{"product_id":"tomzn-adjustable-overvoltage-undercurrent-protector-relay-63a-110230v-v-i-kw-kwh-multi-function-display-water-level-control","title":"TOMZN Adjustable Overvoltage Undercurrent Protector Relay 63A 110230V V-I-kW-kWh Multi-Function Display | Water Level Control","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eActive time range\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e0.1-60s\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eTOMZN\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCertification\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eCE\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDelay off time range\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e1-512s\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDelay on time range\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e2-255s\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDoes it include a Battery?\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNo\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDoes it include wireless functionality?\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNo\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eEU LVD Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eHigh voltage: Above 50Vac or 75Vdc\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eIs Smart Device\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eno\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eDDS238-VAP-W\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOver current  protection  range\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e1-63A ( default 40A)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOvervoltage protection range\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e85-300V ( default 270V)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eRated frequency\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e50\/60Hz\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMini,Voltage relay\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eUnder voltage  protection  range\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e85-300V ( default 170V)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\u003cdiv\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-size:24px\"\u003e\u003cstrong\u003eProduct Introduction\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eThe DDS238-VAP is a single-phase two-wire AC active energy meter with integrated water pump protection functions. Designed for automatic pump control, it monitors overvoltage, overcurrent, and undercurrent conditions (note: undervoltage protection is not included). The device automatically cuts off the water pump when the water tower is full (current rises) or when the pipe runs dry (current drops), helping to reduce water waste and prevent pump motor overheating due to prolonged operation. It features a backlit LCD displaying total active energy (kWh), real-time current (A), voltage (V), and active power (W). Additional functions include built-in lightning protection, adjustable overvoltage and current limits, delay power-on, selectable auto or manual reclosing modes, programmable pump recycle time, and load disconnection on power failure. With high accuracy (Class 1 for energy), wide operating temperature range, and mechanical life of ≥100,000 cycles, the DDS238-VAP is a reliable solution for water pump management and energy measurement.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan style=\"font-size:24px\"\u003e\u003cstrong\u003eProduct Data Sheet\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eModel number: DDS238-VAP (Water pump protective device)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eType: Single-phase two-wire AC active energy meter with pump control\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eInput working voltage: 85-300V AC\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eRated frequency: 50\/60Hz\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eMaximum current: 63A\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eOvervoltage protection value: 85-300V (default: 270V)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eOvercurrent protection (current limit): 1-63A (default: 40A)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eUndercurrent protection: Yes (for dry pipe detection)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eUndervoltage protection: No\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eDelay switch-on after power-off: 2-255s (default: 2s)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eVoltage circuit power consumption: ≤1W\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eCurrent circuit power consumption: \u0026lt;1VA\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eActive energy display range: 0-9999.9 kWh\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eVoltage\/current\/active power accuracy: 0.50%\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eActive energy accuracy: ±1% (IEC62053-21)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eDisplay: LCD with backlight (kWh, A, V, W)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eProtection functions: Overvoltage, overcurrent, undercurrent, lightning protection\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003ePump control mode: Auto-reclosing or manual-reclosing selectable\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003ePump recycle working time: Programmable\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eIndicators: Overvoltage, upper\/lower current limit, power\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eLoad status on power failure: Disconnected\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eOperating temperature: -25°C to +70°C\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eStorage temperature: -40°C to +80°C\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eRelative humidity: ≤85%\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eAltitude: ≤2500m\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eElectromagnetic environment: E2\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size:18px\"\u003eMechanical life: ≥100,000 cycles\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1 style=\"margin:0cm 0cm 0pt;margin-bottom:0pt;margin-top:0cm;margin-left:0cm;margin-right:0cm\"\u003e\u003cimg style=\"width:1000px\" width=\"1000px\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Scda8869171ef425f9ac09c2e379a231eA.jpg\" slate-data-type=\"image\"\u003e\u003c\/h1\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cimg style=\"width:1000px\" width=\"1000px\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S9a93f8b1a41b4fc99ecce984414021f7X.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width:1000px\" width=\"1000px\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S18db8710e2c34e5791c912fd961fb0b3o.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width:1000px\" width=\"1000px\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sf3027526935e4eb5991132cf8444d95dA.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width:1000px\" width=\"1000px\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S6be64fa40581435ebf130c47fc30334bl.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width:1000px\" width=\"1000px\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S399187098b72438182e9dde6fe5c0e129.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width:1000px\" width=\"1000px\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S94c43daeb4d341a49bd7327b6b0a99aeY.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width:1000px\" width=\"1000px\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S744ff641c60c42b6988d929c4bce4bf6B.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width:1000px\" width=\"1000px\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sa3cdd5e402b84e87955401a8b804f9116.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width:1000px\" width=\"1000px\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S3106d337bb004587bffce0d053443172t.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"width:1000px\" width=\"1000px\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S597f4e14e43342968b94d186f14f9265Q.jpg\" 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