I need a remote switch that remembers it's last state in the event of a power cut. (if on wil be on when power is restored) will this do that?

No, after killing power it returns to off state and stays on off state when power returns

How do you use this with a 3 wire cord (neutral, hot, ground)?

You should never break (interrupt) the ground wire. This device is a switch, no different than a light switch in your house. When you turn off a light in your house for example, it interrupts the power between source and device. This remote switch operates the same way in that it interrupts the current carrying conductors from source to end device. So to answer your question in simplest terms: never interrupt the ground conductor, only the current carrying conductors I.E. Hot and Neutral only. Leave the ground wire or route the ground wire to ground point on the end device or bond it directly to the metal frame of the end device.

i need multiple remotes whats your email

I’m not an electrician. You can get more remotes on Amazon. The directions with the kit tell you how to program them. (Also can be found in a Google search.) not giving out my email. Thanks.

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VONVOFF Wireless Remote Switch,AC110V/120V/240V/ 30A Relay RF Remote Control Light Switches with 328ft Long Range,Wireless ON/Off Switch kit for Pump lamp,Motor,Fan,dust Collector,Light,Garage Door.

VONVOFF Wireless Remote Switch,AC110V/120V/240V/ 30A Relay RF Remote Control Light Switches with 328ft Long Range,Wireless ON/Off Switch kit for Pump lamp,Motor,Fan,dust Collector,Light,Garage Door.

Product ID: 67395590

Details

Brand
donjon
Circuit Type
3-way
Connector Type
Through Hole
Contact Type
Normally
Current Rating
30 Amps
Item dimensions L x W x H
3.46 x 2.28 x

⚡30A high current relay

📶328ft RF long range

🔧Plug & play no app setup

₩51506

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Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Command your space wirelessly — power meets freedom!

POWERHOUSE CONTROL - Handles up to 3000W with a robust 30A relay for heavy-duty appliances.
MULTI REMOTE MASTERY - Sync multiple remotes and switches for ultimate flexible control setups.
WALL PIERCING SIGNAL - Reliable RF tech ensures control through walls and floors up to 328ft away.
PLUG PLAY SIMPLICITY - No app, no fuss—easy wiring and instant operation out of the box.
VERSATILE APPLICATIONS - Perfect for pumps, fans, garage doors, lights, and industrial automation.

The VONVOFF Wireless Remote Switch is a heavy-duty 30A/3000W RF remote control switch designed for high current devices. Featuring a 40A relay and a long 328ft signal range, it offers reliable wireless control through walls and floors without any app setup. Ideal for controlling pumps, fans, lights, garage doors, and industrial equipment, it supports multiple remotes and switches for flexible configurations, making it a plug-and-play powerhouse for professional and home automation needs.

Specifications

ASIN	B07CTL3TG6
Actuator Type	Push Button
Best Sellers Rank	#66,119 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #229 in Electrical Light Switches
Brand Name	donjon
Circuit Type	3-way
Color	black
Connectivity Protocol	RF
Connector Type	Through Hole
Contact Material	Silver
Contact Type	Normally Closed
Control Method	Remote
Current Rating	30 Amps
Customer Reviews	4.5 4.5 out of 5 stars (3,161)
International Protection Rating	IP54
Item Dimensions	3.46 x 2.28 x 1.97 inches
Item Weight	120 Grams
Manufacturer	DONJON
Model	S-110-1/MZWX-F1-1MZWX-F1-1
Mounting Type	Wall Mount
Operating Voltage	120 Volts
Operation Mode	manual
Part Number	O-330
Specification Met	Ip54
Switch Type	Push Button
UPC	667581299911
Unit Count	1 Count
Wattage	3000 watts

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₩51506

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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