--- product_id: 10938958 title: "Q340 40-Amp Three Pole Type QP Circuit Breaker" brand: "siemens" price: "€ 99.77" currency: EUR in_stock: true category: "Siemens" url: https://www.desertcart.pt/products/10938958-q340-40-amp-three-pole-type-qp-circuit-breaker store_origin: PT region: Portugal --- # 40 Amp power capacity Three-pole for balanced load 10,000 AIC interrupting rating Q340 40-Amp Three Pole Type QP Circuit Breaker **Brand:** siemens **Price:** € 99.77 **Availability:** ✅ In Stock ## Summary > ⚡ Power up with precision and protection — the Siemens Q340 keeps your system shockproof and future-ready! ## Quick Answers - **What is this?** Q340 40-Amp Three Pole Type QP Circuit Breaker by siemens - **How much does it cost?** € 99.77 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/10938958-q340-40-amp-three-pole-type-qp-circuit-breaker) ## Best For - siemens enthusiasts ## Why This Product - Trusted siemens brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Triple-Pole Stability:** Ensures balanced, reliable protection across three phases for complex electrical setups. - • **Robust 40 Amp Capacity:** Handles high-demand circuits with ease for uninterrupted power flow. - • **High Interrupting Rating:** 10,000 AIC rating guarantees superior safety against electrical faults and surges. - • **Plug-In Insta-Wire Design:** Streamlines installation with Siemens’ time-saving, tool-free plug-in connections. - • **Warranty-Safe Siemens Compatibility:** Maintains your panel’s warranty by using genuine Siemens breakers only—no compromises. ## Overview The Siemens Q340 is a 40 Amp, three-pole Type QP circuit breaker designed for 240V systems, offering a robust 10,000 AIC interrupting rating. It features a plug-in Insta-Wire design for quick installation and is fully compatible with Siemens PL and ES series load centers. Engineered for overload and short-circuit protection, it ensures electrical safety while preserving your Siemens panel warranty. ## Description Siemens offers a wide array of thermal-magnetic circuit breakers that are the key element for overload and short-circuit protection of your home's electrical system. To provide additional protection Siemens offers circuit breakers to protect against severe electrical shock or electrocution, mitigate the risk of electrical fires and protect against damaging surges and Voltage spikes. Circuit breakers are intended for switching and protection of your home's wiring from high temperatures caused by excess current higher than the rating of the wire. While thermal-magnetic circuit breakers are the key element for overload and short-circuit protection of your electrical system, there are potentially dangerous conditions that do not involve over current. To ensure the warranty on a Siemens panel is not voided, the use of Siemens breakers is required. Siemens strongly recommends against the use of "used" breakers. The installation of used breakers in a Siemens panel will void the warranty on the panel. Siemens does not sell used breakers and has not approved any 3rd party sellers to do so. ## Features - Three pole, 40 Amp, 240V type QP Circuit Breaker - 10,000 AIC interrupting rating - Siemens type QP circuit breakers provide easy plug-in connections in Siemens enclosures and the time saving insta-wire feature - Compatible with Siemens PL and ES series load centers - Use for overload and short-circuit protection of your electrical system ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0052MCSKG | | Best Sellers Rank | #164,554 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #79 in Thermal-Magnetic Circuit Breakers | | Brand Name | SIEMENS | | Circuit Breaker Type | Standard | | Current Rating | 40 A | | Customer Reviews | 4.6 4.6 out of 5 stars (144) | | Global Trade Identification Number | 00783643148420 | | Included Components | Q340 | | Item Dimensions D x W x H | 30"D x 8"W x 6"H | | Item Type Name | Q340 40-Amp Three Pole Type QP Circuit Breaker | | Item Weight | 14.4 ounces | | Manufacturer | Siemens -HI | | Model | Q340 | | Mounting Type | Plug | | Number of Items | 1 | | Number of Poles | 3 | | Part Number | Q340 | | UPC | 783643148420 | | Unit Count | 1 Count | | Voltage | 240 volts | ## Product Details - **Brand:** SIEMENS - **Circuit Breaker Type:** Standard - **Current Rating:** 40 A - **Mounting Type:** Plug - **Product Dimensions:** 30"D x 8"W x 6"H ## Images ![Q340 40-Amp Three Pole Type QP Circuit Breaker - Image 1](https://m.media-amazon.com/images/I/51U+SRu11tL.jpg) ![Q340 40-Amp Three Pole Type QP Circuit Breaker - Image 2](https://m.media-amazon.com/images/I/41XN4b1s96L.jpg) ## Questions & Answers **Q: Will this work on square d hom panels ?** A: We do not test our breakers in our competitors panels that's not to say it won't work but it will not be UL listed ~ you can confirm with SQD. **Q: Is this returnable** A: It should be **Q: Will this work on a 3 phase wind turbine. 400 watt, 12 volt. Wiring between turbine and controller. 3 wires from turbine to controller.** A: Unfortunately no. It won’t work. You’ll need a low voltage breaker for that application. Twelve volts isn’t in the parameters of this breaker. ## Frequently Bought Together - Siemens Q340 40-Amp Three Pole Type QP Circuit Breaker - Siemens Q330 Circuit Breaker 30a 3p 240v 10k Qp - Siemens Q360 60-Amp Three Pole Type QP Circuit Breaker --- ## 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.pt/products/10938958-q340-40-amp-three-pole-type-qp-circuit-breaker](https://www.desertcart.pt/products/10938958-q340-40-amp-three-pole-type-qp-circuit-breaker) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-08-22*