--- product_id: 395899557 title: "GIC MD21DF Voltage Monitoring Relay SM 175 208-480 VAC 3 Phase 5Amps" brand: "gic" price: "18.56 DT" currency: TND in_stock: false reviews_count: 1 url: https://www.desertcart.tn/products/395899557-gic-md21df-voltage-monitoring-relay-sm-175-208-480-vac store_origin: TN region: Tunisia --- # 208-480 VAC 3-Phase Power LED Fault & Status Indicators Phase Loss & Reversal Protection GIC MD21DF Voltage Monitoring Relay SM 175 208-480 VAC 3 Phase 5Amps **Brand:** gic **Price:** 18.56 DT **Availability:** ❌ Out of Stock ## Summary > ⚙️ Power up your protection game — never miss a beat in your 3-phase system! ## Quick Answers - **What is this?** GIC MD21DF Voltage Monitoring Relay SM 175 208-480 VAC 3 Phase 5Amps by gic - **How much does it cost?** 18.56 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/395899557-gic-md21df-voltage-monitoring-relay-sm-175-208-480-vac) ## Best For - gic enthusiasts ## Why This Product - Trusted gic brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Instant Visual Alerts:** Integrated LED indicators provide real-time fault and status updates, ensuring you’re always in the know. - • **Compact & Durable Design:** Sleek 4x3x6 cm form factor with a rugged build, perfect for tight industrial spaces and long-term reliability. - • **Fail-Safe Phase Protection:** Automatically detects and guards against phase loss, reversal, and asymmetry to keep your systems flawless. - • **Triple-Phase Power Mastery:** Seamlessly supports 208-480 VAC across 3 phases for robust industrial applications. - • **Customizable Voltage Safeguards:** Select under-voltage, over-voltage, and asymmetry trip levels with adjustable time delays for precision control. ## Overview The GIC MD21DF Voltage Monitoring Relay SM 175 is a compact, high-performance device engineered to protect three-phase electrical systems operating between 208 and 480 VAC. It offers advanced safeguards against phase loss, reversal, and asymmetry, with selectable voltage trip settings and time delays. Featuring clear LED fault and status indicators, this relay ensures real-time monitoring and enhanced operational security for industrial and commercial power setups. ## Description GIC SM 175 Voltage Monitoring Contact Rating: 5A at 250 VAC / 30 VDC (Resistive), Storage Temperature : -20 to +80 degree C, Tsin : T005023823, Voltage : 208 – 480 VAC. It provides protection against phase loss, phase reversal & phase asymmetry and it can be configured for 3 phase 4 wire or 1 phase system. It is selectable over voltage / under voltage trip level and selectable time delay. The LED indications for power and fault conditions with voltage sensing principle of 1 c/o or 2 c/o configuration. Review: Disappoint with desertcart to sell fault electrical parts - First time I am very disappoint with desertcart i recently purchased and confident this device are ok but when test it's not working. I want to ask desertcart how I get my money Please don't sell out this type of fault equipment on your website and please suggest or provide support or replacement by supplier. ## Features - Protects against Phase Loss, Phase Reversal & Phase Asymmetry - Multi-Voltage: Three Phase wire @ 208 – 480 VAC - Selectable Under Voltage / Over Voltage & Asymmetry - LED Indication for all Faults & for change in settings during run time for better security - 1 C/O Configuration ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B09GLT73T3 | | Best Sellers Rank | #23,361 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #8 in Voltage Monitoring Relays | | Brand | GIC | | Colour | black | | Customer Reviews | 4.0 4.0 out of 5 stars (18) 4.0 out of 5 stars | | Date First Available | 18 September 2021 | | Item Dimensions Lxwxh | 40 x 30 x 60 Millimeters | | Item Height | 6 Centimeters | | Item Part Number | MD21DF | | Item Weight | 300 g | | Item Width | 30 Millimeters | | Manufacturer | GIC | | Net Quantity | 1.00 Count | | Number Of Memory Sticks | 1 | | Product Dimensions | 4 x 3 x 6 cm; 300 g | ## Images ![GIC MD21DF Voltage Monitoring Relay SM 175 208-480 VAC 3 Phase 5Amps - Image 1](https://m.media-amazon.com/images/I/31gxiqaq9oL.jpg) ![GIC MD21DF Voltage Monitoring Relay SM 175 208-480 VAC 3 Phase 5Amps - Image 2](https://m.media-amazon.com/images/I/71Kn-8K6+rL.jpg) ![GIC MD21DF Voltage Monitoring Relay SM 175 208-480 VAC 3 Phase 5Amps - Image 3](https://m.media-amazon.com/images/I/61V7VGyk52L.jpg) ![GIC MD21DF Voltage Monitoring Relay SM 175 208-480 VAC 3 Phase 5Amps - Image 4](https://m.media-amazon.com/images/I/51YNo-yh9FL.jpg) ![GIC MD21DF Voltage Monitoring Relay SM 175 208-480 VAC 3 Phase 5Amps - Image 5](https://m.media-amazon.com/images/I/51hfmIzatCL.jpg) ## Customer Reviews ### ⭐ Disappoint with amazon to sell fault electrical parts *by M***R on 17 May 2026* First time I am very disappoint with amazon i recently purchased and confident this device are ok but when test it's not working. I want to ask amazon how I get my money Please don't sell out this type of fault equipment on your website and please suggest or provide support or replacement by supplier. ## Frequently Bought Together - GIC MD21DF Voltage Monitoring Relay SM 175 208-480 VAC 3 Phase 5Amps - Schneider Electric LC1E0910 Power Contactor - ETVS 25A 1NO (3 Pole AC Control), Grey - GIC Make SM 301 Single Phasing Preventor SPP 3 PH 415 VAC (Cat No: MA51BC.) --- ## 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.tn/products/395899557-gic-md21df-voltage-monitoring-relay-sm-175-208-480-vac](https://www.desertcart.tn/products/395899557-gic-md21df-voltage-monitoring-relay-sm-175-208-480-vac) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-21*