{"product_id":"220v-voltage-relay-protector-kwh-energy-meter-40a-63a","title":"220V 40A\/63A Voltage Relay Protector \u0026 KWH Energy Meter","description":"\n\u003ch2\u003e220V 40A\/63A Adjustable Voltage Relay Protector with KWH Energy Meter \u0026amp; Power Display\u003c\/h2\u003e\n\n\u003cp\u003eKeep your electrical appliances and circuits safe with this versatile \u003cstrong\u003e220V Adjustable Voltage Relay Protector\u003c\/strong\u003e. Designed for single-phase AC systems, it combines over-voltage, under-voltage, and over-current protection with a built-in wattmeter and kilowatt-hour (KWH) energy meter — all in one compact DIN rail-mountable unit. Whether you're protecting home appliances, workshop equipment, or industrial machinery, this all-in-one protector monitors and safeguards your electrical setup automatically.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOver-Voltage Protection:\u003c\/strong\u003e Automatically trips when voltage exceeds your set threshold (230–300V), disconnecting the load to prevent damage.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnder-Voltage Protection:\u003c\/strong\u003e Trips when voltage drops below your configured minimum (140–210V), shielding sensitive devices.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOver-Current Protection:\u003c\/strong\u003e Adjustable current limit from 1A to 40A or 63A (model-dependent); disconnects automatically when exceeded.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutomatic Recovery:\u003c\/strong\u003e Reconnects automatically after voltage\/current returns to safe levels, with a programmable reset delay (1–600 seconds).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReal-Time Voltage \u0026amp; Current Display:\u003c\/strong\u003e Clear digital readout of live voltage and current measurements for at-a-glance monitoring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated KWH Energy Meter \/ Wattmeter:\u003c\/strong\u003e Tracks power consumption in real time — ideal for managing energy usage and costs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIN Rail Installation:\u003c\/strong\u003e Standard 35mm DIN rail mount for quick, clean installation in electrical panels and enclosures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Voltage Range:\u003c\/strong\u003e Functions across AC 80–400V, making it compatible with a broad range of single-phase electrical systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eRated Supply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eAC 220V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eAC 80–400V (Single Phase)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eRated Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e40A or 63A (see product label)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOver-Current Setting Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1–40A \/ 63A or OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOver-Voltage Setting Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e230–300V or OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eUnder-Voltage Setting Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e140–210V or OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eKWH Protection Value\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1–9999 or OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eTrip Delay Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e0.5 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eReset \/ Start Delay Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1–600 seconds (programmable)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eVoltage Measurement Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eRated Insulation Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e400V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOutput Contact\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1 NO (Normally Open)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eElectrical Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e100,000 operations\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eMechanical Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1,000,000 operations\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e35mm DIN Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Over\/Under Voltage Relay Protector with KWH Energy Meter Display\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSafety Notice\u003c\/h3\u003e\n\u003cp\u003eThis device operates with high-voltage AC circuits. Installation should be performed by a qualified electrician in compliance with local electrical codes. For guidance on electrical safety standards, refer to the \u003ca href=\"https:\/\/www.osha.gov\/electrical\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOSHA Electrical Safety guidelines\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Due to lighting and monitor differences, the product color may vary slightly from images. Please allow 1mm–1cm tolerance due to manual measurement.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between the 40A and 63A versions of this voltage relay protector?\u003c\/h4\u003e\n\u003cp\u003eA: Both versions share the same features and adjustable settings, but differ in maximum rated current capacity. The 40A model is suited for standard household circuits and smaller appliances, while the 63A model handles heavier loads such as large industrial equipment or high-draw machinery. Check the product label on your unit to confirm the rated current.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I set the protector to only monitor energy consumption without enabling the voltage\/current protection?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. Each protection function — over-voltage, under-voltage, over-current, and KWH limit — can be individually set to \"OFF,\" allowing you to use the device purely as a wattmeter and KWH energy meter display without triggering any automatic disconnection.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How does the automatic recovery feature work?\u003c\/h4\u003e\n\u003cp\u003eA: When a fault condition (over-voltage, under-voltage, or over-current) is detected, the relay trips and disconnects the load after a 0.5-second delay. Once the voltage or current returns to within safe levels, the device waits for the user-programmed reset delay (1 to 600 seconds) before automatically reconnecting power, protecting your equipment from repeated voltage fluctuations.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this relay protector compatible with both 50Hz and 60Hz electrical systems?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, this unit supports both 50Hz and 60Hz rated frequencies, making it compatible with electrical systems in a wide range of countries and regions.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between the 40A and 63A versions of this voltage relay protector?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Both versions share the same features and adjustable settings, but differ in maximum rated current capacity. The 40A model is suited for standard household circuits and smaller appliances, while the 63A model handles heavier loads such as large industrial equipment or high-draw machinery. Check the product label on your unit to confirm the rated current.\"}}, {\"@type\": \"Question\", \"name\": \"Can I set the protector to only monitor energy consumption without enabling the voltage\/current protection?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Each protection function — over-voltage, under-voltage, over-current, and KWH limit — can be individually set to \\\"OFF,\\\" allowing you to use the device purely as a wattmeter and KWH energy meter display without triggering any automatic disconnection.\"}}, {\"@type\": \"Question\", \"name\": \"How does the automatic recovery feature work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"When a fault condition (over-voltage, under-voltage, or over-current) is detected, the relay trips and disconnects the load after a 0.5-second delay. Once the voltage or current returns to within safe levels, the device waits for the user-programmed reset delay (1 to 600 seconds) before automatically reconnecting power, protecting your equipment from repeated voltage fluctuations.\"}}, {\"@type\": \"Question\", \"name\": \"Is this relay protector compatible with both 50Hz and 60Hz electrical systems?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, this unit supports both 50Hz and 60Hz rated frequencies, making it compatible with electrical systems in a wide range of countries and regions.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Fasteners \u0026 Electrical\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/collections\/fasteners-electrical\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"220V 40A\/63A Voltage Relay Protector \u0026 KWH Energy Meter\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/products\/220v-voltage-relay-protector-kwh-energy-meter-40a-63a\"}]}\u003c\/script\u003e","brand":"Vue","offers":[{"title":"40A","offer_id":48749785252032,"sku":"567:200002043","price":60.99,"currency_code":"USD","in_stock":true},{"title":"63A","offer_id":48749785284800,"sku":"567:203122981","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9338\/7968\/files\/Scb4131a09b714fe7ae6e0b338887318bX.webp?v=1786208771","url":"https:\/\/vueselect.com\/products\/220v-voltage-relay-protector-kwh-energy-meter-40a-63a","provider":"Vue","version":"1.0","type":"link"}