--- product_id: 536766457 title: "Miniature Circuit Breaker 120V/240V ac Circuit Breaker 1 Pole 20Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C20A)" brand: "kerwinn" price: "R428" currency: ZAR in_stock: true reviews_count: 8 category: "Kerwinn" url: https://www.desertcart.co.za/products/536766457-miniature-circuit-breaker-120v-240v-ac-circuit-breaker-1-pole store_origin: ZA region: South Africa --- # 20A rated current - reliable power control 120V/240V AC voltage - versatile compatibility DIN rail mount - effortless installation Miniature Circuit Breaker 120V/240V ac Circuit Breaker 1 Pole 20Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C20A) **Brand:** kerwinn **Price:** R428 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your safety game with smart, sleek circuit protection! ## Quick Answers - **What is this?** Miniature Circuit Breaker 120V/240V ac Circuit Breaker 1 Pole 20Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C20A) by kerwinn - **How much does it cost?** R428 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/536766457-miniature-circuit-breaker-120v-240v-ac-circuit-breaker-1-pole) ## Best For - kerwinn enthusiasts ## Why This Product - Trusted kerwinn brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Instant Safety Trip:** Protect your circuits from overloads and short circuits in a flash - • **Visual Status Window:** Quickly check breaker status at a glance without guesswork - • **Universal Voltage Range:** Seamlessly supports both 120V and 240V AC systems for ultimate flexibility - • **Effortless DIN Rail Mounting:** Streamlined installation designed for professionals on the go - • **Robust Flame-Retardant Shell:** Durable thermoset casing ensures long-lasting, fire-safe operation ## Overview The KERWINN Miniature Circuit Breaker (Model DZ47N-63-1P) is a single-pole, 20 Amp rated device designed for 120V/240V AC systems. Featuring a flame-retardant thermoset shell and a visual status window, it offers reliable overload and short circuit protection. Its DIN rail mounting ensures quick, professional installation, making it ideal for marine, solar photovoltaic, residential, and commercial power systems. ## Description KERWINN Miniature Circuit Breaker 120V/240V ac Circuit Breaker 1 Pole 20Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C20A): desertcart.com: Tools & Home Improvement Review: Great item - Like the mini breaker system small profile for utility trailer Review: give me a break-er. - works as advertised, available in many configurations. ## Features - Product Name: AC circuit breaker, Model: DZ47N-63-1P, Rated voltage: 120V/240V AC, Number of poles: 1 pole, Rated current: 20A - Flame retardant thermoset shell, plus large interface, visualization window, the circuit breaker work at a glance - Safety: When the circuit is short-circuited can immediately trip, to protect the safety of the circuit, can be easily installed on the DIN rail. - Suitable for protecting AC circuits from overload short circuit damage and infrequent line conversion, for AC power systems, residential buildings, RVs, office buildings, solar photovoltaic systems, etc. - About the after-sales service, feel free to contact us with any questions, we have a professional team to provide you with help services ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BYSDRBSD | | Best Sellers Rank | #26,842 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #12 in Miniature Circuit Breakers | | Brand | kerwinn | | Brand Name | kerwinn | | Circuit Breaker Type | Standard | | Current Rating | 20 A | | Customer Reviews | 4.6 out of 5 stars 79 Reviews | | Included Components | MINI CIRCUIT BREAKER | | Manufacturer | kerwinn | | Model | DZ47N-63-1P | | Mounting Type | DIN Rail Mount | | Number Of Poles | 1 | | Number of Items | 1 | | Number of Poles | 1 | | Part Number | DZ47N-63-1P | | Unit Count | 1 Count | | Voltage | 120 volts, 240 volts | ## Product Details - **Brand:** kerwinn - **Circuit Breaker Type:** Standard - **Current Rating:** 20 Amps - **Mounting Type:** DIN Rail Mount - **Number Of Poles:** 1 ## Images ![Miniature Circuit Breaker 120V/240V ac Circuit Breaker 1 Pole 20Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C20A) - Image 1](https://m.media-amazon.com/images/I/613k5lRFAzL.jpg) ## Available Options This product comes in different **Material Type, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great item *by R***S on September 11, 2026* Like the mini breaker system small profile for utility trailer ### ⭐⭐⭐⭐⭐ give me a break-er. *by M***E on September 13, 2026* works as advertised, available in many configurations. ### ⭐⭐⭐⭐⭐ Use for control box *by J***E on October 4, 2026* Great product ## Frequently Bought Together - KERWINN Miniature Circuit Breaker 120V/240V ac Circuit Breaker 1 Pole 20Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C20A) - MOLLOM 2 Way Circuit Breaker MCB Distribution Protection Box with DIN Rail, IP65 Waterproof,for Indoor and Outdoor - KERWINN Miniature Circuit Breaker 120V/240V ac Circuit Breaker 2Pole 32Amp Smart Circuit Breaker DIN Rail Mount for Marine Power Systems,Solar photovoltaic Systems(C32A) --- ## 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.co.za/products/536766457-miniature-circuit-breaker-120v-240v-ac-circuit-breaker-1-pole](https://www.desertcart.co.za/products/536766457-miniature-circuit-breaker-120v-240v-ac-circuit-breaker-1-pole) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-11-07*