--- product_id: 133985529 title: "YWBL-WH SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220)" brand: "ywbl-wh" price: "€ 63.63" currency: EUR in_stock: true category: "Ywbl Wh" url: https://www.desertcart.gr/products/133985529-ywbl-wh-svr1000-single-phase-voltage-monitoring-sequence-relay-over store_origin: GR region: Greece --- # 12–600 V AC & 12–400 V DC universal detection Built-in LCD with real-time voltage & alerts Modular DIN rail mount, tool-free install YWBL-WH SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220) **Brand:** ywbl-wh **Price:** € 63.63 **Availability:** ✅ In Stock ## Summary > ⚡ Stay ahead of power faults with smart, seamless voltage protection! ## 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?** € 63.63 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/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 - • **Real-Time Visual Monitoring:** Clear LCD display delivers instant voltage readings and fault alerts in simplified Chinese, enhancing on-site diagnostics. - • **Robust Safety & Reliability:** IEC/EN 60947 certified with 6A copper alloy contacts ensures dependable over/under voltage protection in demanding industrial environments. - • **Universal Voltage Auto-Detection:** Seamlessly supports wide AC/DC voltage ranges (12–600 V AC, 12–400 V DC) with automatic detection—no manual switching needed. - • **Plug & Play Industrial Integration:** Modular rail-mount design fits standard 35mm DIN rails for rapid, hassle-free installation and upgrades. - • **Optimized for Multilingual Worksites:** Intuitive interface tailored for Chinese-speaking technicians, reducing errors and boosting operational efficiency. ## Overview The YWBL-WH SVR1000 is a cutting-edge single-phase voltage monitoring relay designed for industrial control panels. Featuring a modular DIN rail mount for quick installation, universal AC/DC voltage auto-detection (12–600 V AC, 12–400 V DC), and a built-in LCD display with real-time voltage and fault alerts in simplified Chinese, it ensures reliable over and under voltage protection. Certified to IEC/EN 60947 standards and equipped with durable copper alloy contacts rated for 6A, this relay is engineered to minimize downtime and maximize safety in HVAC, solar, and factory automation systems. ## Description YWBL-WH SVR1000 Single Phase Voltage Monitoring Sequence Relay Over Voltage Under Voltage Protection Relay (AD220): desertcart.com: Industrial & Scientific ## 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 | #223,937 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Phase Monitoring Relays | | Brand Name | YWBL-WH | | Coil Voltage | 90 volts | | Connector Type | Screw | | Contact Current Rating | 6 A | | Contact Material | Copper Alloy | | Contact Type | Normally Open | | Current Rating | 6 A | | Customer Reviews | 4.5 4.5 out of 5 stars (24) | | Included Components | inc | | Manufacturer | YWBL-WH | | Maximum Switching Current | 6 A | | Minimum Switching Voltage | 1 volts_of_direct_current | | Mounting Type | DIN Rail Mount | | Number of Items | 1 | | Number of Packs | 1 | | Number of Terminals | 2 | | Operation Mode | Automatic | | Part Number | shgbwqe94u-03 | | Specification Met | IEC/EN 60947 | | UPC | 703633820945 | | Unit Count | 1 Count | ## Product Details - **Connector Type:** Screw - **Contact Material:** Copper Alloy - **Contact Type:** Normally Open - **Current Rating:** 6 A - **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) ## 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 ## 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.gr/products/133985529-ywbl-wh-svr1000-single-phase-voltage-monitoring-sequence-relay-over](https://www.desertcart.gr/products/133985529-ywbl-wh-svr1000-single-phase-voltage-monitoring-sequence-relay-over) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-09-29*