--- product_id: 133985529 title: "YWBL-WH SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220)" brand: "ywbl-wh" price: "37717CFA" currency: XOF in_stock: true reviews_count: 6 category: "Ywbl Wh" url: https://www.desertcart.sn/products/133985529-ywbl-wh-svr1000-single-phase-voltage-monitoring-sequence-relay-over store_origin: SN region: Senegal --- # 6A max switching current Built-in LCD for real-time monitoring Auto AC/DC voltage detection YWBL-WH SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220) **Brand:** ywbl-wh **Price:** 37717CFA **Availability:** ✅ In Stock ## Summary > ⚡ Stay ahead of power dips and spikes—protect your energy flow like a pro! ## Quick Answers - **What is this?** YWBL-WH SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220) by ywbl-wh - **How much does it cost?** 37717CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/133985529-ywbl-wh-svr1000-single-phase-voltage-monitoring-sequence-relay-over) ## Best For - ywbl-wh enthusiasts ## Why This Product - Trusted ywbl-wh brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Protection:** Real-time single-phase over/under voltage monitoring safeguards your critical systems effortlessly. - • **Modular DIN Rail Design:** Standardized modular build for quick, clean rail-type installation—upgrade your setup in minutes. - • **Self-Powered Reliability:** Operates without auxiliary power—cut complexity, boost efficiency, and reduce maintenance. - • **Smart Hysteresis Control:** Customizable voltage hysteresis prevents relay chatter, delivering stable, reliable switching. - • **Seamless Voltage Vigilance:** Automatically detects AC/DC voltage—no manual switching needed, ensuring zero downtime. ## Overview The YWBL-WH SVR1000 is a cutting-edge single-phase voltage monitoring relay designed for industrial and solar applications. Featuring automatic AC/DC voltage detection, a clear LCD display for real-time voltage and fault status, and dual independent relays, it offers precise over-voltage and under-voltage protection. Its modular DIN rail design and self-powered operation make it an essential, hassle-free safeguard for your power systems. ## Description YWBL-WH How do we start Our shop is committed to providing high-quality industrial products to global buyers. Let customers buy high-quality products and improve the quality of work is our pursuit. So we created YWBL-WH. What makes our products unique We work very hard to understand the tools people need in industry, DIY and home repair, and provide excellent products to make people's work better. Why we love our work Because we can provide customers with high-quality products, we are sincerely happy when customers praise our products and say that they have solved their problems. How do we start Our shop is committed to providing high-quality industrial products to global buyers. Let customers buy high-quality products and improve the quality of work is our pursuit. So we created YWBL-WH. What makes our products unique We work very hard to understand the tools people need in industry, DIY and home repair, and provide excellent products to make people's work better. Why we love our work Because we can provide customers with high-quality products, we are sincerely happy when customers praise our products and say that they have solved their problems. YWBL-WH is a registered brand of industrial products. We insist on "providing the best quality products and the most intimate service" as our brand concept. We strive for perfection in every process of producing products, and we have been listening to our customers. From the drill bit to the ground clamp, from the converter to the relay, from the motor to the circuit breaker, we are always on the way to find quality products for you. Hot Product Review: Very good product - Using it to monitor electric utility company low or high voltage to my house. If it is out of the ranges I programed into it, it will start my generator. The generator will run until the utility company electric power is back to normal voltage levels. Very easy wiring and setup. Review: Excelente - muy buena inversión puedes controlar la alimentación de la casa y evitar que se quemen los equipos electrónicos ## Features - Modular Design: Rail-mount modular structure enables quick installation in industrial control panels and DIN rail enclosures without custom brackets or tools. Standardized footprint fits common 35 mm DIN rails. Simplifies system integration and field upgrades across automation environments. Reduces wiring complexity and service downtime during deployment. - Universal Voltage Detection: AC/DC voltage auto-detection eliminates manual range switching before testing live circuits. Supports 12–600 V AC and 12–400 V DC input ranges. Prevents misconfiguration errors during maintenance on mixed-power systems. Enhances technician safety and measurement reliability in HVAC, solar, and factory settings. - Comprehensive Display: Built-in LCD shows real-time voltage values, fault alerts, and configuration menus in simplified Chinese characters. Screen resolution supports clear visibility at 12-inch viewing distance. Enables intuitive operation without external devices or translation apps. Improves usability for Chinese-speaking technicians in regional manufacturing sites. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07PZD9WSL | | Best Sellers Rank | #123,203 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Phase Monitoring Relays | | Brand | YWBL-WH | | Brand Name | YWBL-WH | | Coil Voltage | 90 Volts | | Connector Type | Screw | | Contact Current Rating | 6 Amps | | Contact Material | Copper Alloy | | Contact Type | Normally Open | | Current Rating | 6 Amps | | Customer Reviews | 4.5 out of 5 stars 23 Reviews | | Included Components | inc | | Manufacturer | YWBL-WH | | Maximum Switching Current | 6 Amps | | Minimum Switching Voltage | 1 Volts (DC) | | Mounting Type | DIN Rail Mount | | Number of Terminals | 2 | | Operation Mode | Automatic | | Part Number | shgbwqe94u-03 | | Specification Met | IEC/EN 60947 | | UPC | 703633820945 | | Unit Count | 1.0 Count | ## Product Details - **Connector Type:** Screw - **Contact Material:** Copper Alloy - **Contact Type:** Normally Open - **Current Rating:** 6 Amps - **Mounting Type:** DIN Rail Mount ## Images ![YWBL-WH SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220) - Image 1](https://m.media-amazon.com/images/I/615CgIcHFQL.jpg) ![YWBL-WH SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220) - Image 2](https://m.media-amazon.com/images/I/61CrMSQQCeL.jpg) ![YWBL-WH SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220) - Image 3](https://m.media-amazon.com/images/I/61EOg4eLteL.jpg) ![YWBL-WH SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220) - Image 4](https://m.media-amazon.com/images/I/61q2nuag2ML.jpg) ![YWBL-WH SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220) - Image 5](https://m.media-amazon.com/images/I/61axE5kzj-L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: will this work for a car cooler to prevent battery drain and if so can I set the shut off at 13 volts?** A: Short answer is no. Min voltage is 17v so no it would not. However if you took say another 12v battery and wired it in series for 24 v but only use the other battery for emergency's you could use the 24v and set the cutoff at 22v and have the relay open in that instance it would kinda work but you would have to have a contactor for the battery connection because of the amperage of the starter. **Q: Is there a link for the MAnual/directions for Ad48?** A: It comes with a little piece of paper that explains the setup. It is a some device that is configured to activate a form "C" relay based upon a low and high voltage. Example: if the low is set to 48vdc and the high to 50vdc, the relay can be wired to be closed or open between those two voltages. **Q: Are the input and output contacts isolated? i want to bring in my battery voltage (48v dc) and if it gets low cut the 240v ac on the output contacts.** A: Yes the contacts are isolated from the input **Q: Can this is connected to a 120/240 volts power supply?** A: Yes. It can connect to 120v. Dc or Ac ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very good product *by D***7 on August 1, 2024* Using it to monitor electric utility company low or high voltage to my house. If it is out of the ranges I programed into it, it will start my generator. The generator will run until the utility company electric power is back to normal voltage levels. Very easy wiring and setup. ### ⭐⭐⭐⭐⭐ Excelente *by Y***Z on May 11, 2023* muy buena inversión puedes controlar la alimentación de la casa y evitar que se quemen los equipos electrónicos ### ⭐⭐⭐⭐⭐ Muy buen dispositivo *by C***G on December 23, 2023* Muy interesante y facil de configurar ## Frequently Bought Together - YWBL-WH SVR1000 Single Phase Voltage Monitoring Sequence Relay Over-Voltage 50V-300V Under-Voltage 1V-90V AC/DC(AD220) - VAMRONE 10 Piece Aluminum DIN Rails, 12 Inches Long, 35mm Wide, 7.5mm High, Top Hat Slotted DIN Rail with RoHS, Extra Premium Screws Included for Hardware Components Mounting - TWTADE/JQX-62F-2Z Coil Voltage AC 110V 80A DPDT Electronmagnetic Relay,High Power Relay AC 110V --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/133985529-ywbl-wh-svr1000-single-phase-voltage-monitoring-sequence-relay-over](https://www.desertcart.sn/products/133985529-ywbl-wh-svr1000-single-phase-voltage-monitoring-sequence-relay-over) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-06-05*