is this a latching relay? if power is disconnected then reconnected, will it still be in the on? or does the remote need to be pushed on again?

If power is disconnected then reconnected, it will be in the off. It need to be pushed on again.

How do i use this unit with 240v when l1, l2 and n wires are required? the unit i received has terminals for only l1 and n wires.

I would connect the black and red power lines to L1 and N in, and the black and red from the motor to L1 and N output. Connect the white from the line and the motor together. There is no power in the white wires. Since the unit is rated for 240v, this is the only way to make the connection.

Is thisa dpdt relay? i am wired 220v and need both legs switched, can not have a hot leg in the motor and stay code compliant.

I’m using it as a switch for lighting connected to a solar array. Both pos and neg connect to the controller however I’m not sure if its just a pass-through on one leg.

The off/on switch on the side is marked "f n". what does that mean, in what language?? i know that it works as an off/on switch.

The only purpose of the F / N slider is to put the remote control into programming mode. The remotes must be programmed to work with the switch.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Remote Control Switch,40A Relay Switch,1500M Long Distance.

Product ID: 231589365

Details

Connector Type
Wireless
Contact Material
Metal
Contact Type
Normally Open
Current Rating
40 Amps
Mounting Type
Wall Mount

⚡40A high power relay

📶4900FT max RF range

🔒Secure learning code tech

฿5135

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered 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 Thailand.

Secure transaction

Description

⚡ Power up your control game from anywhere — no wires, no limits!

ROBUST 40 A RELAY POWER - Handles heavy-duty electrical loads safely with a transformer-isolated relay, perfect for pumps, motors, and lighting.
NEXT LEVEL SIGNAL STABILITY - Ultra-sensitive -114dBm RF tech cuts through walls and interference for rock-solid remote control.
SMART SECURE CODE LEARNING - Easily reprogram or delete old codes with advanced security to prevent unauthorized access.
UNMATCHED LONG RANGE CONTROL - Operate your high-power devices effortlessly from up to 1500 meters (4900FT) away — no obstacles needed.
VERSATILE INDUSTRIAL GRADE APPLICATION - Ideal for water pumps, motors, fans, sprayers, and more — the ultimate wireless switch for pros.

The dstfuy Remote Control Switch delivers professional-grade wireless control with a 40A relay capable of handling up to 3000W loads. Featuring a robust RF signal with a 4900FT range and secure learning code technology, it ensures reliable, safe operation of high-power electrical equipment like water pumps and motors. Designed for easy wall mounting and versatile industrial use, this switch empowers millennial managers to streamline control with confidence and style.

Specifications

ASIN	B08F1FYF7W
Best Sellers Rank	#68,640 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #300 in Garage Door Keypads & Remotes #440 in Home Security Systems
Brand Name	dstfuy
Coil Voltage	120 Volts (AC)
Connector Type	Wireless
Contact Current Rating	30 Amps
Contact Material	Metal
Contact Type	Normally Open
Current Rating	40 Amps
Customer Reviews	4.4 4.4 out of 5 stars (121)
Manufacturer	dstfuy
Minimum Switching Voltage	100 Volts (AC)
Model	ae3c36aa-4731-4d25-8c63-625f0703d3ff
Mounting Type	Wall Mount
Operation Mode	Manual
Unit Count	1 Count
Wattage	3000 watts

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

฿5135

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered 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 Thailand.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

View all Trustpilot reviews