{"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\/hu\/how-to-choose-ptc-start-relay-qp2-series-ptc-start-relay-data-sheet-and-selection-guide\/","title":{"rendered":"How to Choose PTC Start Relay:QP2 Series PTC Start Relay Data-Sheet and Selection Guide"},"content":{"rendered":"

The 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
Megjegyz\u00e9s:<\/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
Gyors navig\u00e1ci\u00f3<\/strong>\u00a0Often used when a\u00a0A<\/strong>\u00a0PTC (pozit\u00edv h\u0151m\u00e9rs\u00e9kleti egy\u00fctthat\u00f3j\u00fa) ind\u00edt\u00f3rel\u00e9.
egy kritikus \u201ekapu\u0151r\u201d a h\u0171t\u0151szekr\u00e9ny, fagyaszt\u00f3 vagy borh\u0171t\u0151 kompresszora sz\u00e1m\u00e1ra. Ha a k\u00e9sz\u00fcl\u00e9k kattog, de nem indul, vagy a kompresszor forr\u00f3 tapint\u00e1s\u00fa, a hib\u00e1s QP2 rel\u00e9 a legval\u00f3sz\u00edn\u0171bb b\u0171n\u00f6s.<\/li>\n<\/ul>\n
Ez az \u00fatmutat\u00f3 egy technikai m\u00e9lymer\u00fcl\u00e9st ny\u00fajt a<\/h3>\n
QP2-sorozat adatlapj\u00e1ba.<\/p>\n
\n
, hogy seg\u00edtsen kiv\u00e1lasztani a pontos cserealkatr\u00e9szt az ellen\u00e1ll\u00e1s, a l\u00e1bak \u00e9s a teljes\u00edtm\u00e9nyig\u00e9nyek alapj\u00e1n.<\/h2>\n
\n
1. A PTC ind\u00edt\u00f3k tudom\u00e1nya<\/strong>\u00a0A PTC ind\u00edt\u00f3 egy ker\u00e1mia korongot haszn\u00e1l, amely hidegen alacsony ellen\u00e1ll\u00e1s\u00fa. Ind\u00edt\u00e1skor nagy \u00e1ramot enged a kompresszor ind\u00edt\u00f3tekercs\u00e9be. Ahogy felmelegszik, ellen\u00e1ll\u00e1sa drasztikusan megn\u0151 (szinte azonnal), hat\u00e9konyan \u201elev\u00e1lasztva\u201d az ind\u00edt\u00f3tekercset, amint a motor el\u00e9ri a fordulatsz\u00e1mot.<\/li>\n
2. M\u0171szaki specifik\u00e1ci\u00f3k: QP2 sorozat ellen\u00e1ll\u00e1s t\u00e1bl\u00e1zat<\/strong>\u00a0A rossz ellen\u00e1ll\u00e1s kiv\u00e1laszt\u00e1sa \u201cr\u00f6vid ciklushoz\u201d vagy teljes ind\u00edt\u00e1si k\u00e9ptelens\u00e9ghez vezethet. Haszn\u00e1ljon multim\u00e9tert az aktu\u00e1lis alkatr\u00e9sz ellen\u0151rz\u00e9s\u00e9hez ezekkel a standard \u00e9rt\u00e9kekkel szemben:.<\/li>\n
Visual Inspection:<\/strong>\u00a0A \u201crendellenes ellen\u00e1ll\u00e1s\u201d minden olyan \u00e9rt\u00e9k, amely jelent\u0151sen.<\/li>\n<\/ol>\n
\n
magasabb<\/h2>\n
\u00a0<\/p>\n
a fent felsorolt tartom\u00e1nyokn\u00e1l, vagy \u201eszakadt \u00e1ramk\u00f6r\u201d (v\u00e9gtelen ohm).<\/h3>\n
3. Kritikus kiv\u00e1laszt\u00e1si szempontok (a 3 pontos ellen\u0151rz\u00e9s)\u00a0A. Ohm \u00e9rt\u00e9k (a legfontosabb)<\/strong>\u00a0\u00c1ltal\u00e1ban az ellen\u00e1ll\u00e1snak (\u03a9) meg kell egyeznie az eredeti alkatr\u00e9sszel. Egy.\u00a0<\/p>\n
QP2-4.7\u00a0nem helyettes\u00edthet\u0151 egy \u200b<\/strong>\u00a0QP2-22.<\/p>\n
\u200b.<\/h3>\n
Ha az ellen\u00e1ll\u00e1s t\u00fal magas, a kompresszor nem kap el\u00e9g \u201el\u00f6k\u00e9st\u201d az ind\u00edt\u00e1shoz.\u00a0B. L\u00e1bkioszt\u00e1s<\/strong>\u00a0A QP2 sorozat el\u00e9rhet\u0151:.<\/p>\n
1-l\u00e1b\u00fa:<\/h3>\n
Standard be\u00e1ll\u00edt\u00e1s.\u00a02-l\u00e1b\u00fa \/ 3-l\u00e1b\u00fa:<\/strong>\u00a0Gyakran haszn\u00e1lj\u00e1k, ha egy.<\/p>\n
\u00fczemi kondenz\u00e1tor<\/h3>\n
is r\u00e9sze az \u00e1ramk\u00f6rnek.\u00a0Gy\u0151z\u0151dj\u00f6n meg arr\u00f3l, hogy a cserealkatr\u00e9sz ugyanannyi lapos csatlakoz\u00f3val rendelkezik ugyanazokon a helyeken.<\/strong>\u00a0C. Fizikai h\u00e1z m\u00e9ret.<\/p>\n\n
Quick Navigation<\/h3>\n\n
B\u00e1r a legt\u00f6bb QP2 egys\u00e9g standard, mindig ellen\u0151riz<\/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
Related Maintenance Tips<\/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\/hu\/wp-json\/wp\/v2\/posts\/9940","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/profixtips.com\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/profixtips.com\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/profixtips.com\/hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/profixtips.com\/hu\/wp-json\/wp\/v2\/comments?post=9940"}],"version-history":[{"count":0,"href":"https:\/\/profixtips.com\/hu\/wp-json\/wp\/v2\/posts\/9940\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/profixtips.com\/hu\/wp-json\/wp\/v2\/media\/9950"}],"wp:attachment":[{"href":"https:\/\/profixtips.com\/hu\/wp-json\/wp\/v2\/media?parent=9940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/profixtips.com\/hu\/wp-json\/wp\/v2\/categories?post=9940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/profixtips.com\/hu\/wp-json\/wp\/v2\/tags?post=9940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

Ez az \u00fatmutat\u00f3 egy technikai m\u00e9lymer\u00fcl\u00e9st ny\u00fajt a<\/h3>\nQP2-sorozat adatlapj\u00e1ba.<\/p>\n\n

magasabb<\/h2>\n\u00a0<\/p>\n

B\u00e1r a legt\u00f6bb QP2 egys\u00e9g standard, mindig ellen\u0151riz<\/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

Ez az \u00fatmutat\u00f3 egy technikai m\u00e9lymer\u00fcl\u00e9st ny\u00fajt a<\/h3>\n
QP2-sorozat adatlapj\u00e1ba.<\/p>\n
\n

magasabb<\/h2>\n
\u00a0<\/p>\n