--- product_id: 437555214 title: "Dual Power Automatic Transfer Switch AC 400V 4P 100A ATS PC Automatic Changeover Toggle Switch Double Transfer Switch for Municipal Electricity, UPS, Inverter, Solar" brand: "buachois" price: "502 kr" currency: DKK in_stock: true url: https://www.desertcart.dk/products/437555214-dual-power-automatic-transfer-switch-ac-400v-4p-100a-ats store_origin: DK region: Denmark --- # 100A rated current Flame-retardant material ≤0.05s rapid switching Dual Power Automatic Transfer Switch AC 400V 4P 100A ATS PC Automatic Changeover Toggle Switch Double Transfer Switch for Municipal Electricity, UPS, Inverter, Solar **Brand:** buachois **Price:** 502 kr **Availability:** ✅ In Stock ## Summary > ⚡ Stay powered, stay ahead – never miss a beat with instant automatic transfer! ## Quick Answers - **What is this?** Dual Power Automatic Transfer Switch AC 400V 4P 100A ATS PC Automatic Changeover Toggle Switch Double Transfer Switch for Municipal Electricity, UPS, Inverter, Solar by buachois - **How much does it cost?** 502 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/437555214-dual-power-automatic-transfer-switch-ac-400v-4p-100a-ats) ## Best For - buachois enthusiasts ## Why This Product - Trusted buachois brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Monitoring Ready:** Includes a timed standby open signal output for easy external status indication and control. - • **Robust Safety Standards:** Constructed with flame-retardant plastic and silver contacts for enhanced durability and safety. - • **Instant Power Continuity:** Seamlessly switches power in under 50 milliseconds to keep your operations uninterrupted. - • **High Electrical Endurance:** Engineered for 2000 electrical and 5000 mechanical cycles, ensuring long-term reliability. - • **Versatile Backup Compatibility:** Supports UPS, inverter, solar, and photovoltaic systems for ultimate energy flexibility. ## Overview The Dual Power Automatic Transfer Switch AC 400V 4P 100A is a high-performance, rapid-response switch designed for seamless power source transfer between mains, UPS, inverter, and solar systems. With a switching time of less than 0.05 seconds, flame-retardant construction, and robust electrical endurance, it ensures continuous, safe, and reliable power supply for critical environments like factories and commercial spaces. ## Description Dual Power Automatic Transfer Switch AC 400V 4P 100A ATS PC Automatic Changeover Toggle Switch Double Transfer Switch for Municipal Electricity, UPS, Inverter, Solar ## Features - Scope of application of backup power supply: This product is a dual-power automatic transfer switch for photovoltaic models. Unlike the mains model, which can only be connected to mains or generators, this product can be connected to UPS, inverter, solar energy, and photovoltaic as a backup power supply. - Rapid switching: The switching response time of the transfer switch is ≤0.05 (S). When the normal power supply is abnormal, the backup power supply will work immediately, and the power supply will be switched in milliseconds without interruption, ensuring the continuity, reliability and safety of the power supply. - Technical parameters: Rated control voltage Us: AC220 V 50Hz; Rated current: 100A; Rated voltage: 400V AC; Insulation voltage: 690V AC; Rated frequency: 50Hz/60Hz; Rated short-circuit current: 50kA; Rated impulse withstand voltage: 8kV; Service life: Electrical: 2000 times; Mechanical: 5000 times. - Flame-retardant material: Made of high-quality flame-retardant plastic material, it has good insulation, high temperature resistance, aging resistance, safety and reliability. The use of silver contacts can greatly improve the conductivity and longevity of the product. - Applicable places: The emergency switch has a built-in timed standby open signal output port, which can be connected to an external signal indicator, which is convenient for observation outside the cabinet. 35mm guide rail installation design. It is widely used in various places where continuous power failure is not allowed, such as factories, shopping malls, nurseries, etc. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Buachois | | Part number | AB123 | | Item Weight | 750 g | | Item model number | NLQ4-125/4P | | Size | Photovoltaics | | Colour | White | | Finish | Finish | | Power source type | PowerSource | | Voltage | 1 Volts | | Wattage | 40000 watts | | Installation method | InstallationMethod | | Item Package Quantity | 1 | | Switch Type | 1-way | | Included components | inc | | Batteries included? | No | | Batteries Required? | No | ## Product Details - **Operation mode:** Automatic - **Current rating:** 100 Amps - **Operating voltage:** 4E+2 Volts - **Contact type:** Normally Open - **Connector type:** Crimp - **Brand:** Buachois - **Terminal:** Screw - **Circuit type:** 1-way - **Actuator type:** Push Button - **Contact material:** Plastic ## Images ![Dual Power Automatic Transfer Switch AC 400V 4P 100A ATS PC Automatic Changeover Toggle Switch Double Transfer Switch for Municipal Electricity, UPS, Inverter, Solar - Image 1](https://m.media-amazon.com/images/I/61ONcmJXXlL.jpg) ## Available Options This product comes in different **Size Name** options. ## Frequently Bought Together - Dual Power Automatic Transfer Switch AC 400V 4P 100A ATS PC Automatic Changeover Toggle Switch Double Transfer Switch for Municipal Electricity, UPS, Inverter, Solar - DEWIN Transfer Switch, Automatic Transfer Switch G2R 63A DIN Rail ATS Dual Power Automatic Transfer Switch Electrical Selector Switches 220V (Size : 2P) - Dual Power Automatic Transfer Switch Uninterruptible Power 2P 63A 100A 125A Photovoltaic Automatic Changeover Switch ATS PV Solar Inverter UPS Toggle Switch (63A) --- ## 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.dk/products/437555214-dual-power-automatic-transfer-switch-ac-400v-4p-100a-ats](https://www.desertcart.dk/products/437555214-dual-power-automatic-transfer-switch-ac-400v-4p-100a-ats) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-29*