--- product_id: 375750418 title: "51120-1 120/240 Volt Panel Protector, 4-Mode Protection, Light Commercial/Residential Grade, In NEMA 1 Enclosure" brand: "leviton" price: "₨285192" currency: LKR in_stock: true reviews_count: 5 category: "Leviton" url: https://www.desertcart.lk/products/375750418-51120-1-120-240-volt-panel-protector-4-mode-protection store_origin: LK region: Sri Lanka --- # 4-mode surge protection Real-time diagnostic indicator 120/240V dual voltage support 51120-1 120/240 Volt Panel Protector, 4-Mode Protection, Light Commercial/Residential Grade, In NEMA 1 Enclosure **Brand:** leviton **Price:** ₨285192 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your protection game — don’t let surges crash your vibe! ## Quick Answers - **What is this?** 51120-1 120/240 Volt Panel Protector, 4-Mode Protection, Light Commercial/Residential Grade, In NEMA 1 Enclosure by leviton - **How much does it cost?** ₨285192 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/375750418-51120-1-120-240-volt-panel-protector-4-mode-protection) ## Best For - leviton enthusiasts ## Why This Product - Trusted leviton brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Instant Visual Status:** Stay informed with real-time LED indicators showing power and suppression status—no guesswork, just peace of mind. - • **Quad-Mode Surge Defense:** Protect your home or office with advanced 4-mode surge suppression that guards every phase of your electrical system. - • **Robust NEMA 1 Enclosure:** Durable metal housing designed for panel mounting ensures long-lasting protection in any standard electrical setup. - • **Trusted Leviton Quality:** Backed by UL certification and a limited lifetime warranty, this surge protector is engineered for reliability and safety. - • **Dual Voltage Compatibility:** Seamlessly supports both 120V and 240V circuits, perfect for modern residential and light commercial setups. ## Overview The Leviton 51120-1 Panel Protector delivers professional-grade 4-mode surge protection for 120/240V systems in a compact NEMA 1 metal enclosure. Designed for residential and light commercial use, it features real-time diagnostic LEDs and UL certification, ensuring reliable, visible defense against power surges. Compatible with Decora Home Controls and backed by a limited lifetime warranty, it’s the smart upgrade for any modern electrical panel. ## Description 7 INCH W X 4.06 INCH D X 7 INCH H SIZE; BRANCH PANEL USED ON; 50/60 HZ FREQUENCY RATING; 12 AWG LEAD WIRE CONNECTION TYPE; UL (CANADA AND US) APPROVAL; RESIDENTIAL APPLICATION; 120/240 VAC VOLTAGE RATING; PANEL MOUNTING; NEMA 1 ENCLOSURE Review: Just had it installed but have had no hits yet. Review: Although I am a graduate electrical engineer and formerly a licensed electrician, installing this Leviton 51120-1 120/240 Volt Panel Protector and connecting it to my modern Leviton electric panel was no small project. Without such a background, a do-it-yourself homeowner might be prudent to hire an electrician. To gain access to one of my main panel's knock-outs, so I could install a 1/2" X 3 1/2" conduit nipple between the two, I used a hole saw to create an opening through a wooden stud. That required a right angle drill because a conventional drill would not fit into the 6" square opening required for the Panel Protector. The knock out on the electric panel, of course, needed to be exactly aligned with the knockout on the panel protector. Careful measurements are important. Installing the conduit nipple between the two metal cabinets, required lock nuts and bushings on each end before threading the wire. Using metal conduit between my panel and this device helps to enhance ground continuity in addition to the green grounding wire. The extra grounding should improve protection. Instructions with this surge protection unit suggests connecting it to the panel through a two-pole 20-amp or 30-amp circuit breaker. My choice was a 30-amp breaker which calls for #10 copper wire. I used THNN wire for the connections, which included L1 & L2 hot wires, a white neutral and a green grounding wire. A DEWALT Impact ready right angle attachment to my impact tool enabled me to use screws to mount and secure the panel protector to the wooden stud. Turning on the breaker illuminated the two green lights on this device showing that it is actively protecting. I'm optimistic that this surge protection will be effective for our home, which has had some power surge issues in the past. The photo shows my modern Leviton panel with the Leviton surge protection unit to the right. ## Features - GY SPD 120/240VAC 1PHASE - Product Type: SURGE PROTECTIVE PANEL - 120/240 Volt Panel Protector 4 Mode Protection - Real time diagnostic visual indicator shows power and suppression status for each protected phase - Standard J Box metal enclosures - Compatible with Decora Home Controls - Limited Lifetime Warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00081K55Q | | ASIN | B00081K55Q | | Amperage | 20 Amps | | Brand Name | Leviton | | Color | Image | | Compatible Devices | All | | Connector Type | Nema 1 | | Customer Reviews | 4.8 4.8 out of 5 stars (454) | | Customer reviews | 4.8 4.8 out of 5 stars (454) | | Date First Available | 6 August 2012 | | Global Trade Identification Number | 00078477827642 | | Included Components | 51120-1 | | Is Discontinued By Manufacturer | No | | Item Dimensions L x W | 17.8L x 10.3W centimeters | | Item Type Name | 51120-1 | | Item Weight | 1.95 Kilograms | | Item model number | 51120-1 | | Manufacturer | Leviton | | Manufacturer | Leviton | | Material Type | Metal | | Model | 51120-1 | | Part Number | 51120-1 | | Power Plug Type | No Plug | | Product Dimensions | 20.96 x 12.07 x 20.96 cm; 1.95 kg | | Specification Met | NEMA, UL | | Total Power Outlets | 1 | | UPC | 078477827642 | | Voltage | 240 Volts | ## Product Details - **Brand:** Leviton - **Colour:** Image - **Compatible devices:** All - **Material:** Metal - **Product dimensions:** 17.8L x 10.3W centimeters ## Images ![51120-1 120/240 Volt Panel Protector, 4-Mode Protection, Light Commercial/Residential Grade, In NEMA 1 Enclosure - Image 1](https://m.media-amazon.com/images/I/71MgM1rmbxL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by R***. on 30 September 2025* Just had it installed but have had no hits yet. ### ⭐⭐⭐⭐⭐ Review *by I***. on 26 November 2021* ### ⭐⭐⭐⭐⭐ Review *by L***R on 22 October 2024* Although I am a graduate electrical engineer and formerly a licensed electrician, installing this Leviton 51120-1 120/240 Volt Panel Protector and connecting it to my modern Leviton electric panel was no small project. Without such a background, a do-it-yourself homeowner might be prudent to hire an electrician. To gain access to one of my main panel's knock-outs, so I could install a 1/2" X 3 1/2" conduit nipple between the two, I used a hole saw to create an opening through a wooden stud. That required a right angle drill because a conventional drill would not fit into the 6" square opening required for the Panel Protector. The knock out on the electric panel, of course, needed to be exactly aligned with the knockout on the panel protector. Careful measurements are important. Installing the conduit nipple between the two metal cabinets, required lock nuts and bushings on each end before threading the wire. Using metal conduit between my panel and this device helps to enhance ground continuity in addition to the green grounding wire. The extra grounding should improve protection. Instructions with this surge protection unit suggests connecting it to the panel through a two-pole 20-amp or 30-amp circuit breaker. My choice was a 30-amp breaker which calls for #10 copper wire. I used THNN wire for the connections, which included L1 & L2 hot wires, a white neutral and a green grounding wire. A DEWALT Impact ready right angle attachment to my impact tool enabled me to use screws to mount and secure the panel protector to the wooden stud. Turning on the breaker illuminated the two green lights on this device showing that it is actively protecting. I'm optimistic that this surge protection will be effective for our home, which has had some power surge issues in the past. The photo shows my modern Leviton panel with the Leviton surge protection unit to the right. ## Frequently Bought Together - Leviton 51120-1 120/240 Volt Panel Protector, 4-Mode Protection, Light Commercial/Residential Grade, In NEMA 1 Enclosure - Intermatic AG3000 120/240 VAC Universal HVAC Surge Protective Device - Comprehensive Surge Protection, TPMOV Technology, Watertight Enclosure - UL Listed and Reliable - EATON CHSPT2ULTRA Ultimate Surge Protection 3rd Edition, 2.38" Length, 5.25" Width 7.5" Height --- ## 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.lk/products/375750418-51120-1-120-240-volt-panel-protector-4-mode-protection](https://www.desertcart.lk/products/375750418-51120-1-120-240-volt-panel-protector-4-mode-protection) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-06-17*