{"id":31291,"date":"2026-09-27T02:26:28","date_gmt":"2026-09-27T02:26:28","guid":{"rendered":"https:\/\/gfevfuse.com\/?post_type=product&#038;p=31291"},"modified":"2026-11-09T22:10:23","modified_gmt":"2026-11-09T22:10:23","slug":"r3-11a-bayonet-lock-5x20mm-panel-fuse-holder","status":"publish","type":"product","link":"https:\/\/gfevfuse.com\/ko\/r3-11a-bayonet-lock-5x20mm-panel-fuse-holder\/","title":{"rendered":"R3-11A \ubca0\uc774\uc624\ub137 \uc7a0\uae08\uc2dd 5x20mm \ud328\ub110 \uc7a5\ucc29\ud615 \ud4e8\uc988 \ud640\ub354"},"content":{"rendered":"<pre><code>R3-11A Bayonet Lock 5x20mm Panel Mount Fuse Holder\r\n<\/code><\/pre>\n<h3>What Makes the R3-11A a Bayonet-Type Holder?<\/h3>\n<pre><code><\/code><\/pre>\n<p>The R3-11A uses a bayonet-style cap. You push it in and give it a quarter turn to lock. You do not need to spin a threaded cap multiple times. This quarter-turn action cuts fuse replacement time dramatically, especially in production-line testing or service environments where technicians swap fuses repeatedly.<\/p>\n<pre><code><\/code><\/pre>\n<p>The body mounts through a 1\/2&#8243;-28UNEF threaded hole and locks with a hex nut. The cap itself carries the &#8220;FUSE&#8221; marking and an arrow that shows the turn direction. Overall length is a compact 34.2mm, which leaves room for wiring behind the panel.<\/p>\n<pre><code><\/code><\/pre>\n<h3>Electrical and Mechanical Specifications<\/h3>\n<pre><code><\/code><\/pre>\n<ul>\n<li>Model: R3-11A<\/li>\n<li>Fuse size: 5 x 20 mm cylindrical<\/li>\n<li>Rated current: 10A<\/li>\n<li>Rated voltage: 250VAC \/ 125VDC<\/li>\n<li>Interrupt rating: 50A<\/li>\n<li>Body material: Black bakelite (phenolic resin), UL 94 V0<\/li>\n<li>Cap type: Bayonet quarter-turn lock<\/li>\n<li>Mounting thread: 1\/2&#8243;-28UNEF<\/li>\n<li>Front bezel diameter: 15.0mm<\/li>\n<li>Terminal material: 0.5mm phosphor copper<\/li>\n<li>Dielectric withstand: 3000VAC<\/li>\n<li>Contact resistance: &lt;5m\u03a9<\/li>\n<li>Insulation resistance: &gt;100M\u03a9<\/li>\n<li>Overall length: 34.2mm<\/li>\n<li>Body behind panel: 30.2mm<\/li>\n<li>Mounting thread engagement: 17.0mm<\/li>\n<li>Cap depth: 4.0mm<\/li>\n<\/ul>\n<pre><code><\/code><\/pre>\n<h3>Bayonet vs Screw Cap: R3-11A vs R3-11B<\/h3>\n<pre><code><\/code><\/pre>\n<pre><code><\/code><\/pre>\n<table>\n<thead>\n<tr>\n<th>Feature<\/th>\n<th>R3-11A (This Page)<\/th>\n<th>R3-11B<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Cap locking<\/td>\n<td>Bayonet quarter-turn<\/td>\n<td>Screw-on thread, full rotation<\/td>\n<\/tr>\n<tr>\n<td>Fuse change speed<\/td>\n<td>Fast (push + 90\u00b0 turn)<\/td>\n<td>Slower (multiple turns)<\/td>\n<\/tr>\n<tr>\n<td>Best for<\/td>\n<td>Frequent fuse swaps, production test<\/td>\n<td>Infrequent maintenance, sealed panels<\/td>\n<\/tr>\n<tr>\n<td>Vibration resistance<\/td>\n<td>Good (bayonet detent)<\/td>\n<td>Excellent (threaded cap)<\/td>\n<\/tr>\n<tr>\n<td>Body material<\/td>\n<td>Black bakelite UL 94 V0<\/td>\n<td>Black bakelite UL 94 V0<\/td>\n<\/tr>\n<tr>\n<td>Electrical ratings<\/td>\n<td>10A 250VAC\/125VDC, 50A<\/td>\n<td>10A 250VAC\/125VDC, 50A<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<pre><code><\/code><\/pre>\n<p>Choose the R3-11A when speed matters. Choose the R3-11B when the cap must stay locked through high vibration or after long-term sealing.<\/p>\n<pre><code><\/code><\/pre>\n<h3>Why Black Bakelite?<\/h3>\n<pre><code><\/code><\/pre>\n<p>The black phenolic body handles sustained heat without softening. It also resists tracking and surface arcing. Therefore, the R3-11A suits power supply inputs, charger circuits, and industrial control panels where the holder runs warm under load.<\/p>\n<pre><code><\/code><\/pre>\n<p>Phosphor copper terminals provide consistent spring pressure on the fuse ends. Contact resistance stays below 5m\u03a9. Meanwhile, the 3000VAC hi-pot test confirms reliable insulation between live parts and the mounting panel.<\/p>\n<pre><code><\/code><\/pre>\n<h3>Typical Applications<\/h3>\n<pre><code><\/code><\/pre>\n<ul>\n<li>Production line test stations<\/li>\n<li>Bench power supplies<\/li>\n<li>Industrial control panels<\/li>\n<li>Battery charger inputs<\/li>\n<li>Audio and rack-mounted equipment<\/li>\n<\/ul>\n<pre><code><\/code><\/pre>\n<h3>Datasheet<\/h3>\n<pre><code><\/code><\/pre>\n<p>[Download R3-11A specification sheet (PDF)]<a href=\"https:\/\/gfevfuse.com\/wp-content\/uploads\/2026\/09\/R3-11A-Panel-fuse-holder.pdf\">R3-11A Panel fuse holder<\/a><\/p>\n<pre><code><\/code><\/pre>\n<p>For the screw-cap version, see: <a href=\"\/product\/r3-11b-screw-cap-5x20mm-panel-fuse-holder\/\">R3-11B<\/a>.<a href=\"https:\/\/gfevfuse.com\/wp-content\/uploads\/2026\/09\/r3-11B.pdf\">R3 (11B) Panel Mount Fuse Holder for 5\u00d720mm Fuse<\/a><\/p>\n<pre><code><\/code><\/pre>\n<h2>FAQ<\/h2>\n<pre><code><\/code><\/pre>\n<h3>1: What is a bayonet-type fuse holder?<\/h3>\n<pre><code><\/code><\/pre>\n<p>A: A bayonet holder locks the cap with a quarter-turn push-and-twist motion. You push the cap in, rotate 90 degrees, and it clicks locked. No threading required.<\/p>\n<pre><code><\/code><\/pre>\n<h3>2: What is the difference between R3-11A and R3-11B?<\/h3>\n<pre><code><\/code><\/pre>\n<p>A: Both share the same bakelite body, 10A 250VAC\/125VDC ratings, and 1\/2&#8243;-28UNEF thread. R3-11A has a bayonet quarter-turn cap. R3-11B has a fully threaded screw cap.<\/p>\n<pre><code><\/code><\/pre>\n<h3>3: What size fuse does it accept?<\/h3>\n<pre><code><\/code><\/pre>\n<p>A: Standard 5x20mm cylindrical glass or ceramic fuses.<\/p>\n<pre><code><\/code><\/pre>\n<h3>4: What are the electrical ratings?<\/h3>\n<pre><code><\/code><\/pre>\n<p>A: 10A at 250VAC or 125VDC, with a 50A interrupt rating.<\/p>\n<pre><code><\/code><\/pre>\n<h3>5: What panel hole is required?<\/h3>\n<pre><code><\/code><\/pre>\n<p>A: A 1\/2&#8243;-28UNEF threaded hole. The front bezel is 15.0mm in diameter.<\/p>\n<pre><code><\/code><\/pre>\n<h3>6: Is the body flame retardant?<\/h3>\n<pre><code><\/code><\/pre>\n<p>A: Yes, the black bakelite phenolic body is rated UL 94 V0.<\/p>\n<pre><code><\/code><\/pre>\n<h3>7: How do I replace the fuse?<\/h3>\n<h3><\/h3>\n<h3>A: Push the cap in and turn 90 degrees counter-clockwise. The bayonet mechanism releases, and the cap comes off.<\/h3>\n<pre><code><\/code><\/pre>\n<pre><code><\/code><\/pre>\n<h3>8: Which version should I choose for vibration-prone equipment?<\/h3>\n<pre><code><\/code><\/pre>\n<p>A: Choose R3-11B (screw cap) for high vibration. R3-11A bayonet is better for frequent, fast fuse swaps.<\/p>\n<pre><code>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\ubca0\uc774\uc624\ub137 \ucffc\ud130\ud134 \ubc29\uc2dd\uc758 5x20mm \ud328\ub110 \ud4e8\uc988 \ud640\ub354, 10A 250VAC\/125VDC, 50A \ucc28\ub2e8 \uc6a9\ub7c9. \uac80\uc815\uc0c9 \ubca0\uc774\ud074\ub77c\uc774\ud2b8 UL94 V0 \uc7ac\uc9c8 \ubcf8\uccb4, 1\/2\u2033-28UNEF \ub098\uc0ac\uc0b0, \uc778\uc0b0\uad6c\ub9ac \ub2e8\uc790. \uc0dd\uc0b0, \ud14c\uc2a4\ud2b8 \ubc0f \uc11c\ube44\uc2a4 \ud328\ub110\uc758 \ud4e8\uc988\ub97c \ube60\ub974\uac8c \uad50\uccb4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2a4\ud06c\ub958 \ucea1 \ubc29\uc2dd\uc758 R3-11B\uc640 \ube44\uad50\ud574 \ubcf4\uc138\uc694.<\/p>","protected":false},"featured_media":31292,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[87],"product_tag":[],"class_list":["post-31291","product","type-product","status-publish","has-post-thumbnail","product_cat-panel-fuse-holder","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/gfevfuse.com\/ko\/wp-json\/wp\/v2\/product\/31291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gfevfuse.com\/ko\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/gfevfuse.com\/ko\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/gfevfuse.com\/ko\/wp-json\/wp\/v2\/comments?post=31291"}],"version-history":[{"count":2,"href":"https:\/\/gfevfuse.com\/ko\/wp-json\/wp\/v2\/product\/31291\/revisions"}],"predecessor-version":[{"id":32557,"href":"https:\/\/gfevfuse.com\/ko\/wp-json\/wp\/v2\/product\/31291\/revisions\/32557"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gfevfuse.com\/ko\/wp-json\/wp\/v2\/media\/31292"}],"wp:attachment":[{"href":"https:\/\/gfevfuse.com\/ko\/wp-json\/wp\/v2\/media?parent=31291"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/gfevfuse.com\/ko\/wp-json\/wp\/v2\/product_brand?post=31291"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/gfevfuse.com\/ko\/wp-json\/wp\/v2\/product_cat?post=31291"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/gfevfuse.com\/ko\/wp-json\/wp\/v2\/product_tag?post=31291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}