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A black electrical device labeled EARU ELECTRIC showing an ATS with 220V input and output, displaying a voltage reading of 63
A white dual power automatic transfer switch with input and output terminals and technical parameters.
A dual power automatic transfer switch device showing input and output voltage readings on a digital display.
A hand points to a digital ATS switch displaying dual voltage readings and a current value on a white power module.
A white dual power automatic transfer switch device with a digital display and rail mounting clips.
A black electrical device labeled EARU ELECTRIC showing an ATS with 220V input and output, displaying a voltage reading of 63
A white dual power automatic transfer switch with input and output terminals and technical parameters
A display showing various settings and protection values for a dual power automatic transfer switch.
A dual power automatic transfer switch unit showing input and output terminals for flexible main power supply selection.
A hand points to a digital ATS switch displaying dual voltage readings and a current value on a white power module.
A dual power automatic transfer switch device showing input and output voltage readings on a digital display.
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Dual Power Automatic Transfer Switch with Voltage Protection Relay

35 reviews
Regular price $117.99 Sale price $99.99

This automatic transfer switch delivers reliable power management with integrated overvoltage, undervoltage, and overcurrent protection. It automatically switches between two power sources, ensuring uninterrupted operation for critical equipment. Automatic transfer switch for...

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Why customers love it

Seamless power switching for critical equipment

This dual power automatic transfer switch keeps your equipment running by automatically switching between two power sources, with built-in protection and adjustable settings.

  • Automatically switches between two power sources for uninterrupted operation
  • Built-in overvoltage, undervoltage, and overcurrent protection
  • Fast transfer time of less than 0.2 seconds
  • Adjustable auto-reclosing delay from 1 to 600 seconds
  • Available in 63A and 100A versions
A black electrical device labeled EARU ELECTRIC showing an ATS with 220V input and output, displaying a voltage reading of 63

Why choose this transfer switch?

Uninterrupted operation

Automatically switches between primary and reserve power sources to keep critical equipment running without manual intervention.

Built-in protection

Integrated overvoltage, undervoltage, and overcurrent protection safeguards connected equipment from power irregularities.

Configurable priority

Flexible phase sequence switching with configurable priority and an adjustable auto-reclosing delay from 1 to 600 seconds.

Versatile power options

Available in 63A and 100A versions with AC 220V and AC 110V options to match different load requirements.

Setup

How It Works

No electrician, no wiring, no fuss.

  1. Connect two power sources

    Wire the primary and reserve power sources to the automatic transfer switch.

  2. Set the priority and delay

    Configure the phase sequence priority and auto-reclosing delay from 1 to 600 seconds to match your needs.

  3. Automatic switching

    The switch continuously monitors both sources and transfers to the active one in under 0.2 seconds when needed.

Specifications

The details that matter

Current Rating
63 Amps, 100 Amps
Voltage
AC 220V, AC 110V
Transfer Time
less than 0.2 seconds
Voltage Accuracy
<1%
Hysteresis
5V

More details

This automatic transfer switch delivers reliable power management with integrated overvoltage, undervoltage, and overcurrent protection. It automatically switches between two power sources, ensuring uninterrupted operation for critical equipment.

  • Automatic transfer switch for seamless switching between primary and reserve power sources
  • Built-in overvoltage, undervoltage, and overcurrent protection
  • Adjustable auto-reclosing delay (1–600 seconds)
  • Flexible phase sequence switching with configurable priority
  • High voltage accuracy of <1% with hysteresis of 5V
  • Fast transfer time of less than 0.2 seconds
  • Available in 63A and 100A versions to suit different load requirements
  • CE and RoHS certified for safety and reliability

Ideal for backup power systems, generator transfer, and critical load management in residential or light commercial settings.

A few things worth knowing

Everything you might want to know before you order.

What is the transfer time?

The transfer time is less than 0.2 seconds, ensuring fast switching between power sources.

What voltage options are available?

This transfer switch is available in AC 220V and AC 110V versions.

What current ratings are offered?

The switch comes in 63A and 100A versions to suit different load requirements.

Is the auto-reclosing delay adjustable?

Yes, the auto-reclosing delay is adjustable from 1 to 600 seconds.

What protection features are built in?

It includes built-in overvoltage, undervoltage, and overcurrent protection.

How do delivery and returns work?

Shipping

Free standard shipping

To United States: 1–3 business days processing, then 7–15 business days in transit. Estimates, not guaranteed dates.

Your dispatch email includes a tracking link. Contact us if it has not arrived within 5 business days of ordering.

Outside the EU, import duties and local taxes may be payable on delivery. See the shipping policy for supported destinations and conditions.

Returns

Request a return within 14 days of delivery. Standard eligible returns must meet the policy conditions; a €4 prepaid-label fee is deducted from the refund. Return shipping is free for faulty, damaged or incorrect items. Contact us promptly if something is wrong. Your mandatory consumer rights are unaffected.

Shipping policy · Return & refund policy

Have a question? Contact us

  • 5 stars: 23 (66%)
  • 4 stars: 1 (3%)
  • 3 stars: 5 (14%)
  • 2 stars: 2 (6%)
  • 1 star: 4 (11%)
C
Craig Batz

The switch has 6 contacts, 5 of which are functional. one is stuck wide open and won't close at all; it is impossible to secure a wire to it. i have returned the item and am waiting for my refund.

D
Davis Ledner

Dual Power Automatic Transfer Switch with Voltage Protection Relay

N
Na Little

Good product

S
Shirlee Homenick

switches quietly, has a relay

M
Mary Schmidt

everything works, but the switching time cannot be set to less than 1 second

G
Gordon Wintheiser

Shipping is very fast. The neutral is completely dead, unfortunately, it won't work for the generator without an additional disconnector, and thus the point of automating the switching process without human intervention is lost. The advantage is that you can set the necessary overload disconnection. Overall, I am satisfied with the purchase.

J
Josh Cronin

Good finish, easy setup, matches the description

G
Gilbert Gottlieb

Ok

J
Jarod Kuhn

Super item

L
Loralee Rolfson

The package arrived unsealed. Maybe it was opened at customs.

T
Treasa Borer

Good

R
Roscoe Mills

"the neutrals are not isolated per circuit. all neutral conductors are connected together, so there is no individual neutral isolation between circuits

D
Doug Yost

Product as described. i recommend 100%.

W
Warren Ratke

Shipping and delivery in less than a week, a shame that the box was open, the ATS smelled like it was burnt, the box contained traces of stripped wires and when connecting it, the house circuit breaker tripped.
Under these conditions, I am giving a negative review to the seller for not inspecting the product. I can't say anything more about the product other than that it seems like a good product for the price it has; we need to see how it performs.

B
Ben Zemlak

Very good service from the seller, I highly recommend it.

T
Tabetha Wiegand

Received in primma condition

R
Reagan Beahan

I'm happy with the product

D
Don Crist

The neutral is connected to both networks, it only cuts off the phase.

W
Williams O'Kon

I have bought this more than 5 times, that's why I give it 4 stars, but the last one that arrived doesn't work. I thought it might be a configuration issue, but no, the ATS is defective. It shows a short circuit without anything at the AC output. I repeat, this is the first one this has happened to me.

D
Daron Hermiston

I haven't tested it yet, but the speed with which the item arrived made me very happy. Once I've tested it, I'll let you know the results.

A
Andera Pacocha

Good

J
Jon Dietrich

It arrived broken, I'm trying to return it but it's not working. Three trips to the post office without success. Two times the return codes had issues, and one time the system wasn't working.

A
Annalisa Kertzmann

Thank you! Very fast delivery.

R
Rikki Schmitt

Ats is not reliable. have caused a shortcut between 2 input circuit s. also sometimes stucks without enabling output even after voltage reaches normal level.

T
Ty Ziemann

Compact, nice design, good functional.
Better looking than the most.

M
Mack Nienow

Amazing product. slight delay in changeover seen faster. need to change to 0 delay. but really nice display and information

C
Corey Gutmann

Delivery to Ukraine took 2 weeks, I am not particularly satisfied with the product, as the device has a significant delay of about 1 second when switching phases, which causes connected household appliances to turn off completely. Moreover, the dial of the voltmeter and ammeter displays incorrect readings, and it is not possible to calibrate the device. The product manual does not include a calibration algorithm.
The inscriptions on the device body are done incorrectly (reversed).
I will add a review after a week of use.

C
Chae Rosenbaum

I haven't connected it yet, I hope it will work.

O
Owen Pollich

Unfortunately, it cannot be set up for uninterrupted switching, so it's not the real one.

J
Jed Hyatt

The product is as described; I haven't tried it yet, but I will.

L
Lonnie Keebler

The minimum transferring time is can be set to 1s only. so during the power transition the equipments switch off. other than that the operation is smooth quality feel premium.