fuse\" >Her kameran\u0131n ayr\u0131 bir fi\u015fi olmal\u0131 m\u0131?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.wehopower.com\/tr\/news\/power-supply-for-cctv-cameras-12v-vs-24v-selection-guide\/#Conclusion\" >\u00c7\u00f6z\u00fcm<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>girii\u015f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure class=\"weho-blog-image\"><img decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/08\/01-hero-cctv-power-room.png?quality=85&strip=all\" alt=\"Power Supply for CCTV Cameras: 12V vs 24V Selection Guide  title=\" loading=\"lazy\" power supply for cctv cameras: 12v vs 24v selection guide title=\"\"><\/figure>\n<p>G\u00fcvenilir video g\u00fcvenilir g\u00fcce ba\u011fl\u0131d\u0131r. Bir CCTV kamera, besleme voltaj\u0131 izin verilen aral\u0131\u011f\u0131n alt\u0131na d\u00fc\u015ft\u00fc\u011f\u00fcnde yeniden ba\u015flat\u0131labilir, k\u0131z\u0131l\u00f6tesi ayd\u0131nlatmay\u0131 kaybedebilir, karars\u0131z video \u00fcretebilir veya kay\u0131t cihaz\u0131ndan d\u00fc\u015febilir. 12V ile 24V aras\u0131ndaki se\u00e7im, g\u00fc\u00e7 kayna\u011f\u0131 etiketinden daha fazlas\u0131n\u0131 etkiler: ak\u0131m, kablo gerilimi d\u00fc\u015f\u00fc\u015f\u00fc, da\u011f\u0131t\u0131m mimarisi, yedekleme tasar\u0131m\u0131, koruma ve geni\u015fletme kapasitesini de\u011fi\u015ftirir.<\/p>\n<p>Do\u011fru voltaj her zaman kamera ve aksesuarlar\u0131 taraf\u0131ndan kabul edilen voltajd\u0131r. Sadece 12V kamera 24V'a ba\u011flanmamal\u0131d\u0131r ve 24V 'lik bir cihaz 12V' dan do\u011fru \u00e7al\u0131\u015fmayabilir. Uyumluluk onayland\u0131ktan sonra, montajc\u0131lar merkezi ve yerel malzemeleri kar\u015f\u0131la\u015ft\u0131rabilir, en k\u00f6t\u00fc durum y\u00fck\u00fcn\u00fc hesaplayabilir, ve 24V da\u011f\u0131l\u0131m\u0131n\u0131n uzun s\u00fcr\u00fc\u015flerde avantaj sa\u011flay\u0131p sa\u011flamad\u0131\u011f\u0131n\u0131 belirlemek. Bu k\u0131lavuz bu s\u00fcreci a\u00e7\u0131klar ve WEHO 'nun nerede oldu\u011funu g\u00f6sterir. <a href=\"https:\/\/www.wehopower.com\/tr\/product-category\/security-power-supply\/\">Power Supply Aileleri<\/a> Profesyonel bir CCTV tasar\u0131m\u0131na uygun.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"First_Rule_Match_the_Camera_Input_Specification\"><\/span>\u0130lk Kural: Kamera Giri\u015f Spesifikasyonunu E\u015fle\u015ftir<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Kamera etiketini ve veri sayfas\u0131n\u0131 voltaj tipi, izin verilen aral\u0131k, polarite, konekt\u00f6r, maksimum ak\u0131m ve g\u00fc\u00e7 y\u00f6ntemi a\u00e7\u0131s\u0131ndan inceleyin. CCTV ekipman\u0131 12VDC, 24VAC, 24VDC, Ethernet \u00fczerinden G\u00fc\u00e7 veya \u00e7ift voltajl\u0131 giri\u015f kullanabilir. Bunlar sadece her iki \u00fcr\u00fcnde de \u201c24\u201d say\u0131s\u0131 g\u00f6r\u00fcnd\u00fc\u011f\u00fc i\u00e7in de\u011fi\u015ftirilemez.<\/p>\n<p>Aksesuarlar\u0131 ayr\u0131 kontrol edin. Is\u0131t\u0131lm\u0131\u015f bir g\u00f6vde, pan-tilt-zoom mekanizmas\u0131, k\u0131z\u0131l\u00f6tesi ayd\u0131nlat\u0131c\u0131, mikrofon, kablosuz k\u00f6pr\u00fc ve kodlay\u0131c\u0131 kameradan farkl\u0131 g\u00fc\u00e7 gereksinimlerine sahip olabilir. En zorlu \u00e7al\u0131\u015fma ko\u015fullar\u0131nda maksimum talebi kullan\u0131n. K\u0131z\u0131l\u00f6tesi LED 'ler genellikle geceleri a\u00e7\u0131l\u0131r, \u0131s\u0131t\u0131c\u0131lar so\u011fuk havalarda ba\u015flar ve PTZ motorlar\u0131 aral\u0131kl\u0131 olarak hareket eder; g\u00fc\u00e7 kayna\u011f\u0131 birlikte meydana gelebilecek kombinasyonu ele almal\u0131d\u0131r.<\/p>\n<p>Bir kamera 12 - 24VDC gibi geni\u015f bir aral\u0131\u011f\u0131 kabul ediyorsa, tercih edilen nominal gerilimi se\u00e7mek i\u00e7in \u00fcreticinin talimatlar\u0131n\u0131 kullan\u0131n. Asla konekt\u00f6r \u015feklinden veya ayn\u0131 serideki ba\u015fka bir kameradan uyumluluk \u00e7\u0131karmay\u0131n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"12V_and_24V_at_the_Same_Power\"><\/span>12V ve 24V ayn\u0131 g\u00fc\u00e7te<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Belirli bir y\u00fck g\u00fcc\u00fc i\u00e7in, artan da\u011f\u0131t\u0131m voltaj\u0131 ak\u0131m\u0131 azalt\u0131r:<\/p>\n<p><strong>Ak\u0131m = Power \u00f7 Voltage<\/strong><\/p>\n<p>12W kamera ideal olarak 12V 'da 1A, ancak 24V' de sadece 0.5A \u00e7eker. D\u00fc\u015f\u00fck ak\u0131m, bir kabloda kaybedilen voltaj\u0131 ve iletken direncinin \u00fcretti\u011fi \u0131s\u0131y\u0131 azalt\u0131r. Kablo g\u00fc\u00e7 kayb\u0131 ak\u0131m\u0131n karesiyle orant\u0131l\u0131 oldu\u011fundan, fark uzun s\u00fcr\u00fc\u015flerde veya birka\u00e7 kamera bir g\u00f6vdeyi payla\u015ft\u0131\u011f\u0131nda \u00f6nemli olabilir.<\/p>\n<p>Bu, 24V 'un otomatik olarak daha iyi oldu\u011fu anlam\u0131na gelmez. Kamera uyumlulu\u011fu, DC' ye kar\u015f\u0131 AC, mevcut malzemeler, kod gereksinimleri, yedek ekipman, konekt\u00f6rler ve servis uygulamalar\u0131 her \u015fey \u00f6nemlidir. Bir\u00e7ok kompakt kamera \u00f6zellikle 12VDC veya PoE i\u00e7in tasarlanm\u0131\u015ft\u0131r. K\u0131sa s\u00fcreli iyi tasarlanm\u0131\u015f 12V sistemi tamamen uygun olabilir.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_Voltage_Drop_Often_Decides_Between_12V_and_24V\"><\/span>Voltaj D\u00fc\u015f\u00fc\u015f\u00fc Neden Genellikle 12V ve 24V Aras\u0131nda Karar Verir<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure class=\"weho-blog-image\"><img decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/08\/02-long-run-voltage-testing.png?quality=85&strip=all\" alt=\"Power Supply for CCTV Cameras: 12V vs 24V Selection Guide  title=\" loading=\"lazy\" power supply for cctv cameras: 12v vs 24v selection guide title=\"\"><\/figure>\n<p>Her kablonun direnci vard\u0131r. Kamera besleme voltaj\u0131 eksi hem giden hem de d\u00f6n\u00fc\u015f iletkenleri aras\u0131ndaki d\u00fc\u015f\u00fc\u015f al\u0131r:<\/p>\n<p><strong>Voltaj d\u00fc\u015f\u00fc\u015f\u00fc = ak\u0131m x toplam devre direnci<\/strong><\/p>\n<p>12W 'l\u0131k bir y\u00fck\u00fcn 1.2 \u03a9 toplam dirence sahip bir kablo yolu \u00fczerinden ba\u011fland\u0131\u011f\u0131n\u0131 varsayal\u0131m. 12V ve 1A' da teorik d\u00fc\u015f\u00fc\u015f 1.2V 'dir, konekt\u00f6r ve besleme toleranslar\u0131ndan \u00f6nce yakla\u015f\u0131k 10.8V b\u0131rak\u0131r. 24V ve 0.5A' da d\u00fc\u015f\u00fc\u015f 0.6V 'dir, kameran\u0131n 24V i\u00e7in tasarland\u0131\u011f\u0131n\u0131 varsayarak, daha fazla marja sahiptir.<\/p>\n<p>\u0130letken malzemesi, kesit alan\u0131, tam d\u00f6ng\u00fc uzunlu\u011fu, beklenen ak\u0131m, ortam s\u0131cakl\u0131\u011f\u0131 ve kameran\u0131n minimum giri\u015f voltaj\u0131ndan her bir ko\u015fuyu hesaplay\u0131n. K\u0131z\u0131l\u00f6tesi, \u0131s\u0131t\u0131c\u0131, PTZ ve di\u011fer maksimum y\u00fckler etkinken kameradaki gerilimi \u00f6l\u00e7\u00fcn. Bo\u015f bir kablonun \u00f6l\u00e7\u00fclmesi ger\u00e7ek d\u00fc\u015f\u00fc\u015f\u00fc gizleyebilir.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Do_Not_Compensate_Blindly_by_Raising_the_Supply_Voltage\"><\/span>Arz voltaj\u0131n\u0131 art\u0131rarak k\u00f6r telafi etmeyin<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Baz\u0131 malzemeler s\u0131n\u0131rl\u0131 ayarlamaya izin verir, ancak kablo d\u00fc\u015f\u00fc\u015f\u00fcn\u00fcn \u00fcstesinden gelmek i\u00e7in artan \u00e7\u0131k\u0131\u015f yak\u0131ndaki kameralar\u0131 veya hafif y\u00fckl\u00fc bir devreyi a\u015f\u0131r\u0131 gerilime u\u011fratabilir. Beslemeyi ekipman de\u011ferleri i\u00e7inde tutun ve a\u015f\u0131r\u0131 d\u00fc\u015f\u00fc\u015f\u00fc uygun kablo boyutu, daha y\u00fcksek uyumlu da\u011f\u0131t\u0131m voltaj\u0131, daha yak\u0131n yerel besleme veya farkl\u0131 bir g\u00fc\u00e7 mimarisi ile \u00e7\u00f6z\u00fcn.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Build_a_Complete_CCTV_Power_Budget\"><\/span>Komple CCTV G\u00fc\u00e7 B\u00fct\u00e7esi Olu\u015fturun<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Her g\u00fc\u00e7 kullanan ayg\u0131t\u0131 ve en k\u00f6t\u00fc durum talebini listeleyin. Tipik t\u00fcketim yerine veri sayfas\u0131 maksimum de\u011ferlerini kullan\u0131n.<\/p>\n<table class=\"weho-blog-table\">\n<thead>\n<tr>\n<th>\u00d6rnek Ekipmanlar<\/th>\n<th>Miktar<\/th>\n<th>Maksimum g\u00fc\u00e7 her<\/th>\n<th>Alt Toplam<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Sabit kamera<\/td>\n<td>8<\/td>\n<td>8W<\/td>\n<td>64W<\/td>\n<\/tr>\n<tr>\n<td>PTZ camera<\/td>\n<td>2<\/td>\n<td>24W<\/td>\n<td>48W<\/td>\n<\/tr>\n<tr>\n<td>Wireless bridge<\/td>\n<td>1<\/td>\n<td>12W<\/td>\n<td>12W<\/td>\n<\/tr>\n<tr>\n<td>Environmental housing heater<\/td>\n<td>2<\/td>\n<td>15W<\/td>\n<td>30W<\/td>\n<\/tr>\n<tr>\n<td><strong>Example total<\/strong><\/td>\n<td><\/td>\n<td><\/td>\n<td><strong>154W<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Add suitable headroom for supply temperature, aging, cable loss, startup events, and future channels. A 25% planning allowance would make the example target approximately 193W, but dynamic loads still need a separate peak-current check. If the power supply has multiple outputs, verify both the total rating and the maximum current permitted on each channel.<\/p>\n<p>The recorder, network switch, monitor, storage, and control equipment may require their own protected AC or DC circuits. Do not combine them into the camera calculation unless they are actually powered from the same supply.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Centralized_Local_or_Distributed_Power\"><\/span>Merkezi, Yerel veya Da\u011f\u0131t\u0131lm\u0131\u015f G\u00fc\u00e7<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Centralized_Security_Power_Supply\"><\/span>G\u00fcvenlik G\u00fc\u00e7 Kayna\u011f\u0131 Power Supply<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A central enclosure simplifies backup, branch fusing, service access, and monitoring. Each camera should have a protected output or a properly coordinated branch device. Centralized 12V works best when runs and currents remain within the voltage-drop budget. Centralized 24V can support longer runs when the cameras accept it.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Local_Power_Adapters\"><\/span>Yerel G\u00fc\u00e7 Adapt\u00f6rleri<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Placing an adapter near each camera reduces low-voltage cable distance, but it creates many AC connection points and may complicate backup power, weather protection, maintenance, and tamper resistance. For small indoor systems, a suitable approved <a href=\"https:\/\/www.wehopower.com\/tr\/product-category\/power-adapter\/\">WEHO power adapter<\/a> can be practical when its connector, voltage, current, environment, and regulatory requirements match the camera.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Distributed_Low-Voltage_Cabinets\"><\/span>Da\u011f\u0131t\u0131lm\u0131\u015f D\u00fc\u015f\u00fck Voltaj Kabinleri<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Large sites can use several protected distribution points, each located near a camera group. This limits cable drop while retaining centralized branch control within each zone. The upstream design must coordinate AC supply, surge protection, grounding, battery backup, and communication pathways.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Power_over_Ethernet\"><\/span>Ethernet \u00fczerinden g\u00fc\u00e7<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>PoE delivers data and power on network cabling and can simplify IP camera installations. Its power class, switch budget, cable length, temperature, redundancy, and surge protection must still be engineered. A Blog comparing 12V and 24V does not replace the camera and switch manufacturer&#8217;s PoE requirements.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Matching_the_Architecture_to_WEHO_Power_Supply_Families\"><\/span>Mimariyi WEHO Power Supply Ailelerine E\u015fle\u015ftirme<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure class=\"weho-blog-image\"><img decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/08\/03-security-power-supply-cabinet.png?quality=85&strip=all\" alt=\"Power Supply for CCTV Cameras: 12V vs 24V Selection Guide  title=\" loading=\"lazy\" power supply for cctv cameras: 12v vs 24v selection guide title=\"\"><\/figure>\n<p>WEHO&#8217;s <a href=\"https:\/\/www.wehopower.com\/tr\/product-category\/security-power-supply\/\">Security Power Supply category<\/a> is the most relevant landing page for centralized camera and access-control applications. It includes two useful system directions:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.wehopower.com\/tr\/product_category\/security-power-supply\/sc-series-for-battery-charger-power-supply\/\">SC Series battery-charger power supplies<\/a> provide security-oriented power and battery-charging functions for compatible backup architectures.<\/li>\n<li><a href=\"https:\/\/www.wehopower.com\/tr\/product_category\/security-power-supply\/ad-series-ups-power-supply\/\">AD Series UPS power supplies<\/a> combine load delivery with battery-backup functionality for security systems.<\/li>\n<\/ul>\n<p>For a high-capacity AC-DC branch where an enclosed supply is appropriate, WEHO also offers 12V and 24V versions across its <a href=\"https:\/\/www.wehopower.com\/tr\/product_category\/enclosed-switching-power-supply\/\">enclosed switching power supply families<\/a>. One example is the <a href=\"https:\/\/www.wehopower.com\/tr\/product\/power-supply-12v-24v-36v-48v-500w-switching-power-supply-for-led-strip-cctv-camera\/\">LRS-500 series<\/a>, available in 12V and 24V variants for larger load groups. Selection must consider enclosure, cooling, terminal guarding, branch protection, backup requirements, and the relevant safety approvals for the final installation.<\/p>\n<p>Choose voltage first from camera compatibility and cable design. Then choose the supply family from total load, channel arrangement, backup time, alarm functions, environment, installation method, and service requirements. A high wattage alone does not make a product suitable for a particular CCTV site.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Battery_Backup_and_Required_Runtime\"><\/span>Batarya Yedekleme ve Gerekli \u00c7al\u0131\u015fma S\u00fcresi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Security systems often need to remain active during a power failure. Define which cameras, recorders, switches, communications links, and access-control devices are critical. Calculate their energy demand in watt-hours:<\/p>\n<p><strong>Required load energy = total critical power \u00d7 backup hours<\/strong><\/p>\n<p>A 120W critical load operating for four hours ideally requires 480Wh. The battery must be larger after accounting for conversion losses, allowable depth of discharge, temperature, aging, discharge rate, charger recovery, and reserve margin. Lead-acid and lithium batteries have different charging and protection requirements.<\/p>\n<p>Use a security power supply or UPS architecture designed for the chosen battery chemistry. Do not attach a battery directly to an ordinary fixed-output supply unless the system is specifically designed and documented for charging, low-voltage protection, and transfer behavior.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Protection_Grounding_and_Surge_Control\"><\/span>Koruma, Topraklama ve Dalgalanma Kontrol\u00fc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Protect the AC input and every low-voltage branch according to the conductor and equipment ratings. A multi-channel cabinet with individually protected outputs helps prevent one cable fault from disabling the entire system. Select DC-rated fuses or breakers where DC interruption is required.<\/p>\n<p>Outdoor camera cables can carry surge energy into the building. Follow the site design for surge protection, bonding, earthing, shield termination, and separation from mains conductors. Avoid creating ground loops between camera housings, power returns, coaxial shields, network equipment, and structural metal.<\/p>\n<p>Power-supply internal overvoltage or overload protection does not replace external surge protection or branch cable protection. Requirements depend on the installation location, building rules, lightning exposure, and equipment approvals.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cable_and_Connector_Practices\"><\/span>Kablo ve Ba\u011flay\u0131c\u0131 Uygulamalar\u0131<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Use conductor size calculated for current and full loop distance. Check terminal and connector ratings, especially on high-current centralized outputs. Barrel connectors can look identical while using different polarity or dimensions. Label circuits at both ends and document the camera served by each branch.<\/p>\n<p>Keep low-voltage power away from mains wiring as required. Support cables so their weight does not pull on camera or supply terminals. In outdoor locations, use suitable glands, drip loops, sealed junction boxes, corrosion-resistant connectors, and strain relief. A weather-resistant camera does not make an exposed power connection weather-resistant.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Commissioning_Checklist\"><\/span>Kontrol Listesi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure class=\"weho-blog-image\"><img decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/08\/04-cctv-system-commissioning.png?quality=85&strip=all\" alt=\"Power Supply for CCTV Cameras: 12V vs 24V Selection Guide  title=\" loading=\"lazy\" power supply for cctv cameras: 12v vs 24v selection guide title=\"\"><\/figure>\n<ol>\n<li>Verify the voltage type and allowable range for every camera and accessory.<\/li>\n<li>Confirm calculated total load, peak demand, and per-channel current.<\/li>\n<li>Check power-supply input selection and protective earth before energizing.<\/li>\n<li>Measure unloaded output voltage and polarity at the distribution cabinet.<\/li>\n<li>Connect one branch at a time and confirm that its protection is correctly identified.<\/li>\n<li>Measure camera-terminal voltage in daytime and with IR illumination, heaters, and PTZ movement active.<\/li>\n<li>Confirm stable video and network operation during the highest combined demand.<\/li>\n<li>Test mains-failure transfer, battery operation, alarms, and low-voltage shutdown where applicable.<\/li>\n<li>Inspect supply, terminals, branch fuses, and cables for abnormal heating after an extended run.<\/li>\n<li>Record voltage and current readings as a maintenance baseline.<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"Common_Selection_Mistakes\"><\/span>Genel se\u00e7im hatalar\u0131<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Assuming_Every_Camera_Uses_12VDC\"><\/span>Her Kamera 12VDC Kullan\u0131yor<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Cameras can use 12VDC, 24VAC, 24VDC, PoE, or dual-voltage inputs. Read the exact model documentation.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Sizing_From_Daytime_Current\"><\/span>Daytime Current 'dan G\u00fcn\u00fcm\u00fcze Do\u011fru<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Infrared LEDs, heaters, and PTZ motors may create the worst load at night or in cold weather.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ignoring_the_Return_Conductor\"><\/span>S\u00fcr\u00fcc\u00fc geri d\u00f6n\u00fc\u015f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Voltage-drop calculations must include both outgoing and return paths.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Using_One_Large_Fuse_for_Small_Camera_Wires\"><\/span>K\u00fc\u00e7\u00fck Kamera Kablolar\u0131 i\u00e7in B\u00fcy\u00fck Bir Fuse Kullanma<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A main fuse sized for the total supply may not protect an individual branch. Coordinate protection per circuit.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mixing_AC_and_DC_Ratings\"><\/span>AC ve DC Derecelendirmeleri<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A device rated for 24VAC is not automatically compatible with 24VDC. Confirm voltage type and range.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>SSS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Is_24V_always_better_for_long_CCTV_cable_runs\"><\/span>24V her zaman uzun CCTV kablosu i\u00e7in daha iyi midir?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>It generally reduces current and voltage drop for the same power, but only when the camera accepts the specific 24V supply type. Cable calculation and camera limits remain mandatory.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_I_power_a_12V_camera_from_a_24V_supply_with_a_resistor\"><\/span>12V kameray\u0131 bir diren\u00e7le 24V kayna\u011f\u0131ndan \u00e7al\u0131\u015ft\u0131rabilir miyim?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No. Camera current changes with operating mode, so a series resistor cannot provide reliable regulation. Use the correct 12V supply or a properly rated DC-DC converter at the load.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_much_spare_capacity_should_a_CCTV_power_supply_have\"><\/span>Bir CCTV g\u00fc\u00e7 kayna\u011f\u0131n\u0131n ne kadar yedek kapasitesi olmal\u0131d\u0131r?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Start from verified maximum simultaneous demand and add engineering allowance for losses, temperature, peaks, and expansion. The correct margin depends on camera behavior and supply specifications; a peak check is still required.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Should_every_camera_have_a_separate_fuse\"><\/span>Her kameran\u0131n ayr\u0131 bir fi\u015fi olmal\u0131 m\u0131?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Individual branch protection is generally preferable in centralized systems because it protects smaller conductors and limits the effect of one fault. Follow the cabinet and local installation requirements.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>\u00c7\u00f6z\u00fcm<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The choice between 12V and 24V CCTV power begins with camera compatibility and ends with a complete system check. Calculate maximum load, nighttime and heater demand, cable voltage drop, branch protection, backup runtime, environment, grounding, and surge exposure. Twelve volts is practical for many short, compatible runs; 24V can reduce current and improve long-run margin when the cameras explicitly support it.<\/p>\n<p>Explore the <a href=\"https:\/\/www.wehopower.com\/tr\/product-category\/security-power-supply\/\">WEHO Security Power Supply range<\/a> veya <a href=\"https:\/\/www.wehopower.com\/tr\/contact\/\">contact WEHO<\/a> with camera models, quantities, cable lengths, required voltage type, backup hours, and installation conditions for product selection support.<\/p>","protected":false},"excerpt":{"rendered":"<p>12V ve 24V CCTV g\u00fc\u00e7 sistemlerini kar\u015f\u0131la\u015ft\u0131r\u0131n, kamera y\u00fck\u00fcn\u00fc ve voltaj d\u00fc\u015f\u00fc\u015f\u00fcn\u00fc hesaplay\u0131n ve merkezi, yerel veya pil destekli g\u00fcc\u00fc se\u00e7in.<\/p>","protected":false},"author":1,"featured_media":16729,"parent":0,"menu_order":190,"comment_status":"closed","ping_status":"","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[149,148],"class_list":["post-16733","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_category-blog","news_category-industry-news","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/tr\/wp-json\/wp\/v2\/news\/16733","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/tr\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/tr\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/tr\/wp-json\/wp\/v2\/comments?post=16733"}],"version-history":[{"count":1,"href":"https:\/\/www.wehopower.com\/tr\/wp-json\/wp\/v2\/news\/16733\/revisions"}],"predecessor-version":[{"id":16750,"href":"https:\/\/www.wehopower.com\/tr\/wp-json\/wp\/v2\/news\/16733\/revisions\/16750"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/tr\/wp-json\/wp\/v2\/media\/16729"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/tr\/wp-json\/wp\/v2\/media?parent=16733"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/tr\/wp-json\/wp\/v2\/news_category?post=16733"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}