{"id":7899,"date":"2026-09-01T09:08:59","date_gmt":"2026-09-01T09:08:59","guid":{"rendered":"https:\/\/potensilift.com\/?post_type=product&p=7899"},"modified":"2026-09-01T09:09:00","modified_gmt":"2026-09-01T09:09:00","slug":"three-phase-power-protection-relay-fd-rb03a","status":"publish","type":"product","link":"https:\/\/potensilift.com\/ru\/%d0%bf%d1%80%d0%be%d0%b4%d1%83%d0%ba%d1%82\/three-phase-power-protection-relay-fd-rb03a\/","title":{"rendered":"Three-Phase Power Protection Relay FD-RB03A"},"content":{"rendered":"

Product Information Table<\/h2>\n
\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Feature<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Model Number<\/strong><\/td>\nFD-RB03A<\/td>\n<\/tr>\n
Product Type<\/strong><\/td>\nThree-Phase Power Protection Relay<\/td>\n<\/tr>\n
Brand<\/strong><\/td>\nChangshu Feida Electronics Factory<\/td>\n<\/tr>\n
Rated Voltage<\/strong><\/td>\n380 VAC<\/td>\n<\/tr>\n
Frequency<\/strong><\/td>\n50\/60 Hz<\/td>\n<\/tr>\n
Contact Capacity<\/strong><\/td>\nAC250V \/ 3A<\/td>\n<\/tr>\n
Power Terminals<\/strong><\/td>\nL1, L2, L3<\/td>\n<\/tr>\n
Relay Terminals<\/strong><\/td>\n11, 12, 14<\/td>\n<\/tr>\n
Application<\/strong><\/td>\nElevator and Motor Control Systems<\/td>\n<\/tr>\n
Installation<\/strong><\/td>\nElectrical Control Cabinet<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
\n

Related & Alternative Models<\/h2>\n

We can also supply similar three-phase power protection relays and elevator electrical control components.<\/p>\n

Since compatibility depends on the rated voltage, frequency, terminal arrangement, contact capacity, and protection function, no unverified alternative model numbers are listed here. Please send us a photo of the original relay label and wiring if you need help confirming a similar model.<\/p>\n

\n

Why Choose Potensi?<\/h2>\n
    \n
  • 99% Market Coverage:<\/strong>\u00a0We can supply nearly 99% of elevator spare parts on the market.<\/li>\n
  • Genuine Quality Assurance:<\/strong>\u00a0We provide genuine and reliable elevator components.<\/li>\n
  • Expert Identification Support:<\/strong>\u00a0Send us the model number or product photos, and we can help confirm the correct part.<\/li>\n
  • Global Shipping:<\/strong>\u00a0We support fast and reliable international delivery for elevator maintenance projects.<\/li>\n<\/ul>\n
    \n

    FAQ<\/h2>\n

    Q1: What is the function of the FD-RB03A relay?<\/strong>
    \nA:<\/strong>\u00a0The FD-RB03A monitors a three-phase power supply and uses relay contacts to provide protection and control signals for compatible elevator or motor control systems.<\/p>\n

    Q2: What is the rated voltage of this relay?<\/strong>
    \nA:<\/strong>\u00a0The product label indicates a rated voltage of 380 VAC at 50\/60 Hz.<\/p>\n

    Q3: What is the contact capacity?<\/strong>
    \nA:<\/strong>\u00a0The label indicates a contact capacity of AC250V \/ 3A.<\/p>\n

    Q4: What do the terminals L1, L2, and L3 represent?<\/strong>
    \nA:<\/strong>\u00a0L1, L2, and L3 are the three-phase power input terminals. Terminals 11, 12, and 14 are the relay contact terminals shown on the product label.<\/p>\n

    Q5: Can you help confirm the correct model if I am not sure?<\/strong>
    \nA:<\/strong>\u00a0Yes. Please send clear photos of the original relay, product label, wiring, terminals, and installation position. Our technical team can help identify the correct model.<\/p>\n

    Q6: Do you supply other elevator electrical components?<\/strong>
    \nA:<\/strong>\u00a0Yes. We supply power protection relays, contactors, relays, PCBs, sensors, switches, and other elevator spare parts.<\/p>\n","protected":false},"excerpt":{"rendered":"

    The FD-RB03A is a three-phase power protection relay for elevator and motor control systems. It monitors a 380 VAC three-phase power supply and provides relay contacts for control circuit protection. The unit is suitable for compatible electrical control cabinets and motor applications.<\/p>","protected":false},"featured_media":7902,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_titles_title":"Three-Phase Power Protection Relay FD-RB03A","_seopress_titles_desc":"FD-RB03A three-phase power protection relay rated at 380 VAC, 50\/60 Hz, with AC250V\/3A relay contacts for elevator and motor control systems.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":""},"product_brand":[],"product_cat":[109,150,229],"product_tag":[],"class_list":{"0":"post-7899","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-others-elevator-parts","7":"product_cat-others-brands-parts","8":"product_cat-power-supply","10":"first","11":"instock","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/potensilift.com\/ru\/wp-json\/wp\/v2\/product\/7899"}],"collection":[{"href":"https:\/\/potensilift.com\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/potensilift.com\/ru\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/potensilift.com\/ru\/wp-json\/wp\/v2\/comments?post=7899"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/potensilift.com\/ru\/wp-json\/wp\/v2\/media\/7902"}],"wp:attachment":[{"href":"https:\/\/potensilift.com\/ru\/wp-json\/wp\/v2\/media?parent=7899"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/potensilift.com\/ru\/wp-json\/wp\/v2\/product_brand?post=7899"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/potensilift.com\/ru\/wp-json\/wp\/v2\/product_cat?post=7899"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/potensilift.com\/ru\/wp-json\/wp\/v2\/product_tag?post=7899"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}