I have two hots going into my breaker box (240volts). I want to put this switch before it reaches power to the box so I can cut power completely?

Without me being able to see it, I don’t know how you would get 240 v from it. I can see how you could get 120 v from each switch but to have 240 v, I’m sorry but I don’t know the answer.

How do you attach the face plate?

If you look close at the picture you can see a screw in the knob and two black “plates.” Remove the screw and knob and then you can put a plate on either side of whatever you are installing the switch on and put the knob and screw back in. I bought the box in the “frequently bought together” section on Amazon too. Baomain Master Switch Exterior Box SZW26-20 Work for Cam Switch SZW26-20/0-3.2 660V 20A 4 Position I hope this helps

I want to run a series of 20 amp rectifying diodes around a rotary switch to adjust voltage to a 12vdc, 250 watt motor. Will this switch work?

This should work for what you explained.

can I use it to switch from charging 2 12v batteries in parallel to using my 24 v trolling motor in serial?

Trolling motors can draw a lot of amperage, make sure you spec it correctly

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Taiss Universal Changeover Switch 20A 550V 4 Position 8 Terminal Ratchet Rotary Cam Selector Switch + SV2-4s Blue Connection Terminal LW26-20 0-4/2

Taiss Universal Changeover Switch 20A 550V 4 Position 8 Terminal Ratchet Rotary Cam Selector Switch + SV2-4s Blue Connection Terminal LW26-20 0-4/2

Product ID: 778467370

Details

Brand
Taiss
Connector Type
Clamp
Current Rating
20 Amps
Operating Voltage
550 Volts
Operation Mode
ON-OFF

⚡20A high current rating

🔄5-position ratchet rotary action

🔥Flame-retardant PC material

€ 76.99

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Description

🔧 Switch Smart, Switch Safe — Command Your Circuit with Style!

VERSATILE CONTROL HUB - Ideal for motor control, circuit switching, and signal transfer in professional-grade setups
BUILT TO LAST PROTECT - Flame-retardant PC housing with copper-silver alloy terminals for superior conductivity and oxidation resistance
SMOOTH SECURE SWITCHING - 5-position ratchet rotary selector ensures precise, firm detents with break-before-make contacts
POWER THROUGH WITH CONFIDENCE - Handles up to 20A at 550V for robust electrical control
EASY INSTALLATION INTEGRATION - Compact 48x48x72mm size with surface mount and included terminals & screws for quick setup

The Taiss Universal Changeover Switch is a professional-grade 5-position rotary selector switch rated for 20A and 550V, featuring flame-retardant PC material and copper-silver alloy terminals for durability and conductivity. Designed for versatile electrical control applications including motor and circuit switching, it offers smooth, secure switching with break-before-make contacts and comes with all necessary mounting hardware for easy installation.

Specifications

ASIN	B08GR2344M
Best Sellers Rank	#68,236 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #262 in Switches
Brand Name	Taiss
Connector Type	Clamp
Contact Material	Copper
Country of Origin	USA
Current Rating	20 Amps
Customer Reviews	4.2 4.2 out of 5 stars (158)
International Protection Rating	IP54
Item Dimensions	50 x 50 x 50 Millimeters
Manufacturer	Taiss
Material Type	Copper, Silver
Model Number	20A 550V
Mounting Type	Surface Mount
Number of Items	1
Number of Positions	4
Operating Voltage	550 Volts
Operation Mode	ON-OFF
Part Number	20A 550V
Switch Type	Rotary
Wattage	11000 Watts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

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€ 76.99

Duties & taxes included

In stock

Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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