--- product_id: 477719384 title: "Microwave Oven Door Switch Replacement Part, 16A 125VAC, KW3AT-16 (Downward Compatible with KW3A-16), Normally Open - 1Pc" brand: "hiqltyla" price: "¥3281" currency: JPY in_stock: true category: "Hi Qltyla" url: https://www.desertcart.jp/products/477719384-microwave-oven-door-switch-replacement-part-16a-125vac-kw3at-16 store_origin: JP region: Japan --- # 16A high current rating 125°C max temperature resistance Quick-connect terminals for easy install Microwave Oven Door Switch Replacement Part, 16A 125VAC, KW3AT-16 (Downward Compatible with KW3A-16), Normally Open - 1Pc **Brand:** hiqltyla **Price:** ¥3281 **Availability:** ✅ In Stock ## Summary > 🔥 Upgrade your microwave’s heartbeat with the KW3AT-16 switch! ⚡ ## Quick Answers - **What is this?** Microwave Oven Door Switch Replacement Part, 16A 125VAC, KW3AT-16 (Downward Compatible with KW3A-16), Normally Open - 1Pc by hiqltyla - **How much does it cost?** ¥3281 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/477719384-microwave-oven-door-switch-replacement-part-16a-125vac-kw3at-16) ## Best For - hiqltyla enthusiasts ## Why This Product - Trusted hiqltyla brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Installation:** Quick-connect #187 terminals make replacement a breeze—no electrician needed. - • **Universal Compatibility:** Fits most microwave models including KW3A-16 series, restoring your appliance’s peak performance. - • **Long-Lasting Reliability:** Mechanical life rated for 50,000 cycles ensures your microwave door switch won’t quit on you anytime soon. - • **Heat-Resistant Durability:** Upgraded to withstand temperatures up to 125°C, perfect for harsh kitchen environments. - • **Power Through with 16 Amps:** Handles high current loads up to 16A for reliable microwave operation. ## Overview The KW3AT-16 Microwave Oven Door Switch is a normally open, high-performance replacement part rated for 16 amps and 125 volts, designed to endure up to 125°C. Compatible with a wide range of microwave models, it features quick-connect terminals for easy installation and a robust mechanical lifespan of 50,000 cycles, ensuring reliable microwave operation and safety. ## Description Universal Microwave Door Switch Model Number: KW3AT-16 Compatible Model Numbers: KW3A-16 SZM-V16-FD-63 SZM-V16-FA-63 3B73362F PS3522738 Character: Normally Open Outline Characteristic: Flat Terminal Material: High Temperature Resistant Plastics Color: Black Current: 16A Voltage: 125V / 250V Mechanical Life: 5E4 (50000 times) Temperature Resistance: 125° Terminal Type: Quick-connect Terminal #187(t=0.8) Shell Dimensions: 1.09" x 0.63"x 0.41"(27.8 x 15.9 x 10.3 mm) Single Weight: 0.22oz / 6.3g Specifications: Insulation Strength: 100MΩ Min Test Voltage: AC1000V/2000V Contact Resistance: 50mΩ Max Operating Force: 1.5N Max Release Force: 0.3N Min Operating Position: 14.7±0.4mm Movement Differential: 0.4mm Max Package Includes: 1x Microwave Door Switch (Normally Open) Note: There was two different Character Types of Microwave Door Switch: Normally Closed, Normally Open. One Switch is for the Top Sensor and the other is for the Bottom Sensor, Pls make sure which type you need before order. ## Features - Character: Normally Open (Normal time Terminal COM connect to Terminal NC, the Circuit is Open; When pressed the button, Terminal COM connect to Terminal NO, the Circuit is Closed) - Specifications: 16(4)A 125/250VAC u, 10A 30VDC, 40T125, 5E4 - Model Number: KW3AT-16, Compatible M/N: KW3A-16 SZM-V16-FD-63 SZM-V16-FA-63 3B73362F PS3522738 - KW3AT-16 has a maximum temperature resistance is 125 ℃ and KW3A-16 has a maximum temperature resistance is 105 ℃, Other electrical performances are the same, so KW3AT-16 is an upgraded version of KW3A-16, which is more competent in harsh working environments than KW3A-16 - Compatible with Most of Microwave Oven, If the microwave will not turn or heat properly, there could be an issue with the door switch, a new switch can return the microwave oven to normal operation - Package Includes: 1x Microwave Door Switch (Normally Open) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B083CYSJQW | | Actuator Type | Push Button | | Brand Name | HiQltyla | | Circuit Type | 1-way | | Color | Black (Normally Open) - 1Pc | | Connectivity Protocol | X-10 | | Connector Type | Crimp | | Contact Material | Brass | | Contact Type | Normally Open | | Control Method | Touch | | Controller Type | Push Button | | Current Rating | 16 Amps | | Customer Reviews | 4.6 4.6 out of 5 stars (1,285) | | International Protection Rating | IP54 | | Item Dimensions | 28 x 16 x 10 millimeters | | Item Weight | 0.22 Ounces | | Manufacturer | HiQltyla | | Material Type | Plastic | | Model | 1x Normally Open | | Mounting Type | Surface Mount | | Number of Items | 1 | | Number of Positions | 2 | | Operating Voltage | 250 Volts | | Operation Mode | ON-OFF | | Part Number | KW3AT-16 - NO -1Pc | | Specification Met | IP54 | | Switch Type | Temperature Switch | | Terminal | Quick Connect | | UPC | 757277828416 | | Unit Count | 1.0 Count | | Upper Temperature Rating | 125 Degrees Celsius | | Wattage | 4000 watts | ## Product Details - **Connector type:** Crimp - **Contact type:** Normally Open - **Current rating:** 16 Amps - **Operating voltage:** 250 Volts - **Operation mode:** ON-OFF ## Images ![Microwave Oven Door Switch Replacement Part, 16A 125VAC, KW3AT-16 (Downward Compatible with KW3A-16), Normally Open - 1Pc - Image 1](https://m.media-amazon.com/images/I/61aUP95Dz2L.jpg) ## Questions & Answers **Q: Will this work for magic chef microwave model hmm1110w/hmm110b?** A: You need to pull out the defective switch and read what’s on the switch is it rated for 115 VAC 16 amp normally closed.. Most microwave doors have three switches some open, some closed. If you already know which one is defective then the label on it will tell you what you need. My microwave was a GE and this switch worked perfectly. **Q: Does this fit Panasonic NNSC668S door? Even after opening the door, the microwave keeps running.** A: When my switch broke and while waiting for the replacement switch to arrive, I jumpers the two wires so I could still use the oven. Oven worked but would not shut off when the door was opened, which really surprised me. Once the new switch was installed, oven functioned correctly. Make sure the switch lever is able to fully cycle the switch. It sounds like your switch is acting as if the wires are jumpered. **Q: Can this item replace the cuisine art oven toaster toa-60 model?** A: The only way to make sure is to disassemble Otto the point you can read the part number that’s broken **Q: Is this compatible with the V-5230Q switch used in Wolf microwaves?** A: I dont know. If it's on the list of compatible microwave it will. I think you can address this question to the manufacturer and cross reference. ## Frequently Bought Together - Microwave Oven Door Switch Replacement Part, 16A 125VAC, KW3AT-16 (Downward Compatible with KW3A-16), Normally Open - 1Pc - BOJACK Microwave Oven Door Switch KW3A 16A 125/250 V Door Interloc (Pack of 2 pcs Normally Close Switchs) --- ## 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.jp/products/477719384-microwave-oven-door-switch-replacement-part-16a-125vac-kw3at-16](https://www.desertcart.jp/products/477719384-microwave-oven-door-switch-replacement-part-16a-125vac-kw3at-16) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-14*