--- product_id: 462095291 title: "YWBL-WH TG30S 220-440V AC 3-Phase Sequence Relay Protector Voltage Phase Protective Relay" brand: "ywbl-wh" price: "€ 93.55" currency: EUR in_stock: false reviews_count: 1 category: "Ywbl Wh" url: https://www.desertcart.gr/products/462095291-ywbl-wh-tg30s-220-440v-ac-3-phase-sequence-relay store_origin: GR region: Greece --- # 220-440V AC 3-phase voltage range Red/yellow/green LED status indicators 1-2 sec delay protection YWBL-WH TG30S 220-440V AC 3-Phase Sequence Relay Protector Voltage Phase Protective Relay **Brand:** ywbl-wh **Price:** € 93.55 **Availability:** ❌ Out of Stock ## Summary > ⚡ Stay ahead of power faults with instant, smart phase protection! ## Quick Answers - **What is this?** YWBL-WH TG30S 220-440V AC 3-Phase Sequence Relay Protector Voltage Phase Protective Relay by ywbl-wh - **How much does it cost?** € 93.55 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/462095291-ywbl-wh-tg30s-220-440v-ac-3-phase-sequence-relay) ## 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 - • **Plug & Protect:** No motor wiring needed—easy integration with your existing 3-phase equipment for hassle-free setup. - • **Triple-Phase Mastery:** Seamlessly protects against phase loss, imbalance, and wrong sequence to keep your systems flawless. - • **Certified Reliability:** Built to meet IEC and GB standards, guaranteeing industrial-grade safety and performance. - • **Instant Fault Detection:** Immediate yellow/red LED alerts ensure you never miss a critical phase error or voltage imbalance. - • **Energy-Efficient Guardian:** Consumes less than 2W while delivering robust, long-term protection under any climate. ## Overview The YWBL-WH TG30S is a compact, energy-efficient 3-phase sequence relay protector designed for 220-440V AC systems. It offers dynamic and static phase loss protection, voltage imbalance detection, and wrong phase sequence prevention with clear LED indicators. Certified to IEC and GB standards, it ensures reliable, instant fault detection and delayed relay action for safe, long-term operation without complex wiring. ## Description Specification: Model: TG30S Voltage: 220-440V AC Meet the standard: GB/T 14048.1-2000, GB14048.5-2001 eqv IEC60947-1:199 Package list: 1 * Phase Sequence Protector Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product. Working status: 1. L1, L2, L3 three-phase wiring is correct, the monitor green light is on, the relay is closed; if the phase sequence is wrong, the monitor yellow light is on, just exchange any two phases of L1, L2, L3 three phases, the monitor will Can recognize the phase sequence and work normally. When the protected device is working normally, the yellow light is on, and when the relay does not pick up, it should be regarded as misconnection of the external line phase sequence, and the monitor has the function of preventing misconnection protection; 2. When the L1, L2, and L3 phases are out of phase, the red light is on, the green light is off, and the relay is released; when the voltage is normal, the green light is on and the relay is closed; 3. L1, L2, L3 are connected to three-phase AC voltage, NO and COM are normally open contacts; NC and COM are normally closed contacts. Use wire to connect the terminal block directly. Review: Lo instale para proteger un equipo VRF y funciona a la perfección ## Features - Dynamic phase loss, static phase loss protection: refers to the phase failure of any phase when the protected device is in the running state or non-operating state. The indicator light is in the form of red light and priority.There is no requirement for motor wiring when used for motor protection. - Wrong phase protection: A protection measure to prevent the phase sequence of L1, L2, L3 three-phase AC power supply from being connected incorrectly. Instant action. The indicator light is in the form of yellow light.This product complies with GB/T 14048.1-2000, GB14048.5-2001 eqv IEC60947-1:1999. - Voltage Unbalance Protection: Refers to a voltage imbalance that will affect the safe operation of the device. When the voltage imbalance rate is higher than 8%. The form of the indicator light is: the lack of phase red light is on, and priority.Three-phase voltage imbalance protection, static phase loss protection, reverse phase protection, lightning protection, and surge resistance. - Delay protection: When there is a fault, the monitor will delay after 1~2 seconds, and the relay will release. - The protection function of the monitor is not affected by the current of the line or load, the inrush current, the unbalanced current and the nature of the load. Long-term work with full performance and full climate. Power consumption is no more than 2W. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07SDGQ4ZN | | ASIN | B07SDGQ4ZN | | Batteries Included? | No | | Batteries Required? | No | | Customer Reviews | 4.2 4.2 out of 5 stars (7) | | Customer reviews | 4.2 4.2 out of 5 stars (7) | | Date First Available | 26 October 2021 | | Date First Available | 26 October 2021 | | Finish | Finish | | Included components | inc | | Installation Method | InstallationMethod | | Item Package Quantity | 1 | | Item Weight | 96 g | | Item model number | YWBL-WH2tohe4gc9g | | Item model number | YWBL-WH2tohe4gc9g | | Manufacturer | YWBL-WH | | Manufacturer | YWBL-WH | | Material | Material | | Part number | YWBL-WH2tohe4gc9g | | Power source type | PowerSource | | Product Dimensions | 5 x 5 x 2 cm; 96 g | | Product Dimensions | 5 x 5 x 2 cm; 96 g | | Wattage | 2 watts | ## Images ![YWBL-WH TG30S 220-440V AC 3-Phase Sequence Relay Protector Voltage Phase Protective Relay - Image 1](https://m.media-amazon.com/images/I/51xEo8sos7L.jpg) ![YWBL-WH TG30S 220-440V AC 3-Phase Sequence Relay Protector Voltage Phase Protective Relay - Image 2](https://m.media-amazon.com/images/I/61L8PE00XVL.jpg) ![YWBL-WH TG30S 220-440V AC 3-Phase Sequence Relay Protector Voltage Phase Protective Relay - Image 3](https://m.media-amazon.com/images/I/61Yq7uEY1xL.jpg) ![YWBL-WH TG30S 220-440V AC 3-Phase Sequence Relay Protector Voltage Phase Protective Relay - Image 4](https://m.media-amazon.com/images/I/61LQnSllJSL.jpg) ![YWBL-WH TG30S 220-440V AC 3-Phase Sequence Relay Protector Voltage Phase Protective Relay - Image 5](https://m.media-amazon.com/images/I/51HJSbOpLXL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by C***A on 16 April 2023* Lo instale para proteger un equipo VRF y funciona a la perfección ## Frequently Bought Together - TG30S 220-440V AC 3-Phase Sequence Relay Protector Voltage Phase Protective Relay - Taiss Momentary Push Button Switch Station Box Start/Stop Red Green Sign NO NC Pushbutton Switches Station AC 660V 10A HB2-Start/Stop-Box - Compact Raspberry Pi Zero Protective Case (Red) --- ## 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/462095291-ywbl-wh-tg30s-220-440v-ac-3-phase-sequence-relay](https://www.desertcart.gr/products/462095291-ywbl-wh-tg30s-220-440v-ac-3-phase-sequence-relay) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-05-11*