--- product_id: 449390502 title: "12V-110V DC Miniature Circuit Breaker, 125 Amp 1 Pole | Battery Breaker for Solar PV System and RV, Thermal Magnetic Trip, DIN Rail Mount, High Current DC Disconnect Switch 1P B125" brand: "chtaixi" price: "100.43 DT" currency: TND in_stock: true category: "Chtaixi" url: https://www.desertcart.tn/products/449390502-12v-110v-dc-miniature-circuit-breaker-125-amp-1-pole store_origin: TN region: Tunisia --- # 125A high current capacity Thermal magnetic trip with arc extinguishing DIN rail mount for easy installation 12V-110V DC Miniature Circuit Breaker, 125 Amp 1 Pole | Battery Breaker for Solar PV System and RV, Thermal Magnetic Trip, DIN Rail Mount, High Current DC Disconnect Switch 1P B125 **Brand:** chtaixi **Price:** 100.43 DT **Availability:** ✅ In Stock ## Summary > ⚡ Break free from power worries with the ultimate DC circuit guardian! ## Quick Answers - **What is this?** 12V-110V DC Miniature Circuit Breaker, 125 Amp 1 Pole | Battery Breaker for Solar PV System and RV, Thermal Magnetic Trip, DIN Rail Mount, High Current DC Disconnect Switch 1P B125 by chtaixi - **How much does it cost?** 100.43 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/449390502-12v-110v-dc-miniature-circuit-breaker-125-amp-1-pole) ## Best For - chtaixi enthusiasts ## Why This Product - Trusted chtaixi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Premium Durability:** Silver alloy contacts and flame-retardant shell deliver reliable performance under demanding conditions. - • **Seamless Integration:** Compact 1-pole design with universal 35mm DIN rail mount for effortless setup in any DC power distribution. - • **Powerhouse Protection:** 125 Amp rating safeguards your solar and RV systems from overload and short circuits. - • **Versatile Application:** Perfect for solar PV, battery systems, electric mopeds, and RVs—your all-in-one DC disconnect switch. - • **Arc-Extinguishing Tech:** Advanced magnetic system rapidly quells electrical arcs, ensuring safety and longevity. ## Overview The CHTAIXI 12V-110V DC Miniature Circuit Breaker is a robust 125 Amp, single-pole device designed for high-current DC systems like solar PV and RV battery setups. Featuring thermal magnetic trip technology and a magnetic arc extinguishing system, it ensures superior protection against overloads and short circuits. Its compact DIN rail mount design and premium materials make it a reliable, easy-to-install solution for modern off-grid and mobile power needs. ## Description Chtaixi 12V-110V DC Miniature Circuit Breaker, 125 Amp 1 Pole | Battery Breaker for Solar PV System and RV, Thermal Magnetic Trip, DIN Rail Mount, High Current DC Disconnect Switch 1P B125: desertcart.com: Tools & Home Improvement ## Features - FUNCTIONS: Used to protect power distribution facilities from overload and short-circuit damage, and can also be used for control and isolation. - ARC EXTINGUISHING: This DC circuit breaker has a magnetic system to assist arc extinguishing. - QUALITY: Silver alloy contacts, flame retardant material shell, color indicator. - APPLICATION: Used in battery power systems, solar photovoltaic systems, RV, electric moped, or other DC systems. - INSTALLATION: 35mm DIN rail mount, screw clamp wires(soft silicone wire needs to crimp fixed the wire end with copper crimp first). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B1WC651R | | Best Sellers Rank | #48,804 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #38 in Miniature Circuit Breakers | | Brand Name | CHTAIXI | | Circuit Breaker Type | Standard | | Current Rating | 125 Amps | | Customer Reviews | 4.4 4.4 out of 5 stars (53) | | Manufacturer | CHTAIXI | | Model | 1 Pole | | Mounting Type | DIN Rail Mount | | Number of Poles | 1 | | Part Number | 47NZ125-B | | Smart Home Compatibility | Not Smart Home Compatible | | Unit Count | 1.0 Count | | Voltage | 12 Volts | ## Product Details - **Brand:** CHTAIXI - **Circuit Breaker Type:** Standard - **Current Rating:** 125 Amps - **Mounting Type:** DIN Rail Mount - **Number Of Poles:** 1 ## Images ![12V-110V DC Miniature Circuit Breaker, 125 Amp 1 Pole | Battery Breaker for Solar PV System and RV, Thermal Magnetic Trip, DIN Rail Mount, High Current DC Disconnect Switch 1P B125 - Image 1](https://m.media-amazon.com/images/I/51oFOKTNfSL.jpg) ![12V-110V DC Miniature Circuit Breaker, 125 Amp 1 Pole | Battery Breaker for Solar PV System and RV, Thermal Magnetic Trip, DIN Rail Mount, High Current DC Disconnect Switch 1P B125 - Image 2](https://m.media-amazon.com/images/I/51HWKREovkL.jpg) ![12V-110V DC Miniature Circuit Breaker, 125 Amp 1 Pole | Battery Breaker for Solar PV System and RV, Thermal Magnetic Trip, DIN Rail Mount, High Current DC Disconnect Switch 1P B125 - Image 3](https://m.media-amazon.com/images/I/51NanAiNwLL.jpg) ![12V-110V DC Miniature Circuit Breaker, 125 Amp 1 Pole | Battery Breaker for Solar PV System and RV, Thermal Magnetic Trip, DIN Rail Mount, High Current DC Disconnect Switch 1P B125 - Image 4](https://m.media-amazon.com/images/I/51xgCJrKwQL.jpg) ![12V-110V DC Miniature Circuit Breaker, 125 Amp 1 Pole | Battery Breaker for Solar PV System and RV, Thermal Magnetic Trip, DIN Rail Mount, High Current DC Disconnect Switch 1P B125 - Image 5](https://m.media-amazon.com/images/I/51Jl6moqApL.jpg) ## Available Options This product comes in different **Part Number, Model, Style** options. ## Questions & Answers **Q: Why does it have a neg and positive marking.. .usually you just interrupt the positive in this case with single pole?** A: Yes, usually you just interrupt the positive with single pole. DC is directional, so by marking positive and negative poles, and wiring according to the markings, you will clear that the DC direction is from circuit breaker bottom to top, which is easy to maintain. **Q: What end top or bottom does the load connect to on a single pole breaker ? The breaker has a plus sign and a minus sign that is useless.** A: The load is generally connect on the top of the circuit breaker, DC direction is from the bottom of the circuit breaker to the top. **Q: what wire size is accepted?** A: a wire size that is rated at 100amp. **Q: Do you connect the battery to the top or bottom ?** A: There are polarity markings on the body of the switch. I connected the dc power lines accordingly. ## Frequently Bought Together - Chtaixi 12V-110V DC Miniature Circuit Breaker, 125 Amp 1 Pole Battery Breaker Protector for Solar PV System and RV, Thermal Magnetic Trip, DIN Rail Mount, High Current DC Disconnect Switch MCB 1P B125 - CHTAIXI DC Miniature Circuit Breaker, 2 Pole 1000V 63 Amp Isolator for Solar PV System, Thermal Magnetic Trip, DIN Rail Mount, Chtaixi DC Disconnect Switch C63 - MOLLOM 8 Way Circuit Breaker MCB Distribution Protection Box with DIN Rail, IP65 Waterproof,for Indoor and Outdoor --- ## 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/449390502-12v-110v-dc-miniature-circuit-breaker-125-amp-1-pole](https://www.desertcart.tn/products/449390502-12v-110v-dc-miniature-circuit-breaker-125-amp-1-pole) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-20*