{"id":1564,"date":"2025-09-16T05:27:17","date_gmt":"2025-09-16T05:27:17","guid":{"rendered":"https:\/\/cnkuangya.com\/?post_type=product&p=1564"},"modified":"2025-09-22T09:02:43","modified_gmt":"2025-09-22T09:02:43","slug":"rccb-type-b-vfl002b","status":"publish","type":"product","link":"https:\/\/cnkuangya.com\/ar\/product\/rccb-type-b-vfl002b\/","title":{"rendered":"RCCB VFL002B - \u0642\u0627\u0637\u0639 \u062f\u0627\u0631\u0629 \u0627\u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u062a\u0628\u0642\u064a (\u0627\u0644\u0646\u0648\u0639 B\/B+)"},"content":{"rendered":"
\n

\u0644\u0645\u062d\u0629 \u0639\u0627\u0645\u0629<\/h2>\n

The Kuangya VFL002B is an RCCB \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0628<\/strong> designed for installations where smooth DC and mixed-frequency leakage can occur. Typical applications include EV charging points, PV inverters, UPS systems, drives with frequency converters, medical imaging (X-ray\/CT), test benches, cranes, elevators, and variable-speed machinery. The B version covers AC + pulsating DC + smooth DC; the B+ variant extends the frequency response up to 20 kHz for modern power-electronics environments.<\/p>\n

Detection & operation<\/h2>\n
    \n
  • \u0627\u0644\u0646\u0648\u0639 \u0628<\/strong> \u2014 sensitive to sinusoidal AC, pulsating DC, and smooth DC residual currents.<\/li>\n
  • \u0627\u0644\u0646\u0648\u0639 B+<\/strong> \u2014 all B functions plus extended high-frequency behavior up to 20 kHz.<\/li>\n
  • Electronics<\/strong> \u2014 B\/B+ functions are voltage-dependent with electronic control; A-class behavior is voltage-independent.<\/li>\n<\/ul>\n

    \u0627\u0644\u0645\u064a\u0632\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n
      \n
    • Poles:<\/strong> 2P \/ 4P; In:<\/strong> 16, 25, 32, 40, 63, 80, 100 A.<\/li>\n
    • I\u0394n (instantaneous):<\/strong> 30 \/ 100 \/ 300 \/ 500 mA.<\/li>\n
    • Ue (Un):<\/strong> 2P: 230\/240 V AC; 4P: 400\/415 V AC; fn:<\/strong> 50\/60 Hz.<\/li>\n
    • Electronic supply:<\/strong> 50\u2013264 V AC; test-circuit voltage range:<\/strong> 2P 184\u2013264 V AC; 4P 184\u2013440 V AC.<\/li>\n
    • Ui:<\/strong> 500 V; Uimp:<\/strong> 4 kV (1.2\/50 \u03bcs).<\/li>\n
    • Inc (conditional short-circuit):<\/strong> 10 kA; Im (making\/breaking):<\/strong> 1500 A.<\/li>\n
    • Surge withstand:<\/strong> 3 kA (8\/20 \u03bcs); Selective S<\/strong> type withstands 5 kA.<\/li>\n
    • High-frequency behavior:<\/strong> up to 1 kHz (B) \/ up to 20 kHz (B+).<\/li>\n
    • Endurance (ops):<\/strong> \u2265 2000 electrical \/ \u2265 4000 mechanical.<\/li>\n
    • Terminals:<\/strong> open-mounted \/ lift type; cable and pin-type busbar; terminal protection IP20.<\/li>\n
    • Environment:<\/strong> \u221225 \u00b0C\u2026+55 \u00b0C (daily avg \u2264 35 \u00b0C); storage \u221240 \u00b0C\u2026+70 \u00b0C.<\/li>\n
    • \u0627\u0644\u062a\u0631\u0643\u064a\u0628:<\/strong> 35 mm DIN rail (EN 60715), fast clip; top or bottom supply; any mounting position.<\/li>\n
    • Standards\/Approvals:<\/strong> IEC\/EN 61008-1, OVE E8601; UKCA, CE.<\/li>\n<\/ul>\n

      \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0641\u0646\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      \u0642\u064a\u0627\u0633\u064a<\/th>\nIEC\/EN 61008-1; OVE E8601<\/th>\n<\/tr>\n
      \u0627\u0644\u0637\u0631\u0627\u0632<\/td>\nVFL002B (Type B); VFL002B+ (Type B+)<\/td>\n<\/tr>\n
      \u0627\u0644\u0623\u0639\u0645\u062f\u0629<\/td>\n2P, 4P<\/td>\n<\/tr>\n
      Rated voltage Ue (Un)<\/td>\n2P: 230\/240 V AC; 4P: 400\/415 V AC<\/td>\n<\/tr>\n
      Rated frequency fn<\/td>\n50\/60 \u0647\u0631\u062a\u0632<\/td>\n<\/tr>\n
      Electronic operation voltage<\/td>\n50\u2013264 V AC<\/td>\n<\/tr>\n
      Voltage range (test circuit)<\/td>\n2P: 184\u2013264 V AC; 4P: 184\u2013440 V AC<\/td>\n<\/tr>\n
      Rated current In<\/td>\n16, 25, 32, 40, 63, 80, 100 A<\/td>\n<\/tr>\n
      Rated sensitivity I\u0394n<\/td>\n30 \/ 100 \/ 300 \/ 500 mA (instantaneous)<\/td>\n<\/tr>\n
      Insulation voltage Ui<\/td>\n500 V<\/td>\n<\/tr>\n
      Impulse withstand Uimp<\/td>\n4 \u0643\u064a\u0644\u0648 \u0641\u0648\u0644\u062a<\/td>\n<\/tr>\n
      Conditional short-circuit Inc<\/td>\n10 kA<\/td>\n<\/tr>\n
      Making\/breaking capacity Im<\/td>\n1500 A<\/td>\n<\/tr>\n
      Surge withstand<\/td>\n3 kA (8\/20 \u03bcs); 5 kA (Selective S type)<\/td>\n<\/tr>\n
      High-frequency behavior<\/td>\nB: up to 1 kHz; B+: up to 20 kHz<\/td>\n<\/tr>\n
      Electrical isolation<\/td>\n> 4 mm contact gap<\/td>\n<\/tr>\n
      Back-up fuse (ref.)<\/td>\ngG\/gL 100 A<\/td>\n<\/tr>\n
      \u0627\u0644\u0642\u062f\u0631\u0629 \u0639\u0644\u0649 \u0627\u0644\u062a\u062d\u0645\u0644<\/td>\n\u2265 2000 electrical; \u2265 4000 mechanical operations<\/td>\n<\/tr>\n
      Terminal capacity<\/td>\n1\u201325 mm\u00b2 (cable); busbar 0.8\u20132 mm<\/td>\n<\/tr>\n
      Terminal torque<\/td>\n2\u20132.5 N\u00b7m<\/td>\n<\/tr>\n
      Protection degree<\/td>\nIP20 (terminals)<\/td>\n<\/tr>\n
      Operating temperature<\/td>\n\u221225 \u00b0C\u2026+55 \u00b0C (avg \u2264 35 \u00b0C)<\/td>\n<\/tr>\n
      Storage temperature<\/td>\n\u221240 \u00b0C\u2026+70 \u00b0C<\/td>\n<\/tr>\n
      \u0627\u0644\u062a\u0631\u0643\u064a\u0628<\/td>\nDIN rail EN 60715 (35 mm); any position<\/td>\n<\/tr>\n
      Connection<\/td>\nTop or bottom<\/td>\n<\/tr>\n
      Approvals<\/td>\nUKCA, CE<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
        \n
      • EV charging points and wallboxes requiring RCCB \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0628<\/strong> sensitivity to smooth DC leakage.<\/li>\n
      • PV\/UPS\/inverter-driven systems, test benches, and medical imaging equipment.<\/li>\n
      • Industrial machinery with variable-speed drives and rectifiers.<\/li>\n<\/ul>\n

        \u0627\u0644\u0634\u0647\u0627\u062f\u0627\u062a<\/h2>\n

        Conforms to IEC\/EN 61008-1 and OVE E8601; approved UKCA and CE.<\/p>\n

        \u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/h2>\n
        \nWhen to choose B vs. B+?<\/summary>\n

        Select B+ when the installation contains significant high-frequency components (up to 20 kHz); otherwise B is sufficient for AC, pulsating DC, and smooth DC leakage.<\/p>\n<\/details>\n

        \nHow to coordinate the conditional short-circuit rating?<\/summary>\n

        Use an upstream SCPD so the installation respects Inc = 10 kA under fault conditions.<\/p>\n<\/details>\n

        \"rccb<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

          \n
        • \n

          RCCB \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0628<\/strong> for AC, pulsating DC, and smooth DC residual currents; B+ variant adds extended high-frequency response.<\/p>\n<\/li>\n

        • \n

          2P\/4P, 16\u2013100 A; I\u0394n 30\/100\/300\/500 mA; Ue 230\/240 V (2P), 400\/415 V (4P).<\/p>\n<\/li>\n

        • \n

          Inc 10 kA; Im 1500 A; Uimp 4 kV; surge withstand 3 kA (8\/20 \u03bcs) \/ 5 kA for S type; IEC\/EN 61008-1, OVE E8601; UKCA\/CE.<\/p>\n<\/li>\n<\/ul>","protected":false},"featured_media":1799,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[34],"product_tag":[],"class_list":{"0":"post-1564","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-rccb","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/product\/1564","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/comments?post=1564"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/media\/1799"}],"wp:attachment":[{"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/media?parent=1564"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/product_brand?post=1564"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/product_cat?post=1564"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/cnkuangya.com\/ar\/wp-json\/wp\/v2\/product_tag?post=1564"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}