---
product_id: 149189557
title: "Baomain Universal Rotary Changeover Switch SZW26-20/D202.2D-W with Wider Master Switch Exterior Box 660V 20A 3 Position 2 Phase (3.15\"x3.15\"x3.7\")"
brand: "baomain"
price: "€ 19.69"
currency: EUR
in_stock: true
reviews_count: 13
category: "Baomain"
url: https://www.desertcart.ie/products/149189557-baomain-universal-rotary-changeover-switch-szw26-20-d202-2d-w
store_origin: IE
region: Ireland
---

# 660V max voltage 3-position rotary control 8 screw terminals for secure wiring Baomain Universal Rotary Changeover Switch SZW26-20/D202.2D-W with Wider Master Switch Exterior Box 660V 20A 3 Position 2 Phase (3.15"x3.15"x3.7")

**Brand:** baomain
**Price:** € 19.69
**Availability:** ✅ In Stock

## Summary

> 🔄 Master your power flow with Baomain’s ultimate rotary switch!

## Quick Answers

- **What is this?** Baomain Universal Rotary Changeover Switch SZW26-20/D202.2D-W with Wider Master Switch Exterior Box 660V 20A 3 Position 2 Phase (3.15"x3.15"x3.7") by baomain
- **How much does it cost?** € 19.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/149189557-baomain-universal-rotary-changeover-switch-szw26-20-d202-2d-w)

## Best For

- baomain enthusiasts

## Why This Product

- Trusted baomain brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power Up to 660V ⚡:** Handles high voltage demands with ease for industrial-grade reliability.
- • **Triple-Mode Control 🔄:** Seamlessly switch between ON-OFF-ON positions for versatile applications.
- • **Precision Screw Terminals 🔩:** 8 secure connection points ensure stable and safe wiring every time.
- • **Robust 20A Current Rating 🔋:** Supports heavy-duty electrical loads without compromise.
- • **Compact & Durable Design 🛡️:** IP65 rated exterior box protects against dust and water, built to last.

## Overview

The Baomain Universal Rotary Changeover Switch SZW26-20/D202.2D-W is a compact, industrial-grade switch designed for 660V and 20A applications. Featuring a 3-position ON-OFF-ON rotary actuator, 8 screw terminals for secure wiring, and an IP65-rated protective exterior box, it offers reliable, versatile control for forward/reverse or multi-phase electrical setups. Perfect for professionals seeking durable, precise switching solutions.

## Description

Buy Baomain Universal Rotary Changeover Switch SZW26-20/D202.2D-W with Wider Master Switch Exterior Box 660V 20A 3 Position 2 Phase (3.15"x3.15"x3.7"): Transfer Switches - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Excellent forward/reverse switch. - It has extra switch connections so I added forward and reverse lights. Works great!
Review: Wired to switch my inverter - I wired it up for the inverter in rv so I could isolate if not needed. Worked great.

## Features

- Pole Numbers : 2 Pole (8 Screw Terminals)
- Ui : 660V ; Ith : 20A
- Positions : 3 Positions(1-0-2)
- Size : 80 x 80 x 94 mm/ 3.15" x 3.15" x 3.7" (L*W*T)
- Total Weight : 220g

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07SKNMY9P |
| Actuator Type | Rotary |
| Best Sellers Rank | #20,492 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Selector Switches |
| Brand | Baomain |
| Circuit Type | 3-way |
| Connectivity Protocol | / |
| Connector Type | Plug In |
| Contact Material | Silver |
| Contact Type | Normally Open |
| Control Method | Touch |
| Controller Type | Mechanical knob |
| Current Rating | 20 Amps |
| Date First Available | July 23, 2016 |
| International Protection Rating | IP65 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 7.8 ounces |
| Item dimensions L x W x H | 3.7 x 3.15 x 3.15 inches |
| Item model number | SZW26-20/D202.2D-W |
| Manufacturer | Baomain |
| Number of Items | 1 |
| Number of Positions | 3 |
| Operating Voltage | 660 Volts |
| Operation Mode | ON-OFF-ON |
| Product Dimensions | 3.7 x 3.15 x 3.15 inches |
| Terminal | Screw |
| UPC | 711811438776 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 70 Degrees Celsius |
| Wattage | 13200 watts |

## Product Details

- **Brand:** Baomain
- **Connector Type:** Plug In
- **Contact Type:** Normally Open
- **Current Rating:** 20 Amps
- **Item dimensions L x W x H:** 3.7 x 3.15 x 3.15 inches
- **Material:** Plastic, Copper, Silver Alloy
- **Operating Voltage:** 660 Volts
- **Operation Mode:** ON-OFF-ON
- **Switch Type:** Rotary
- **Terminal:** Screw

## Images

![Baomain Universal Rotary Changeover Switch SZW26-20/D202.2D-W with Wider Master Switch Exterior Box 660V 20A 3 Position 2 Phase (3.15"x3.15"x3.7") - Image 1](https://m.media-amazon.com/images/I/61n-7Uv4-1L.jpg)

## Questions & Answers

**Q: I plan to connect the generator output and the power company mains using this manual ts. where do i connect the 'earth' wire?**
A: The grounds are common, so the grounds can be connected together. The neutral needs to be switched through the switch.

**Q: can this take 16 mm cable in the terminals ?**
A: 16mm or 16 gauge?  It can take up to 14 gauge MAX.  I tried 12 gauge stranded and it wouldn't fit

**Q: How would i wire this to act as a spdt switch on 12v dc? i wish to switch between two power sources. any advice is appreciated.**
A: You would have to connect a jumper on the output side. (eg. sw to pos 1 will connect pole 1 and 3.  sw to pos 2 will connect pole 2 and 4. pwr source 1 to pole 1 and pwr source 2 to pole 2. add jumper btwn pole 3 and 4 and use pole 4 as an output.)  NOTE!! Check pole switching this is just an example!!!  also be aware of the amperage this is an AC switch box.

**Q: I need to switch between two ac sources, do i use 1/3/5/7 as the output? i follow that 2/6 for pos1 and 4/8 for pos2 , but what output terminals?**
A: Connect the load's hot wire to positions 1&3.
Connect the load's neutral wire to positions 5&7.
Connect AC Source #1's hot wire to 2.
Connect AC Source #1's neutral wire to 6.
Connect AC Source #2's hot wire to 4.
Connect AC Source #2's neutral wire to 8.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent forward/reverse switch.
*by R***S on November 13, 2025*

It has extra switch connections so I added forward and reverse lights. Works great!

### ⭐⭐⭐⭐⭐ Wired to switch my inverter
*by R***4 on December 29, 2025*

I wired it up for the inverter in rv so I could isolate if not needed. Worked great.

### ⭐⭐⭐⭐ Well constructed switch, BUT no instructions
*by B***S on July 29, 2020*

I bought four of these switches for connecting a few critical circuits in my house to a portable backup generator. The switches are constructed well, but come with no instructions. They're designed for outdoor use, but I used them indoors and can't comment on their weatherproof effectiveness. They come fitted in a small box that makes them difficult to work with when using 14 or 12 gauge wire, so I discarded the furnished box enclosures and adapted them to a pair of 3-gang electrical boxes (two switches to a box) that gave me more working room. The switches have eight terminals labeled 1 thru 8 and each terminal can accept 2 wires. When the switch is set to 1 the top half of the connections are activated, with terminal 1 connected to terminal 2 and terminal 5 connected to terminal 6. When the switch is set to 2 the bottom half of the connections are activated, with terminal 3 connected to terminal 4 and terminal 7 connected to terminal 8. When the switch is set to 0 all connections are off. I wired the four switches to accommodate crossover power from my generator for one 220 V. circuit and six 110 V. circuits. Please consult a certified electrician for wiring details.

## Frequently Bought Together

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-13*