--- product_id: 539503775 title: "SJ2 Single Phase Preventer | 5–12.5 HP | 280–415V AC | Phase Failure Protection for Pumps | SJ" brand: "sj" price: "$U2940" currency: UYU in_stock: true url: https://www.desertcart.uy/products/539503775-sj2-single-phase-preventer-5-12-5-hp-280-415v store_origin: UY region: Uruguay --- # 5–12.5 HP motor protection 280–415 V AC compatibility Compact panel-mount design SJ2 Single Phase Preventer | 5–12.5 HP | 280–415V AC | Phase Failure Protection for Pumps | SJ **Brand:** sj **Price:** $U2940 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your pumps, protect your productivity! ## Quick Answers - **What is this?** SJ2 Single Phase Preventer | 5–12.5 HP | 280–415V AC | Phase Failure Protection for Pumps | SJ by sj - **How much does it cost?** $U2940 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/539503775-sj2-single-phase-preventer-5-12-5-hp-280-415v) ## Best For - sj enthusiasts ## Why This Product - Trusted sj brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Durable construction engineered to withstand rugged industrial environments and harsh conditions. - • **Wide Voltage Range:** Seamlessly operates on 280–415 V AC, ensuring consistent performance across diverse power supplies. - • **Phase Failure Shield:** Safeguard your 3-phase pumps from costly downtime with reliable phase failure and imbalance protection. - • **Trusted Brand Assurance:** Backed by SJ’s legacy of quality, giving you peace of mind with every installation. - • **Space-Smart Installation:** Compact panel-mount design fits effortlessly into existing pump control panels for quick setup. ## Overview The SJ2 Single Phase Preventer is a robust phase failure and imbalance protector designed for 3-phase motors ranging from 5 to 12.5 HP. Operating efficiently within a 280–415 V AC, 50 Hz supply, its compact panel-mount design ensures easy integration into pump panels. Built for durability and reliability, this device safeguards pumps from electrical faults, minimizing downtime and maintenance costs, all backed by the trusted SJ brand. ## Description Product Description Protects Your 5 to 12.5 HP Motor from Phase Failures | Trusted by Lakhs of Users | Made in India by S.J. Switchgears 100% Phase Failure Protection Preventor instantly cuts off motor supply when it detects missing phase helping prevent motor coil damage and costly downtime. One Device for All Motors: 5 to 12.5 HP Supports a wide HP Range from 5 to 12.5 works with most 3-phase motors — whether it’s for pumps, panels, or machinery. Ideal for residential, agricultural, and commercial use. Made in India. Trusted by Lakhs. Proudly manufactured by S.J. Switchgears Pvt. Ltd. in Bangalore. Trusted by Lakhs of customers nationwide for rugged, reliable motor protection solutions. ## Features - Motor Protection: Protects 3-Phase Motors (5–12.5 HP) from phase failure and imbalance to prevent costly damage - Wide Voltage Compatibility: Works on 280–415 V AC, 50 Hz 3-phase supply for reliable operation across different voltage conditions - Easy Installation: Compact, Panel-Mount Design for easy installation in pump panels and control cabinets - Rugged Build Quality: Durable Construction built for rugged industrial conditions and long-lasting performance - Single Phasing Prevention: Automatically disconnects motor supply when single phasing is detected to avoid motor burnout - Voltage Imbalance Detection: Monitors and protects against severe voltage imbalance conditions that can damage motor windings ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B078XBX4HC | | Are batteries included? | No | | Best Sellers Rank | #46,942 in Garden & Outdoors ( See Top 100 in Garden & Outdoors ) #246 in Pumps | | Brand | SJ | | Colour | White | | Country of Origin | India | | Customer Reviews | 3.7 3.7 out of 5 stars (3) | | Date First Available | 9 January 2018 | | Item Dimensions LxWxH | 17.5 x 10.5 x 4.5 Centimeters | | Item Height | 4.5 Centimeters | | Item Weight | 500 g | | Item Width | 10.5 Centimeters | | Item model number | PR-04 | | Manufacturer | SJ | | Model number | PR-04 | | Number of Memory Sticks | 1 | | Product Dimensions | 17.5 x 10.5 x 4.5 cm; 500 g | ## Images ![SJ2 Single Phase Preventer | 5–12.5 HP | 280–415V AC | Phase Failure Protection for Pumps | SJ - Image 1](https://m.media-amazon.com/images/I/61eNulsjSML.jpg) ![SJ2 Single Phase Preventer | 5–12.5 HP | 280–415V AC | Phase Failure Protection for Pumps | SJ - Image 2](https://m.media-amazon.com/images/I/819CLFKhVUL.jpg) ![SJ2 Single Phase Preventer | 5–12.5 HP | 280–415V AC | Phase Failure Protection for Pumps | SJ - Image 3](https://m.media-amazon.com/images/I/A1PhW1kSo3L.jpg) ![SJ2 Single Phase Preventer | 5–12.5 HP | 280–415V AC | Phase Failure Protection for Pumps | SJ - Image 4](https://m.media-amazon.com/images/I/61vFAZrKFPL.jpg) ![SJ2 Single Phase Preventer | 5–12.5 HP | 280–415V AC | Phase Failure Protection for Pumps | SJ - Image 5](https://m.media-amazon.com/images/I/61gCysljViL.jpg) --- ## 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.uy/products/539503775-sj2-single-phase-preventer-5-12-5-hp-280-415v](https://www.desertcart.uy/products/539503775-sj2-single-phase-preventer-5-12-5-hp-280-415v) --- *Product available on Desertcart Uruguay* *Store origin: UY* *Last updated: 2026-05-30*