--- product_id: 113831376 title: "Universal Rotary Cam Selector Changeover Switch SZW26-20/D202.2 660V 20A ON-OFF-ON 3 Position 2 Phase 8 Terminals" brand: "heschen" price: "188 kr" currency: DKK in_stock: true reviews_count: 13 url: https://www.desertcart.dk/products/113831376-universal-rotary-cam-selector-changeover-switch-szw26-20-d202-2 store_origin: DK region: Denmark --- # 660V high-voltage rating 3-position rotary cam selector 8 screw terminals for secure connections Universal Rotary Cam Selector Changeover Switch SZW26-20/D202.2 660V 20A ON-OFF-ON 3 Position 2 Phase 8 Terminals **Brand:** heschen **Price:** 188 kr **Availability:** ✅ In Stock ## Summary > 🔄 Switch Smart, Stay Ahead: The Ultimate Rotary Selector for Pros ## Quick Answers - **What is this?** Universal Rotary Cam Selector Changeover Switch SZW26-20/D202.2 660V 20A ON-OFF-ON 3 Position 2 Phase 8 Terminals by heschen - **How much does it cost?** 188 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/113831376-universal-rotary-cam-selector-changeover-switch-szw26-20-d202-2) ## Best For - heschen enthusiasts ## Why This Product - Trusted heschen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Durable:** Compact 50x50x70mm size with sturdy plastic & brass contacts - • **Plug & Play Ready:** Panel mount design with screw terminals for easy installation - • **Precision Control:** Mechanical knob with locking for secure, manual operation - • **Seamless Switching:** ON-OFF-ON 3-position rotary design for versatile operation modes - • **Power Up with Confidence:** Handles up to 20A current for robust electrical control ## Overview The Heschen Universal Rotary Cam Selector SZW26-20/D202.2 is a compact, high-voltage (660V) rotary switch designed for professional-grade electrical control. Featuring a 3-position ON-OFF-ON operation, 20A current rating, and 8 screw terminals with brass contacts, it ensures reliable, secure connections. Its mechanical knob with locking and panel mount design make it ideal for seamless integration into industrial and smart electrical systems. ## Features - Model:SZW26-20/D202.2;Material:Plastic & Electronics - Ui : 660V ; Ith : 20A - Positions: 3 Positions(1-0-2) - Size: 50 x 50 x 70mm /2" x 2" x 2.8"(L*W*T) - Net Weight: 89g ## Technical Specifications | Specification | Value | |---------------|-------| | Actuator Type | Rotary | | Asin | B07L8SJXGV | | Best Sellers Rank | 9,650 in Business, Industry & Science (See Top 100 in Business, Industry & Science) 4 in Selector Switches | | Brand | Heschen | | Circuit Type | 3-way | | Colour | Blue | | Compatible Devices | Electrical devices, motors, Wi-Fi enabled devices | | Connectivity Protocol | Wi-Fi | | Connector Type | Screw Terminals | | Contact Material | Brass | | Contact Type | Normally Open | | Control Method | Push Button | | Control Type | Manual with Locking | | Controller Type | Mechanical knob | | Country Of Origin | China | | Current Rating | 20 Amps | | Customer Reviews | 4.5 4.5 out of 5 stars (2,827) 4.5 out of 5 stars | | International Protection Rating | IP20 | | Item Dimensions | 7.3 x 3.7 x 3.7 centimetres | | Item Weight | 0.13 Grams | | Manufacturer | SL | | Manufacturer Part Number | SZW26-20/D202.2 | | Material | Plastic | | Model Number | SZW26-20/D202.2 | | Mounting Type | Panel Mount | | Number Of Items | 1 | | Number Of Positions | 3 | | Operating Voltage | 660 Volts | | Operation Mode | ON-OFF-ON | | Specification Met | CE, IP20 | | Switch Type | Rotary | | Terminal | Screw | | Unit Count | 1 count | | Upc | 670534181324 | | Wattage | 13200 watts | ## Product Details - **Brand:** Heschen - **Connector type:** Screw Terminals - **Contact type:** Normally Open - **Current rating:** 20 Amps - **Item dimensions L x W x H:** 7.3 x 3.7 x 3.7 centimetres - **Material:** Plastic - **Operating voltage:** 660 Volts - **Operation mode:** ON-OFF-ON - **Switch type:** Rotary - **Terminal:** Screw ## Images ![Universal Rotary Cam Selector Changeover Switch SZW26-20/D202.2 660V 20A ON-OFF-ON 3 Position 2 Phase 8 Terminals - Image 1](https://m.media-amazon.com/images/I/71G2eqAhUBL.jpg) ## Questions & Answers **Q: Could this be used to select between powering two appliances that I never want to use at same time, so avoiding ever tripping breaker** A: Absolutely, I used this to power an electric gate switching between solar and mains power. I had two power supplies powering one product, You're just doing the reverse, one power supply to two products. **Q: Why are there no instructions or proper wiring diagram?** A: Laziness and cost savings of manufacturing the world over. It doesn't matter what you buy these days very few instructions are included. It is easier for the buyer to look them up on the net and print them out their selves. Have wasted many hours doing this. That's about all the help I can give. **Q: Can I use this to switch between mains 240v and inverter in a motorhome?** A: Yes, I used it to switch from shore power to inverter power, 1 input from shore, 2 input from inverter, output to consumer unit. **Q: Can anyone recommend a larger back box for this swith (I need 2x2.5mm input cables and 2x outputs), the ones I see only have space for 2.** A: If you have the correct holesaw and an Hss drill for the fitting set screws you can fit this to any deep, IP rated surface box with a flat surface ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice item *by on Reviewed in the United Kingdom 9 February 2026* Seems to be sturdy enough. No complaints ### ⭐⭐⭐⭐⭐ Not clearly defined, but fine for switching low voltage 12v circuits too. *by on Reviewed in the United Kingdom 13 July 2024* Used to alternately switch power between two 12v TVs from a single power stabiliser adaptor.The details of the product does not make clear that it's fine to use this for low voltage applications, but it certainly is (and has worked as above in my caravan really well).It's a very solid bit of kit too and is easily fitted and looks great when installed.Many reviewers here state the instructions too basic to understand, but I can't really see this argument given a simplistic yet idiot proof diagram is provided showing exactly what switching connections are achieved in the three switch positions (the mid position denoting all connections being off).It's a bargain and I'm really pleased... ### ⭐⭐⭐⭐ Cross over switch *by on Reviewed in the United Kingdom 14 October 2023* I bought this switch for my caravan. I installed it to change over from solar panels to the mains electricity. Works wonders ## Frequently Bought Together - Heschen Universal Rotary Cam Selector Changeover Switch SZW26-20/D202.2 660V 20A ON-Off-ON 3 Position 2 Phase 8 Terminals CE - Electromagnetic Power Relay, 8-Pin 10 AMP 110V/120V AC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC - MY2NJ 2PCS [Applicable for DIN Rail System] --- ## 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/113831376-universal-rotary-cam-selector-changeover-switch-szw26-20-d202-2](https://www.desertcart.dk/products/113831376-universal-rotary-cam-selector-changeover-switch-szw26-20-d202-2) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-09-01*