---
product_id: 332855727
title: "– Heschen Universal Rotary Cam Selector Changeover Switch, SZW26-20/D202.2D, 660V 20A, ON-Off-ON, 3 Position 2 Phase 8 Terminals, with Master Switch Exterior Box,(Standard Box)"
brand: "heschen"
price: "₩77425"
currency: KRW
in_stock: true
reviews_count: 13
category: "Heschen"
url: https://www.desertcart.kr/products/332855727-heschen-universal-rotary-cam-selector-changeover-switch-szw26-20-d202
store_origin: KR
region: South Korea
---

# 660V max voltage IP65 waterproof rating 3-position ON-Off-ON switch – Heschen Universal Rotary Cam Selector Changeover Switch, SZW26-20/D202.2D, 660V 20A, ON-Off-ON, 3 Position 2 Phase 8 Terminals, with Master Switch Exterior Box,(Standard Box)

**Brand:** heschen
**Price:** ₩77425
**Availability:** ✅ In Stock

## Summary

> 🔌 Switch Smart, Stay Powered – The Ultimate Control Hub

## Quick Answers

- **What is this?** – Heschen Universal Rotary Cam Selector Changeover Switch, SZW26-20/D202.2D, 660V 20A, ON-Off-ON, 3 Position 2 Phase 8 Terminals, with Master Switch Exterior Box,(Standard Box) by heschen
- **How much does it cost?** ₩77425 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/332855727-heschen-universal-rotary-cam-selector-changeover-switch-szw26-20-d202)

## 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

- • **Seamless Switching:** 3-position rotary cam selector for precise ON-Off-ON operation
- • **Certified Reliability:** TUV and CE listed for guaranteed safety and performance
- • **Plug & Play Simplicity:** 8 terminals and master switch exterior box for straightforward wiring
- • **Power Up with Confidence:** Handles up to 660V and 20A for robust electrical control
- • **Built to Brave the Elements:** IP65-rated waterproof enclosure ensures durability in tough environments

## Overview

The Heschen Universal Rotary Cam Selector Changeover Switch (SZW26-20/D202.2D) is a heavy-duty, 3-position ON-Off-ON switch designed for 660V and 20A applications. Featuring an IP65 waterproof enclosure and 8 terminal connections, it offers reliable, certified performance (TUV, CE) for professional-grade electrical switching needs.

## Description

Heschen Universal Rotary Cam Selector Changeover Switch, SZW26-20/D202.2D, 660V 20A, ON-Off-ON, 3 Position 2 Phase 8 Terminals, with Master Switch Exterior Box,(Standard Box) : desertcart.co.uk: Business, Industry & Science

Review: Good value - Very cool item
Review: Great quality solid switch. - I installed this in my camper, to switch between a battery inverter and mains. Get the the large back box version as wiring is made a lot simpler. I installed an extra gland as there are only two supplied. Wiring is straight forward, although the instructions could be a more helpful.

## Features

- Model: SZW26-20/D202.2D
- Ui: 660V; Ith: 20A; Uimp: 2.5KV
- Positions: 3 Positions(1-0-2)
- AC-15, Ue: 440V, Ie: 20A; DC-13, Ue: 240A, Ie: 1A
- TUV,CE List; IP65 Waterproof Enclosure

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B097T3DXV8 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 15,686 in DIY & Tools ( See Top 100 in DIY & Tools ) 183 in Switches & Dimmers |
| Colour | Blue |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,022) |
| Date First Available | 10 Dec. 2018 |
| Included components | SZW26-20/D202.2D |
| Item Package Quantity | 1 |
| Item Weight | 240 g |
| Item model number | SZW26-20/D202.2D |
| Manufacturer | SL |
| Part number | SZW26-20/D202.2D |
| Product Dimensions | 8.7 x 6.6 x 6.6 cm; 240 g |
| Style | Standard Box |
| Switch Type | 3-way |
| Wattage | 13200 watts |

## Product Details

- **Brand:** Heschen
- **Connector type:** Screw
- **Contact type:** Normally Open
- **Current rating:** 20 Amps
- **Item dimensions L x W x H:** 8.7 x 6.6 x 6.6 centimetres
- **Material:** Metal
- **Operating voltage:** 660 Volts
- **Operation mode:** ON-OFF-ON
- **Switch type:** Rotary
- **Terminal:** Screw

## Images

![– Heschen Universal Rotary Cam Selector Changeover Switch, SZW26-20/D202.2D, 660V 20A, ON-Off-ON, 3 Position 2 Phase 8 Terminals, with Master Switch Exterior Box,(Standard Box) - Image 1](https://m.media-amazon.com/images/I/71g8wzkq30L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Is this ok for switching between 2 different 240v supplies up to 10 amps in a camper van**
A: I’ve not fitted it yet, but I’m using the one I’ve purchased for that purpose. Incoming 240v mains supply or 240v from inverter on to the camper can system.

**Q: Using as a camper hook up to invertor where will the earth go please, do we use a seperate wago or something**
A: Yes, just connect all earths into a Wago connector or similar. Space is tight inside this enclosure. Also, be sure to buzz out connections and switching prior to wiring, the identification of the terminals is not overly clear.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good value
*by A***R on 25 January 2026*

Very cool item

### ⭐⭐⭐⭐⭐ Great quality solid switch.
*by A***R on 2 November 2025*

I installed this in my camper, to switch between a battery inverter and mains. Get the the large back box version as wiring is made a lot simpler. I installed an extra gland as there are only two supplied. Wiring is straight forward, although the instructions could be a more helpful.

### ⭐⭐⭐⭐ Work great, could do with a bit bigger casing
*by D***G on 14 June 2023*

These are a decent build quality. They only come with two glands, so be aware of that. Can't figure out how to install the included jumper bars. Really they need a bit more space to connect the earth cables, but they are much more compact than triple pole versions. They look tidy and have a very nice, positive click.

## Frequently Bought Together

- Heschen Universal Rotary Cam Selector Changeover Switch, SZW26-20/D202.2D, 660V 20A, ON-Off-ON, 3 Position 2 Phase 8 Terminals, with Master Switch Exterior Box,TUV(Standard Box)
- Leviton 5278-CWP Straight Blade Flanged Male Power Inlet Receptacle, 15 A, 125 V, Nylon Face, Body And Strap , gray

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**Shop now:** [https://www.desertcart.kr/products/332855727-heschen-universal-rotary-cam-selector-changeover-switch-szw26-20-d202](https://www.desertcart.kr/products/332855727-heschen-universal-rotary-cam-selector-changeover-switch-szw26-20-d202)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-07*