---
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: "R475"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Heschen"
url: https://www.desertcart.co.za/products/113831376-universal-rotary-cam-selector-changeover-switch-szw26-20-d202-2
store_origin: ZA
region: South Africa
---

# 660V max voltage 3-position rotary switch 20A current rating Universal Rotary Cam Selector Changeover Switch SZW26-20/D202.2 660V 20A ON-OFF-ON 3 Position 2 Phase 8 Terminals

**Brand:** heschen
**Price:** R475
**Availability:** ✅ In Stock

## Summary

> 🔄 Switch Smart, Switch Strong – Never Miss a Beat!

## 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?** R475 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/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

- • **Solid & Compact:** Compact 50x50x70mm design with durable plastic and brass contacts for longevity.
- • **Easy Installation:** Surface or panel mount with screw terminals ensures quick, secure setup.
- • **Precision Control:** 3-position ON-OFF-ON rotary selector for seamless switching between circuits.
- • **Powerhouse Performance:** Handles up to 660V and 20A for robust industrial and home setups.
- • **Versatile Compatibility:** Perfect for electrical devices, motors, and even low voltage applications like 12V circuits.

## Overview

The Heschen Universal Rotary Cam Selector SZW26-20/D202.2 is a compact, durable 3-position rotary switch rated for 660V and 20A. Featuring brass contacts and screw terminals, it offers reliable ON-OFF-ON control for a variety of electrical devices and motors. Its versatile design supports both industrial and low voltage applications, making it a trusted choice for professionals seeking precision and durability.

## Description

Product Description

Review: Nice item - Seems to be sturdy enough. No complaints
Review: Not clearly defined, but fine for switching low voltage 12v circuits too. - 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...

## 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 |
|---------------|-------|
| ASIN | B07L8SJXGV |
| Actuator Type | Rotary |
| Best Sellers Rank | 3,930 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 2 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 |
| Connector type | Screw Terminals |
| Contact Material | Brass |
| Contact Type | Normally Open |
| 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 |
| Current rating | 20 Amps |
| Customer Reviews | 4.5 out of 5 stars 2,804 Reviews |
| 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 | Surface mount or panel mounting |
| Number of Items | 1 |
| Number of Positions | 3 |
| Operating Voltage | 660 Volts |
| Operating voltage | 660 Volts |
| Operation Mode | ON-OFF-ON |
| Operation mode | ON-OFF-ON |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specification Met | CE, IP20 |
| Switch Type | Rotary |
| Terminal | Screw |
| UPC | 670534181324 |
| Unit Count | 1 count |
| 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/71duJ79ippL.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 A***R on 9 February 2026*

Seems to be sturdy enough. No complaints

### ⭐⭐⭐⭐⭐ Not clearly defined, but fine for switching low voltage 12v circuits too.
*by I***E on 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 M***W on 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
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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-07-30*