Nau'in F na lantarki (wanda kuma aka sani da Schuko - gajere don "Schutzkontakt" a cikin Jamusanci) don igiyoyi har zuwa 16 A.
Yana da kyau a san game da toshe Schuko, kamar yadda ake amfani da shi a cikin nau'ikan kayan lantarki da yawa, ba kawai samfuran Jamus ba.A gaskiya ma, yawancin na'urorin Turai suna sanye da irin waɗannan kwasfa.Ana amfani da wannan haɗin F a Jamus, Austria, Netherlands, Sweden, Finland, Norway, Portugal, Spain da Gabashin Turai.Ainihin ana amfani da na'urorin Schuko iri ɗaya a Rasha da ƙasashen gabashin Turai, ban da Poland, Jamhuriyar Czech da Slovakia.
Nau'in F na wutar lantarki ana kiran su CEE 7/4, wanda aka fi sani da "Schuko plugs", a takaice na "Schu tz ko ntakt", kalmar Jamus don "labaran kariya" ko "labaran aminci".
Asalin ƙirar aminci, toshe ƙasa da soket shine ra'ayin Albert Büttner (Bayerische Elektrozubehör a Lauf).An ba da izini a cikin 1926. Filogi yana da shirin ƙasa maimakon na (na uku) na ƙasa.Ci gaban ci gaba ya haifar da wani sigar, wanda Siemens-Schuckerwerke ya ba da izini a cikin 1930 a Berlin.Tabbacin ya bayyana filogi da soket har yanzu ana amfani da shi kuma aka sani da Schuko.
Schuko alamar kasuwanci ce mai rijista ta SCHUKO-Warenzeichenverband eV, Bad Dürkheim, Jamus.
An tsara filogi a Jamus jim kaɗan bayan yakin duniya na farko.Ya samo asali ne zuwa wani lamban kira (DE 370538) da aka bai wa ƙera kayan haɗin lantarki na Bavaria Albert Büttner a 1926.
Nau'in F yana kama da nau'in nau'in nau'in C, sai dai yana da zagaye kuma yana ƙara indents tare da shirye-shiryen bidiyo a sama da kasa zuwa ƙasa na'urar.Filogin ba daidai ba ne, amma yana da nau'i-nau'i na robobi a hagu da dama don samar da ƙarin kwanciyar hankali yayin amfani da manyan matosai masu nauyi irin su na'urorin wutar lantarki.
Nau'in nau'in Schuko F yana da fitilun zagaye biyu na 4.8mm tare da tsayin 19mm da tazarar tsakiyar-zuwa-tsakiyar 19mm.Tazarar da ke tsakanin ɗaya daga cikin shirye-shiryen ƙasa guda biyu da tsakiyar tsakiyar layi na haƙiƙa mai haɗa cibiyoyin fitilun wuta guda biyu shine mm 16.Saboda ana iya shigar da filogin CEE 7/4 a cikin rumbun ta ko wace hanya, tsarin haɗin Schuko ba shi da iyaka (watau layi da tsaka-tsaki ana haɗa su ba da gangan ba).Ana amfani dashi don aikace-aikace har zuwa 16 amps.Baya ga wannan, na'urar dole ne a haɗa ta har abada zuwa manyan hanyoyin sadarwa ko ta wani mai haɗin wuta mafi girma kamar tsarin IEC 60309.
F-type Schuko plug connectors sun dace sosai tare da nau'in nau'in E, amma wannan ba haka ba ne a baya.Don ƙera bambance-bambance tsakanin kwas ɗin E da F, an ƙirƙiri wani nau'in toshe E/F (wanda aka fi sani da CEE 7/7).Wannan filogi ainihin ƙa'idar gama gari ce ta Nahiyar Turai don yin ƙasa, tare da shirye-shiryen ƙasa a ɓangarorin biyu don saduwa da soket na Nau'in F, da tuntuɓar mace don karɓar fil ɗin ƙasa na soket ɗin Nau'in E.Nau'in F EU na asali ba shi da wannan tuntuɓar mace, kuma yayin da yanzu ya ƙare, wasu shagunan DIY na iya ba da nau'ikan sakewa.Nau'in C matosai sun dace daidai da kwasfa na Nau'in F.An soke soket ɗin da 15mm, don haka babu haɗarin girgiza wutar lantarki daga wani ɓangaren da aka saka filogi.