{"id":9940,"date":"2026-04-01T23:48:14","date_gmt":"2026-04-01T15:48:14","guid":{"rendered":"https:\/\/profixtips.com\/?p=9940"},"modified":"2026-04-02T00:24:18","modified_gmt":"2026-04-01T16:24:18","slug":"how-to-choose-ptc-start-relay-qp2-series-ptc-start-relay-data-sheet-and-selection-guide","status":"publish","type":"post","link":"https:\/\/profixtips.com\/sl\/how-to-choose-ptc-start-relay-qp2-series-ptc-start-relay-data-sheet-and-selection-guide\/","title":{"rendered":"Kot va\u0161 zanesljiv partner smo predani temu, da smo trdna hrbtenica va\u0161ega servisnega podjetja."},"content":{"rendered":"

Raz PTC (Positive Temperature Coefficient) Starter Relay<\/b> is a critical \u201cgatekeeper\u201d for your refrigerator, freezer, or wine cooler compressor. If your appliance is clicking but not starting, or the compressor feels hot to the touch, a failed QP2 relay is the most likely culprit.<\/p>\n

This guide provides a technical deep-dive into the QP2-Series Datasheet<\/b> to help you select the exact replacement based on resistance, pins, and power requirements.<\/p>\n

\n
1. The Science Behind PTC Starters<\/h2>\n
A PTC starter uses a ceramic disc that has low resistance when cold. Upon startup, it allows a high current to flow into the compressor\u2019s start winding. As it heats up, its resistance increases drastically (almost instantly), effectively \u201cdisconnecting\u201d the start winding once the motor reaches speed.<\/p>\n
2. Technical Specifications: QP2 Series Resistance Table<\/h2>\n
Selecting the wrong resistance can lead to a \u201cShort Cycle\u201d or a complete failure to start. Use a multimeter to check your current part against these standard values:<\/p>\n\n
<\/figure>\n\n
Opomba:<\/strong>\u00a0\u201cAbnormal Resistance\u201d is defined as any value significantly\u00a0higher<\/strong>\u00a0than the ranges listed above or an \u201cOpen Circuit\u201d (infinite ohms).<\/p>\n
3. Critical Selection Criteria (The 3-Point Check)<\/h2>\n
\u00a0<\/p>\n
A. Ohm Rating (The Most Important)<\/h3>\n
Typically the resistance (\u03a9) must match your original part. A\u00a0QP2-4.7<\/strong>\u00a0cannot be replaced by a \u200bQP2-22<\/strong>\u200b.\u00a0<\/p>\n
If the resistance is too high, the compressor won\u2019t get enough \u201ckick\u201d to start.<\/p>\n
B. Pin Configuration<\/h3>\n
The QP2 series is available in:<\/p>\n
\n
1-Pin:<\/strong>\u00a0Standard setup.<\/li>\n
2-Pin \/ 3-Pin:<\/strong>\u00a0Hitra navigacija\u00a0Run Capacitor<\/strong>\u00a0is involved in the circuit.
PTC (PTC) zaganjalni rele s pozitivnim temperaturnim koeficientom.<\/li>\n<\/ul>\n
je klju\u010dni \"vratar\" za kompresor va\u0161ega hladilnika, zamrzovalnika ali hladilnika za vino. \u010ce va\u0161a naprava klika, vendar se ne za\u017eene, ali je kompresor vro\u010d na dotik, je okvarjen rele QP2 najverjetnej\u0161i krivec.<\/h3>\n
Ta vodnik ponuja poglobljen tehni\u010dni vpogled v.<\/p>\n
\n
podatkovni list serije QP2<\/h2>\n
\n
, ki vam pomaga izbrati natan\u010dno zamenjavo glede na upornost, no\u017eice in zahteve po mo\u010di.<\/strong>\u00a01. Znanost za PTC zaganjalniki.<\/li>\n
PTC zaganjalnik uporablja kerami\u010dni disk, ki ima nizko upornost, ko je hladen. Ob zagonu omogo\u010di visok tok v zagonsko navitje kompresorja. Ko se segreje, se njegova upornost drasti\u010dno pove\u010da (skoraj v trenutku), kar u\u010dinkovito \"odklopi\" zagonsko navitje, ko motor dose\u017ee hitrost.<\/strong>\u00a02. Tehni\u010dne specifikacije: Tabela upornosti serije QP2.<\/li>\n
Izbira napa\u010dne upornosti lahko povzro\u010di \"kratek cikel\" ali popolno neuspe\u0161nost zagona. Z multimetrom preverite svoj trenutni del glede na te standardne vrednosti:<\/strong>\u00a0Look for burn marks or a \u201cburnt toast\u201d smell near the terminals.<\/li>\n<\/ol>\n
\n
\"Nenormalna upornost\" je opredeljena kot katera koli vrednost, ki je znatno<\/h2>\n
\u00a0<\/p>\n
vi\u0161ja<\/h3>\n
od zgoraj navedenih razponov ali \"odprt tokokrog\" (neskon\u010dni ohmi).\u00a03. Klju\u010dna merila za izbiro (3-to\u010dkovni pregled)<\/strong>\u00a0A. Ocena v ohmih (najpomembnej\u0161e).\u00a0<\/p>\n
Obi\u010dajno mora upornost (\u03a9) ustrezati va\u0161emu originalnemu delu.\u00a0QP2-4.7<\/strong>\u00a0ne more biti zamenjan z.<\/p>\n
QP2-22<\/h3>\n
.\u00a0\u010ce je upornost previsoka, kompresor ne bo dobil dovolj \"zagona\", da bi se za\u010del vrteti.<\/strong>\u00a0B. Konfiguracija no\u017eic.<\/p>\n
Serija QP2 je na voljo v:<\/h3>\n
1-no\u017eica:\u00a0Standardna nastavitev.<\/strong>\u00a02-no\u017eici \/ 3-no\u017eice:.<\/p>\n
Pogosto se uporablja, ko je v vezju vklju\u010den<\/h3>\n
pogonski kondenzator\u00a0.<\/strong>\u00a0Prepri\u010dajte se, da ima zamenjava enako \u0161tevilo no\u017eic v enakih polo\u017eajih.<\/p>\n\n
Quick Navigation<\/h3>\n\n
C. Fizi\u010dna velikost ohi\u0161ja<\/h3>\n\n“Not sure which one you need? Check the resistance value (Ohm) printed on your original relay or refer to our comparison table above.”\n\n
4. Odpravl<\/h3>\n\n
<\/a><\/figure>\n\n
<\/figure>\n\n
<\/figure>\n\n
<\/figure>\n\n
<\/figure>","protected":false},"excerpt":{"rendered":"
The PTC (Positive Temperature Coefficient) Starter Relay is a critical “gatekeeper” for your refrigerator, freezer, or wine cooler compressor. If your appliance is clicking but not starting, or the compressor feels hot to the touch, a failed QP2 relay is the most likely culprit. This guide provides a technical deep-dive into the QP2-Series Datasheet to […]<\/p>\n","protected":false},"author":1,"featured_media":9950,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,32],"tags":[629,630,628],"class_list":["post-9940","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-refrigerator-repair-tips","category-appliance-repair-tips","tag-how-to-choose-ptc-start-relay","tag-qp2-series-ptc-starter-data-sheet","tag-refrigerator-repair-tips"],"_links":{"self":[{"href":"https:\/\/profixtips.com\/sl\/wp-json\/wp\/v2\/posts\/9940","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/profixtips.com\/sl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/profixtips.com\/sl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/profixtips.com\/sl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/profixtips.com\/sl\/wp-json\/wp\/v2\/comments?post=9940"}],"version-history":[{"count":0,"href":"https:\/\/profixtips.com\/sl\/wp-json\/wp\/v2\/posts\/9940\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/profixtips.com\/sl\/wp-json\/wp\/v2\/media\/9950"}],"wp:attachment":[{"href":"https:\/\/profixtips.com\/sl\/wp-json\/wp\/v2\/media?parent=9940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/profixtips.com\/sl\/wp-json\/wp\/v2\/categories?post=9940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/profixtips.com\/sl\/wp-json\/wp\/v2\/tags?post=9940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

\"Nenormalna upornost\" je opredeljena kot katera koli vrednost, ki je znatno<\/h2>\n\u00a0<\/p>\n

C. Fizi\u010dna velikost ohi\u0161ja<\/h3>\n\n“Not sure which one you need? Check the resistance value (Ohm) printed on your original relay or refer to our comparison table above.”\n\n

\"Nenormalna upornost\" je opredeljena kot katera koli vrednost, ki je znatno<\/h2>\n
\u00a0<\/p>\n